./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:11:18,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:11:18,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:11:18,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:11:18,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:11:18,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:11:18,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:11:18,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:11:18,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:11:18,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:11:18,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:11:18,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:11:18,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:11:18,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:11:18,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:11:18,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:11:18,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:11:18,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:11:18,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:11:18,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:11:18,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:11:18,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:11:18,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:11:18,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:11:18,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:11:18,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:11:18,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:11:18,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:11:18,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:11:18,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:11:18,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:11:18,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:11:18,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:11:18,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:11:18,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:11:18,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:11:18,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:11:18,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:11:18,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:11:18,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:11:18,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:11:18,571 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-02 21:11:18,604 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:11:18,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:11:18,606 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:11:18,607 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:11:18,607 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:11:18,608 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:11:18,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:11:18,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:11:18,609 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:11:18,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:11:18,609 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:11:18,609 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:11:18,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:11:18,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:11:18,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:11:18,610 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-02 21:11:18,610 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-02 21:11:18,610 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-02 21:11:18,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:11:18,611 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 21:11:18,611 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:11:18,611 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:11:18,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:11:18,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:11:18,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:11:18,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:11:18,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:11:18,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:11:18,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:11:18,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:11:18,613 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 [2022-11-02 21:11:19,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:11:19,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:11:19,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:11:19,069 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:11:19,070 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:11:19,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2022-11-02 21:11:19,163 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/data/22e211e40/860f29f89b354f408035b991b5c508e8/FLAG591beeee7 [2022-11-02 21:11:19,877 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:11:19,886 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2022-11-02 21:11:19,904 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/data/22e211e40/860f29f89b354f408035b991b5c508e8/FLAG591beeee7 [2022-11-02 21:11:20,093 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/data/22e211e40/860f29f89b354f408035b991b5c508e8 [2022-11-02 21:11:20,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:11:20,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:11:20,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:11:20,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:11:20,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:11:20,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:11:20" (1/1) ... [2022-11-02 21:11:20,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36823191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:20, skipping insertion in model container [2022-11-02 21:11:20,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:11:20" (1/1) ... [2022-11-02 21:11:20,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:11:20,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:11:20,485 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2022-11-02 21:11:20,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:11:20,744 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:11:20,761 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2022-11-02 21:11:20,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:11:20,921 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:11:20,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:20 WrapperNode [2022-11-02 21:11:20,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:11:20,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:11:20,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:11:20,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:11:20,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:20" (1/1) ... [2022-11-02 21:11:20,977 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:20" (1/1) ... [2022-11-02 21:11:21,057 INFO L138 Inliner]: procedures = 41, calls = 108, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 1583 [2022-11-02 21:11:21,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:11:21,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:11:21,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:11:21,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:11:21,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:20" (1/1) ... [2022-11-02 21:11:21,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:20" (1/1) ... [2022-11-02 21:11:21,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:20" (1/1) ... [2022-11-02 21:11:21,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:20" (1/1) ... [2022-11-02 21:11:21,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:20" (1/1) ... [2022-11-02 21:11:21,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:20" (1/1) ... [2022-11-02 21:11:21,186 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:20" (1/1) ... [2022-11-02 21:11:21,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:20" (1/1) ... [2022-11-02 21:11:21,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:11:21,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:11:21,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:11:21,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:11:21,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:20" (1/1) ... [2022-11-02 21:11:21,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:11:21,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:11:21,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:11:21,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:11:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2022-11-02 21:11:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2022-11-02 21:11:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:11:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn [2022-11-02 21:11:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn [2022-11-02 21:11:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-11-02 21:11:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-11-02 21:11:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2022-11-02 21:11:21,346 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2022-11-02 21:11:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-11-02 21:11:21,347 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-11-02 21:11:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-11-02 21:11:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-11-02 21:11:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2022-11-02 21:11:21,348 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2022-11-02 21:11:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2022-11-02 21:11:21,349 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2022-11-02 21:11:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2022-11-02 21:11:21,350 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2022-11-02 21:11:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-11-02 21:11:21,351 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-11-02 21:11:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:11:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-11-02 21:11:21,351 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-11-02 21:11:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2022-11-02 21:11:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2022-11-02 21:11:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:11:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:11:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2022-11-02 21:11:21,352 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2022-11-02 21:11:21,794 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:11:21,797 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:11:22,032 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:11:22,127 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-11-02 21:11:22,127 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-11-02 21:11:22,214 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:11:22,255 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-11-02 21:11:22,255 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-11-02 21:11:22,265 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:11:22,271 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:11:22,293 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:11:22,316 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:11:22,340 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:11:22,347 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:11:22,355 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:11:23,259 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L305: CdAudioPnp_#res#1 := 0; [2022-11-02 21:11:23,259 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##258: assume !false; [2022-11-02 21:11:23,260 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##257: assume false; [2022-11-02 21:11:23,260 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##286: assume !false; [2022-11-02 21:11:23,260 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##285: assume false; [2022-11-02 21:11:23,260 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !false; [2022-11-02 21:11:23,260 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume false; [2022-11-02 21:11:23,260 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##133: assume false; [2022-11-02 21:11:23,261 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##134: assume !false; [2022-11-02 21:11:23,261 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2022-11-02 21:11:23,261 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2022-11-02 21:11:23,262 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-11-02 21:11:23,262 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-11-02 21:11:23,263 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##331: assume false; [2022-11-02 21:11:23,264 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##332: assume !false; [2022-11-02 21:11:23,329 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:11:23,342 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:11:23,342 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 21:11:23,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:11:23 BoogieIcfgContainer [2022-11-02 21:11:23,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:11:23,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:11:23,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:11:23,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:11:23,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:11:20" (1/3) ... [2022-11-02 21:11:23,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eef37b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:11:23, skipping insertion in model container [2022-11-02 21:11:23,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:20" (2/3) ... [2022-11-02 21:11:23,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eef37b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:11:23, skipping insertion in model container [2022-11-02 21:11:23,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:11:23" (3/3) ... [2022-11-02 21:11:23,356 INFO L112 eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-1.c [2022-11-02 21:11:23,377 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:11:23,377 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-02 21:11:23,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:11:23,450 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@52963b3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:11:23,451 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-02 21:11:23,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 471 states, 368 states have (on average 1.5108695652173914) internal successors, (556), 388 states have internal predecessors, (556), 87 states have call successors, (87), 13 states have call predecessors, (87), 13 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) [2022-11-02 21:11:23,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-02 21:11:23,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:23,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:23,494 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:23,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:23,507 INFO L85 PathProgramCache]: Analyzing trace with hash 2107937846, now seen corresponding path program 1 times [2022-11-02 21:11:23,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:23,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615179340] [2022-11-02 21:11:23,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:23,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:23,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:23,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:23,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615179340] [2022-11-02 21:11:23,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615179340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:23,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:23,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:11:23,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540365615] [2022-11-02 21:11:23,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:23,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:11:23,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:23,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:11:23,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:23,908 INFO L87 Difference]: Start difference. First operand has 471 states, 368 states have (on average 1.5108695652173914) internal successors, (556), 388 states have internal predecessors, (556), 87 states have call successors, (87), 13 states have call predecessors, (87), 13 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:24,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:24,121 INFO L93 Difference]: Finished difference Result 623 states and 925 transitions. [2022-11-02 21:11:24,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:11:24,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-02 21:11:24,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:24,144 INFO L225 Difference]: With dead ends: 623 [2022-11-02 21:11:24,145 INFO L226 Difference]: Without dead ends: 619 [2022-11-02 21:11:24,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:24,150 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 690 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:24,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 952 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:11:24,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2022-11-02 21:11:24,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 603. [2022-11-02 21:11:24,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 486 states have (on average 1.4732510288065843) internal successors, (716), 494 states have internal predecessors, (716), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-11-02 21:11:24,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 904 transitions. [2022-11-02 21:11:24,269 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 904 transitions. Word has length 8 [2022-11-02 21:11:24,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:24,270 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 904 transitions. [2022-11-02 21:11:24,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:24,270 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 904 transitions. [2022-11-02 21:11:24,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 21:11:24,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:24,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:24,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:11:24,272 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:24,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:24,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1313128955, now seen corresponding path program 1 times [2022-11-02 21:11:24,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:24,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845607121] [2022-11-02 21:11:24,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:24,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:24,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:24,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:24,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845607121] [2022-11-02 21:11:24,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845607121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:24,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:24,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:11:24,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734876263] [2022-11-02 21:11:24,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:24,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:11:24,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:24,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:11:24,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:24,381 INFO L87 Difference]: Start difference. First operand 603 states and 904 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:24,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:24,437 INFO L93 Difference]: Finished difference Result 606 states and 905 transitions. [2022-11-02 21:11:24,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:11:24,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-02 21:11:24,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:24,442 INFO L225 Difference]: With dead ends: 606 [2022-11-02 21:11:24,442 INFO L226 Difference]: Without dead ends: 606 [2022-11-02 21:11:24,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:24,444 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 385 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:24,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 946 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:11:24,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-11-02 21:11:24,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 603. [2022-11-02 21:11:24,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 486 states have (on average 1.47119341563786) internal successors, (715), 494 states have internal predecessors, (715), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-11-02 21:11:24,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 903 transitions. [2022-11-02 21:11:24,516 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 903 transitions. Word has length 9 [2022-11-02 21:11:24,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:24,517 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 903 transitions. [2022-11-02 21:11:24,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:24,518 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 903 transitions. [2022-11-02 21:11:24,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 21:11:24,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:24,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:24,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:11:24,520 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:24,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:24,523 INFO L85 PathProgramCache]: Analyzing trace with hash 929457737, now seen corresponding path program 1 times [2022-11-02 21:11:24,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:24,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531552409] [2022-11-02 21:11:24,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:24,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:24,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:24,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:24,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531552409] [2022-11-02 21:11:24,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531552409] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:24,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:24,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:11:24,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982874857] [2022-11-02 21:11:24,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:24,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:11:24,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:24,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:11:24,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:24,646 INFO L87 Difference]: Start difference. First operand 603 states and 903 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:24,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:24,822 INFO L93 Difference]: Finished difference Result 602 states and 902 transitions. [2022-11-02 21:11:24,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:11:24,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-02 21:11:24,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:24,836 INFO L225 Difference]: With dead ends: 602 [2022-11-02 21:11:24,837 INFO L226 Difference]: Without dead ends: 599 [2022-11-02 21:11:24,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:24,845 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 418 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:24,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 850 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:11:24,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-11-02 21:11:24,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2022-11-02 21:11:24,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 483 states have (on average 1.453416149068323) internal successors, (702), 490 states have internal predecessors, (702), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-11-02 21:11:24,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 890 transitions. [2022-11-02 21:11:24,880 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 890 transitions. Word has length 9 [2022-11-02 21:11:24,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:24,880 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 890 transitions. [2022-11-02 21:11:24,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:24,881 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 890 transitions. [2022-11-02 21:11:24,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-02 21:11:24,882 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:24,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:24,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:11:24,883 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:24,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:24,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1469618489, now seen corresponding path program 1 times [2022-11-02 21:11:24,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:24,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694808218] [2022-11-02 21:11:24,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:24,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:24,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:24,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:24,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694808218] [2022-11-02 21:11:24,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694808218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:24,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:24,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:11:24,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332762742] [2022-11-02 21:11:24,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:24,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:11:24,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:24,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:11:24,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:24,937 INFO L87 Difference]: Start difference. First operand 599 states and 890 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:25,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:25,024 INFO L93 Difference]: Finished difference Result 602 states and 892 transitions. [2022-11-02 21:11:25,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:11:25,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-02 21:11:25,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:25,029 INFO L225 Difference]: With dead ends: 602 [2022-11-02 21:11:25,029 INFO L226 Difference]: Without dead ends: 599 [2022-11-02 21:11:25,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:25,030 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 0 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:25,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1335 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:11:25,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-11-02 21:11:25,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2022-11-02 21:11:25,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 483 states have (on average 1.4513457556935818) internal successors, (701), 490 states have internal predecessors, (701), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-11-02 21:11:25,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 889 transitions. [2022-11-02 21:11:25,059 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 889 transitions. Word has length 13 [2022-11-02 21:11:25,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:25,060 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 889 transitions. [2022-11-02 21:11:25,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:25,060 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 889 transitions. [2022-11-02 21:11:25,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 21:11:25,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:25,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:25,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:11:25,062 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:25,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:25,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1712839809, now seen corresponding path program 1 times [2022-11-02 21:11:25,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:25,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313265614] [2022-11-02 21:11:25,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:25,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:25,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:25,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:25,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313265614] [2022-11-02 21:11:25,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313265614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:25,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:25,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:11:25,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056784211] [2022-11-02 21:11:25,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:25,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:11:25,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:25,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:11:25,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:25,118 INFO L87 Difference]: Start difference. First operand 599 states and 889 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:25,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:25,391 INFO L93 Difference]: Finished difference Result 851 states and 1244 transitions. [2022-11-02 21:11:25,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:11:25,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-02 21:11:25,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:25,399 INFO L225 Difference]: With dead ends: 851 [2022-11-02 21:11:25,399 INFO L226 Difference]: Without dead ends: 850 [2022-11-02 21:11:25,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:25,401 INFO L413 NwaCegarLoop]: 816 mSDtfsCounter, 567 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:25,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 1041 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:11:25,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2022-11-02 21:11:25,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 799. [2022-11-02 21:11:25,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 656 states have (on average 1.4222560975609757) internal successors, (933), 649 states have internal predecessors, (933), 107 states have call successors, (107), 31 states have call predecessors, (107), 35 states have return successors, (136), 122 states have call predecessors, (136), 96 states have call successors, (136) [2022-11-02 21:11:25,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1176 transitions. [2022-11-02 21:11:25,459 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1176 transitions. Word has length 15 [2022-11-02 21:11:25,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:25,459 INFO L495 AbstractCegarLoop]: Abstraction has 799 states and 1176 transitions. [2022-11-02 21:11:25,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:25,460 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1176 transitions. [2022-11-02 21:11:25,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-02 21:11:25,469 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:25,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:25,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:11:25,470 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:25,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:25,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1930286977, now seen corresponding path program 1 times [2022-11-02 21:11:25,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:25,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251497131] [2022-11-02 21:11:25,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:25,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:25,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:25,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:25,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251497131] [2022-11-02 21:11:25,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251497131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:25,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:25,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:11:25,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532993080] [2022-11-02 21:11:25,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:25,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:11:25,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:25,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:11:25,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:25,703 INFO L87 Difference]: Start difference. First operand 799 states and 1176 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:25,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:25,743 INFO L93 Difference]: Finished difference Result 875 states and 1272 transitions. [2022-11-02 21:11:25,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:11:25,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-02 21:11:25,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:25,750 INFO L225 Difference]: With dead ends: 875 [2022-11-02 21:11:25,750 INFO L226 Difference]: Without dead ends: 875 [2022-11-02 21:11:25,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:25,756 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 601 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:25,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 870 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:11:25,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2022-11-02 21:11:25,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 847. [2022-11-02 21:11:25,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 699 states have (on average 1.4406294706723892) internal successors, (1007), 703 states have internal predecessors, (1007), 106 states have call successors, (106), 35 states have call predecessors, (106), 41 states have return successors, (127), 108 states have call predecessors, (127), 98 states have call successors, (127) [2022-11-02 21:11:25,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1240 transitions. [2022-11-02 21:11:25,816 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1240 transitions. Word has length 19 [2022-11-02 21:11:25,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:25,816 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1240 transitions. [2022-11-02 21:11:25,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:25,817 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1240 transitions. [2022-11-02 21:11:25,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-02 21:11:25,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:25,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:25,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:11:25,820 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:25,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:25,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1396316142, now seen corresponding path program 1 times [2022-11-02 21:11:25,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:25,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688947189] [2022-11-02 21:11:25,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:25,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:25,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:25,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:25,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688947189] [2022-11-02 21:11:25,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688947189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:25,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:25,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:11:25,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663835305] [2022-11-02 21:11:25,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:25,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:11:25,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:25,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:11:25,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:25,905 INFO L87 Difference]: Start difference. First operand 847 states and 1240 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:26,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:26,091 INFO L93 Difference]: Finished difference Result 1342 states and 2023 transitions. [2022-11-02 21:11:26,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:11:26,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-02 21:11:26,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:26,102 INFO L225 Difference]: With dead ends: 1342 [2022-11-02 21:11:26,104 INFO L226 Difference]: Without dead ends: 1342 [2022-11-02 21:11:26,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:26,108 INFO L413 NwaCegarLoop]: 1008 mSDtfsCounter, 339 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:26,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 1625 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:11:26,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2022-11-02 21:11:26,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1035. [2022-11-02 21:11:26,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 855 states have (on average 1.4385964912280702) internal successors, (1230), 857 states have internal predecessors, (1230), 123 states have call successors, (123), 47 states have call predecessors, (123), 56 states have return successors, (205), 130 states have call predecessors, (205), 115 states have call successors, (205) [2022-11-02 21:11:26,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1558 transitions. [2022-11-02 21:11:26,163 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1558 transitions. Word has length 21 [2022-11-02 21:11:26,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:26,163 INFO L495 AbstractCegarLoop]: Abstraction has 1035 states and 1558 transitions. [2022-11-02 21:11:26,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:26,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1558 transitions. [2022-11-02 21:11:26,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 21:11:26,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:26,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:26,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:11:26,167 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:26,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:26,167 INFO L85 PathProgramCache]: Analyzing trace with hash -574680278, now seen corresponding path program 1 times [2022-11-02 21:11:26,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:26,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194686464] [2022-11-02 21:11:26,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:26,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:26,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:26,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:26,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194686464] [2022-11-02 21:11:26,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194686464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:26,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:26,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:11:26,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9706284] [2022-11-02 21:11:26,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:26,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:11:26,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:26,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:11:26,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:11:26,323 INFO L87 Difference]: Start difference. First operand 1035 states and 1558 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:26,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:26,957 INFO L93 Difference]: Finished difference Result 1076 states and 1603 transitions. [2022-11-02 21:11:26,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:11:26,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-02 21:11:26,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:26,964 INFO L225 Difference]: With dead ends: 1076 [2022-11-02 21:11:26,965 INFO L226 Difference]: Without dead ends: 1076 [2022-11-02 21:11:26,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:26,966 INFO L413 NwaCegarLoop]: 721 mSDtfsCounter, 1030 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:26,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 875 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:11:26,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2022-11-02 21:11:27,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1017. [2022-11-02 21:11:27,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 840 states have (on average 1.4321428571428572) internal successors, (1203), 842 states have internal predecessors, (1203), 120 states have call successors, (120), 44 states have call predecessors, (120), 56 states have return successors, (199), 130 states have call predecessors, (199), 112 states have call successors, (199) [2022-11-02 21:11:27,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1522 transitions. [2022-11-02 21:11:27,011 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1522 transitions. Word has length 22 [2022-11-02 21:11:27,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:27,011 INFO L495 AbstractCegarLoop]: Abstraction has 1017 states and 1522 transitions. [2022-11-02 21:11:27,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:27,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1522 transitions. [2022-11-02 21:11:27,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:11:27,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:27,014 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:27,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:11:27,014 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:27,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:27,015 INFO L85 PathProgramCache]: Analyzing trace with hash -401986427, now seen corresponding path program 1 times [2022-11-02 21:11:27,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:27,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504399783] [2022-11-02 21:11:27,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:27,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:27,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:27,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:27,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504399783] [2022-11-02 21:11:27,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504399783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:27,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:27,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:11:27,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908078560] [2022-11-02 21:11:27,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:27,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:11:27,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:27,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:11:27,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:27,059 INFO L87 Difference]: Start difference. First operand 1017 states and 1522 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:27,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:27,143 INFO L93 Difference]: Finished difference Result 1016 states and 1519 transitions. [2022-11-02 21:11:27,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:11:27,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 21:11:27,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:27,149 INFO L225 Difference]: With dead ends: 1016 [2022-11-02 21:11:27,150 INFO L226 Difference]: Without dead ends: 1016 [2022-11-02 21:11:27,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:27,151 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 22 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:27,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1254 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:11:27,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2022-11-02 21:11:27,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1016. [2022-11-02 21:11:27,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 840 states have (on average 1.4297619047619048) internal successors, (1201), 841 states have internal predecessors, (1201), 119 states have call successors, (119), 44 states have call predecessors, (119), 56 states have return successors, (199), 130 states have call predecessors, (199), 112 states have call successors, (199) [2022-11-02 21:11:27,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1519 transitions. [2022-11-02 21:11:27,192 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1519 transitions. Word has length 23 [2022-11-02 21:11:27,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:27,193 INFO L495 AbstractCegarLoop]: Abstraction has 1016 states and 1519 transitions. [2022-11-02 21:11:27,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:27,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1519 transitions. [2022-11-02 21:11:27,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 21:11:27,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:27,196 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:27,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:11:27,197 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:27,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:27,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1030908419, now seen corresponding path program 1 times [2022-11-02 21:11:27,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:27,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186307881] [2022-11-02 21:11:27,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:27,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:27,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:11:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:27,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:27,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:27,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186307881] [2022-11-02 21:11:27,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186307881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:27,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:27,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:11:27,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312817536] [2022-11-02 21:11:27,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:27,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:11:27,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:27,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:11:27,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:11:27,252 INFO L87 Difference]: Start difference. First operand 1016 states and 1519 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:11:27,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:27,679 INFO L93 Difference]: Finished difference Result 1313 states and 1942 transitions. [2022-11-02 21:11:27,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:11:27,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-11-02 21:11:27,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:27,689 INFO L225 Difference]: With dead ends: 1313 [2022-11-02 21:11:27,689 INFO L226 Difference]: Without dead ends: 1313 [2022-11-02 21:11:27,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:27,691 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 771 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:27,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 1365 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:11:27,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2022-11-02 21:11:27,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1073. [2022-11-02 21:11:27,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 888 states have (on average 1.4144144144144144) internal successors, (1256), 894 states have internal predecessors, (1256), 116 states have call successors, (116), 49 states have call predecessors, (116), 68 states have return successors, (178), 129 states have call predecessors, (178), 109 states have call successors, (178) [2022-11-02 21:11:27,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1550 transitions. [2022-11-02 21:11:27,765 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1550 transitions. Word has length 36 [2022-11-02 21:11:27,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:27,766 INFO L495 AbstractCegarLoop]: Abstraction has 1073 states and 1550 transitions. [2022-11-02 21:11:27,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:11:27,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1550 transitions. [2022-11-02 21:11:27,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-02 21:11:27,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:27,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:27,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:11:27,769 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:27,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:27,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1380818810, now seen corresponding path program 1 times [2022-11-02 21:11:27,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:27,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780687374] [2022-11-02 21:11:27,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:27,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:27,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 21:11:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:27,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:27,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:27,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780687374] [2022-11-02 21:11:27,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780687374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:27,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:27,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:11:27,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662445519] [2022-11-02 21:11:27,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:27,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:11:27,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:27,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:11:27,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:11:27,828 INFO L87 Difference]: Start difference. First operand 1073 states and 1550 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:11:28,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:28,135 INFO L93 Difference]: Finished difference Result 844 states and 1225 transitions. [2022-11-02 21:11:28,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:11:28,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-11-02 21:11:28,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:28,141 INFO L225 Difference]: With dead ends: 844 [2022-11-02 21:11:28,141 INFO L226 Difference]: Without dead ends: 844 [2022-11-02 21:11:28,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:28,142 INFO L413 NwaCegarLoop]: 726 mSDtfsCounter, 248 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:28,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 1771 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:11:28,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2022-11-02 21:11:28,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 805. [2022-11-02 21:11:28,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 666 states have (on average 1.4159159159159158) internal successors, (943), 674 states have internal predecessors, (943), 94 states have call successors, (94), 33 states have call predecessors, (94), 44 states have return successors, (121), 97 states have call predecessors, (121), 87 states have call successors, (121) [2022-11-02 21:11:28,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1158 transitions. [2022-11-02 21:11:28,172 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1158 transitions. Word has length 35 [2022-11-02 21:11:28,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:28,173 INFO L495 AbstractCegarLoop]: Abstraction has 805 states and 1158 transitions. [2022-11-02 21:11:28,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:11:28,173 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1158 transitions. [2022-11-02 21:11:28,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-02 21:11:28,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:28,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:28,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 21:11:28,178 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:28,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:28,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1008894010, now seen corresponding path program 1 times [2022-11-02 21:11:28,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:28,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997672702] [2022-11-02 21:11:28,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:28,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:28,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:28,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:28,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997672702] [2022-11-02 21:11:28,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997672702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:28,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:28,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:11:28,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421507284] [2022-11-02 21:11:28,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:28,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:11:28,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:28,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:11:28,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:11:28,293 INFO L87 Difference]: Start difference. First operand 805 states and 1158 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:28,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:28,660 INFO L93 Difference]: Finished difference Result 823 states and 1179 transitions. [2022-11-02 21:11:28,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:11:28,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-02 21:11:28,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:28,666 INFO L225 Difference]: With dead ends: 823 [2022-11-02 21:11:28,666 INFO L226 Difference]: Without dead ends: 823 [2022-11-02 21:11:28,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:28,668 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 695 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:28,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1107 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:11:28,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2022-11-02 21:11:28,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 805. [2022-11-02 21:11:28,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 666 states have (on average 1.412912912912913) internal successors, (941), 674 states have internal predecessors, (941), 94 states have call successors, (94), 33 states have call predecessors, (94), 44 states have return successors, (121), 97 states have call predecessors, (121), 87 states have call successors, (121) [2022-11-02 21:11:28,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1156 transitions. [2022-11-02 21:11:28,698 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1156 transitions. Word has length 32 [2022-11-02 21:11:28,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:28,700 INFO L495 AbstractCegarLoop]: Abstraction has 805 states and 1156 transitions. [2022-11-02 21:11:28,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:28,700 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1156 transitions. [2022-11-02 21:11:28,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 21:11:28,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:28,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:28,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 21:11:28,705 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:28,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:28,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1889417613, now seen corresponding path program 1 times [2022-11-02 21:11:28,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:28,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056825095] [2022-11-02 21:11:28,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:28,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:28,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:11:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:28,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:28,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:28,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056825095] [2022-11-02 21:11:28,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056825095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:28,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:28,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:28,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393616582] [2022-11-02 21:11:28,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:28,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:11:28,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:28,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:11:28,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:28,822 INFO L87 Difference]: Start difference. First operand 805 states and 1156 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:11:29,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:29,559 INFO L93 Difference]: Finished difference Result 714 states and 1034 transitions. [2022-11-02 21:11:29,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:11:29,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-11-02 21:11:29,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:29,566 INFO L225 Difference]: With dead ends: 714 [2022-11-02 21:11:29,566 INFO L226 Difference]: Without dead ends: 714 [2022-11-02 21:11:29,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:11:29,569 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 846 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:29,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 1651 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 21:11:29,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2022-11-02 21:11:29,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 673. [2022-11-02 21:11:29,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 555 states have (on average 1.4108108108108108) internal successors, (783), 562 states have internal predecessors, (783), 86 states have call successors, (86), 26 states have call predecessors, (86), 31 states have return successors, (96), 84 states have call predecessors, (96), 79 states have call successors, (96) [2022-11-02 21:11:29,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 965 transitions. [2022-11-02 21:11:29,595 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 965 transitions. Word has length 36 [2022-11-02 21:11:29,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:29,595 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 965 transitions. [2022-11-02 21:11:29,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:11:29,596 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 965 transitions. [2022-11-02 21:11:29,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-02 21:11:29,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:29,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:29,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 21:11:29,599 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:29,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:29,599 INFO L85 PathProgramCache]: Analyzing trace with hash 138802049, now seen corresponding path program 1 times [2022-11-02 21:11:29,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:29,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989759186] [2022-11-02 21:11:29,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:29,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:29,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:29,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:29,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989759186] [2022-11-02 21:11:29,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989759186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:29,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:29,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:11:29,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405364178] [2022-11-02 21:11:29,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:29,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:11:29,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:29,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:11:29,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:29,654 INFO L87 Difference]: Start difference. First operand 673 states and 965 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:29,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:29,743 INFO L93 Difference]: Finished difference Result 825 states and 1174 transitions. [2022-11-02 21:11:29,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:11:29,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-02 21:11:29,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:29,748 INFO L225 Difference]: With dead ends: 825 [2022-11-02 21:11:29,748 INFO L226 Difference]: Without dead ends: 825 [2022-11-02 21:11:29,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:11:29,749 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 135 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:29,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1375 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:11:29,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2022-11-02 21:11:29,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 724. [2022-11-02 21:11:29,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 602 states have (on average 1.3853820598006645) internal successors, (834), 602 states have internal predecessors, (834), 86 states have call successors, (86), 26 states have call predecessors, (86), 35 states have return successors, (107), 95 states have call predecessors, (107), 79 states have call successors, (107) [2022-11-02 21:11:29,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1027 transitions. [2022-11-02 21:11:29,785 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1027 transitions. Word has length 34 [2022-11-02 21:11:29,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:29,785 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 1027 transitions. [2022-11-02 21:11:29,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:29,786 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1027 transitions. [2022-11-02 21:11:29,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-02 21:11:29,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:29,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:29,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 21:11:29,789 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:29,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:29,790 INFO L85 PathProgramCache]: Analyzing trace with hash -298326081, now seen corresponding path program 1 times [2022-11-02 21:11:29,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:29,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780536019] [2022-11-02 21:11:29,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:29,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:29,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:29,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:29,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780536019] [2022-11-02 21:11:29,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780536019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:29,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:29,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:11:29,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347285384] [2022-11-02 21:11:29,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:29,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:11:29,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:29,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:11:29,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:11:29,905 INFO L87 Difference]: Start difference. First operand 724 states and 1027 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:30,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:30,315 INFO L93 Difference]: Finished difference Result 705 states and 997 transitions. [2022-11-02 21:11:30,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:11:30,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-02 21:11:30,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:30,321 INFO L225 Difference]: With dead ends: 705 [2022-11-02 21:11:30,321 INFO L226 Difference]: Without dead ends: 705 [2022-11-02 21:11:30,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:30,325 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 673 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:30,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 1104 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:11:30,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2022-11-02 21:11:30,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 705. [2022-11-02 21:11:30,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 585 states have (on average 1.3897435897435897) internal successors, (813), 592 states have internal predecessors, (813), 86 states have call successors, (86), 26 states have call predecessors, (86), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-11-02 21:11:30,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 997 transitions. [2022-11-02 21:11:30,367 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 997 transitions. Word has length 34 [2022-11-02 21:11:30,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:30,368 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 997 transitions. [2022-11-02 21:11:30,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:30,368 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 997 transitions. [2022-11-02 21:11:30,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-02 21:11:30,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:30,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:30,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 21:11:30,372 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:30,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:30,373 INFO L85 PathProgramCache]: Analyzing trace with hash 452395651, now seen corresponding path program 1 times [2022-11-02 21:11:30,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:30,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021891672] [2022-11-02 21:11:30,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:30,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:30,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:30,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:30,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021891672] [2022-11-02 21:11:30,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021891672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:30,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:30,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:11:30,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497494015] [2022-11-02 21:11:30,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:30,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:11:30,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:30,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:11:30,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:11:30,538 INFO L87 Difference]: Start difference. First operand 705 states and 997 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:31,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:31,025 INFO L93 Difference]: Finished difference Result 802 states and 1139 transitions. [2022-11-02 21:11:31,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:11:31,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-11-02 21:11:31,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:31,030 INFO L225 Difference]: With dead ends: 802 [2022-11-02 21:11:31,031 INFO L226 Difference]: Without dead ends: 802 [2022-11-02 21:11:31,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:31,032 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 749 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:31,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 1197 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:11:31,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2022-11-02 21:11:31,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 708. [2022-11-02 21:11:31,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 588 states have (on average 1.3894557823129252) internal successors, (817), 595 states have internal predecessors, (817), 86 states have call successors, (86), 26 states have call predecessors, (86), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-11-02 21:11:31,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1001 transitions. [2022-11-02 21:11:31,057 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1001 transitions. Word has length 35 [2022-11-02 21:11:31,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:31,059 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 1001 transitions. [2022-11-02 21:11:31,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:31,059 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1001 transitions. [2022-11-02 21:11:31,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-02 21:11:31,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:31,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:31,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 21:11:31,062 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:31,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:31,063 INFO L85 PathProgramCache]: Analyzing trace with hash 452672481, now seen corresponding path program 1 times [2022-11-02 21:11:31,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:31,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150874922] [2022-11-02 21:11:31,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:31,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:31,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:31,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:31,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150874922] [2022-11-02 21:11:31,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150874922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:31,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:31,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:11:31,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345919785] [2022-11-02 21:11:31,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:31,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:11:31,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:31,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:11:31,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:11:31,211 INFO L87 Difference]: Start difference. First operand 708 states and 1001 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:31,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:31,314 INFO L93 Difference]: Finished difference Result 718 states and 1011 transitions. [2022-11-02 21:11:31,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:11:31,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-11-02 21:11:31,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:31,318 INFO L225 Difference]: With dead ends: 718 [2022-11-02 21:11:31,319 INFO L226 Difference]: Without dead ends: 691 [2022-11-02 21:11:31,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:11:31,320 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 38 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3207 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:31,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3207 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:11:31,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2022-11-02 21:11:31,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2022-11-02 21:11:31,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 571 states have (on average 1.3957968476357268) internal successors, (797), 578 states have internal predecessors, (797), 86 states have call successors, (86), 26 states have call predecessors, (86), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-11-02 21:11:31,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 981 transitions. [2022-11-02 21:11:31,342 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 981 transitions. Word has length 35 [2022-11-02 21:11:31,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:31,342 INFO L495 AbstractCegarLoop]: Abstraction has 691 states and 981 transitions. [2022-11-02 21:11:31,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:11:31,343 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 981 transitions. [2022-11-02 21:11:31,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-02 21:11:31,347 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:31,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:31,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 21:11:31,347 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:31,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:31,348 INFO L85 PathProgramCache]: Analyzing trace with hash 2080196380, now seen corresponding path program 1 times [2022-11-02 21:11:31,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:31,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366906478] [2022-11-02 21:11:31,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:31,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:31,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:11:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:31,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:31,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:31,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366906478] [2022-11-02 21:11:31,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366906478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:31,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:31,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:11:31,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240513622] [2022-11-02 21:11:31,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:31,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:11:31,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:31,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:11:31,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:11:31,404 INFO L87 Difference]: Start difference. First operand 691 states and 981 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:11:31,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:31,768 INFO L93 Difference]: Finished difference Result 727 states and 1043 transitions. [2022-11-02 21:11:31,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:11:31,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-11-02 21:11:31,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:31,773 INFO L225 Difference]: With dead ends: 727 [2022-11-02 21:11:31,773 INFO L226 Difference]: Without dead ends: 725 [2022-11-02 21:11:31,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:31,774 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 153 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:31,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 1553 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:11:31,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2022-11-02 21:11:31,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 705. [2022-11-02 21:11:31,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 585 states have (on average 1.3914529914529914) internal successors, (814), 592 states have internal predecessors, (814), 86 states have call successors, (86), 26 states have call predecessors, (86), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-11-02 21:11:31,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 998 transitions. [2022-11-02 21:11:31,799 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 998 transitions. Word has length 37 [2022-11-02 21:11:31,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:31,800 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 998 transitions. [2022-11-02 21:11:31,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:11:31,803 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 998 transitions. [2022-11-02 21:11:31,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-02 21:11:31,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:31,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:31,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 21:11:31,805 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:31,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:31,806 INFO L85 PathProgramCache]: Analyzing trace with hash -2122568447, now seen corresponding path program 1 times [2022-11-02 21:11:31,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:31,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231819569] [2022-11-02 21:11:31,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:31,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:31,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:11:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:32,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:32,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:32,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231819569] [2022-11-02 21:11:32,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231819569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:32,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:32,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:11:32,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599972101] [2022-11-02 21:11:32,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:32,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:11:32,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:32,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:11:32,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:11:32,033 INFO L87 Difference]: Start difference. First operand 705 states and 998 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:11:32,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:32,615 INFO L93 Difference]: Finished difference Result 725 states and 1040 transitions. [2022-11-02 21:11:32,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:11:32,616 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-11-02 21:11:32,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:32,620 INFO L225 Difference]: With dead ends: 725 [2022-11-02 21:11:32,621 INFO L226 Difference]: Without dead ends: 725 [2022-11-02 21:11:32,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:11:32,622 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 787 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:32,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 1463 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:11:32,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2022-11-02 21:11:32,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 705. [2022-11-02 21:11:32,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 585 states have (on average 1.3897435897435897) internal successors, (813), 592 states have internal predecessors, (813), 86 states have call successors, (86), 26 states have call predecessors, (86), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-11-02 21:11:32,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 997 transitions. [2022-11-02 21:11:32,647 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 997 transitions. Word has length 39 [2022-11-02 21:11:32,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:32,648 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 997 transitions. [2022-11-02 21:11:32,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:11:32,648 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 997 transitions. [2022-11-02 21:11:32,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-02 21:11:32,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:32,651 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:32,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 21:11:32,651 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:32,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:32,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1062055151, now seen corresponding path program 1 times [2022-11-02 21:11:32,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:32,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426649492] [2022-11-02 21:11:32,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:32,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:32,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:11:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:32,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:32,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:32,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426649492] [2022-11-02 21:11:32,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426649492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:32,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:32,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:11:32,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054739529] [2022-11-02 21:11:32,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:32,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:11:32,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:32,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:11:32,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:11:32,781 INFO L87 Difference]: Start difference. First operand 705 states and 997 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:11:33,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:33,365 INFO L93 Difference]: Finished difference Result 741 states and 1059 transitions. [2022-11-02 21:11:33,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 21:11:33,366 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-11-02 21:11:33,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:33,370 INFO L225 Difference]: With dead ends: 741 [2022-11-02 21:11:33,370 INFO L226 Difference]: Without dead ends: 712 [2022-11-02 21:11:33,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:11:33,371 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 158 mSDsluCounter, 3356 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 3977 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:33,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 3977 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:11:33,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2022-11-02 21:11:33,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 696. [2022-11-02 21:11:33,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 578 states have (on average 1.3719723183391004) internal successors, (793), 585 states have internal predecessors, (793), 84 states have call successors, (84), 26 states have call predecessors, (84), 33 states have return successors, (96), 84 states have call predecessors, (96), 77 states have call successors, (96) [2022-11-02 21:11:33,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 973 transitions. [2022-11-02 21:11:33,397 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 973 transitions. Word has length 40 [2022-11-02 21:11:33,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:33,398 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 973 transitions. [2022-11-02 21:11:33,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:11:33,398 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 973 transitions. [2022-11-02 21:11:33,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-02 21:11:33,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:33,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:33,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 21:11:33,401 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:33,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:33,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1438594100, now seen corresponding path program 1 times [2022-11-02 21:11:33,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:33,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790085974] [2022-11-02 21:11:33,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:33,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:33,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-02 21:11:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:33,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-02 21:11:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:33,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:33,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:33,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790085974] [2022-11-02 21:11:33,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790085974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:33,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:33,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:33,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278327752] [2022-11-02 21:11:33,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:33,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:11:33,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:33,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:11:33,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:33,505 INFO L87 Difference]: Start difference. First operand 696 states and 973 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:11:34,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:34,140 INFO L93 Difference]: Finished difference Result 688 states and 980 transitions. [2022-11-02 21:11:34,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:11:34,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-11-02 21:11:34,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:34,145 INFO L225 Difference]: With dead ends: 688 [2022-11-02 21:11:34,145 INFO L226 Difference]: Without dead ends: 688 [2022-11-02 21:11:34,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:11:34,148 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 252 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:34,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 1799 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:11:34,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-11-02 21:11:34,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 672. [2022-11-02 21:11:34,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 557 states have (on average 1.3698384201077198) internal successors, (763), 563 states have internal predecessors, (763), 83 states have call successors, (83), 26 states have call predecessors, (83), 31 states have return successors, (94), 82 states have call predecessors, (94), 77 states have call successors, (94) [2022-11-02 21:11:34,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 940 transitions. [2022-11-02 21:11:34,173 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 940 transitions. Word has length 43 [2022-11-02 21:11:34,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:34,173 INFO L495 AbstractCegarLoop]: Abstraction has 672 states and 940 transitions. [2022-11-02 21:11:34,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:11:34,174 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 940 transitions. [2022-11-02 21:11:34,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-02 21:11:34,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:34,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:34,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 21:11:34,177 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:34,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:34,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1007838826, now seen corresponding path program 1 times [2022-11-02 21:11:34,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:34,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852257450] [2022-11-02 21:11:34,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:34,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:34,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 21:11:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:34,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:11:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:34,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:34,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:34,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852257450] [2022-11-02 21:11:34,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852257450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:34,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:34,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:11:34,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735356827] [2022-11-02 21:11:34,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:34,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:11:34,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:34,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:11:34,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:11:34,579 INFO L87 Difference]: Start difference. First operand 672 states and 940 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:11:35,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:35,674 INFO L93 Difference]: Finished difference Result 699 states and 991 transitions. [2022-11-02 21:11:35,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:11:35,676 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2022-11-02 21:11:35,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:35,680 INFO L225 Difference]: With dead ends: 699 [2022-11-02 21:11:35,680 INFO L226 Difference]: Without dead ends: 686 [2022-11-02 21:11:35,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:11:35,681 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 98 mSDsluCounter, 3850 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 4461 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:35,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 4461 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-02 21:11:35,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2022-11-02 21:11:35,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 670. [2022-11-02 21:11:35,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 556 states have (on average 1.368705035971223) internal successors, (761), 562 states have internal predecessors, (761), 82 states have call successors, (82), 26 states have call predecessors, (82), 31 states have return successors, (93), 81 states have call predecessors, (93), 76 states have call successors, (93) [2022-11-02 21:11:35,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 936 transitions. [2022-11-02 21:11:35,703 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 936 transitions. Word has length 44 [2022-11-02 21:11:35,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:35,703 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 936 transitions. [2022-11-02 21:11:35,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:11:35,703 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 936 transitions. [2022-11-02 21:11:35,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-02 21:11:35,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:35,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:35,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-02 21:11:35,707 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:35,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:35,707 INFO L85 PathProgramCache]: Analyzing trace with hash -938217641, now seen corresponding path program 1 times [2022-11-02 21:11:35,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:35,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912660186] [2022-11-02 21:11:35,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:35,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:35,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-02 21:11:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:36,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:11:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:36,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:36,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:36,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912660186] [2022-11-02 21:11:36,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912660186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:36,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:36,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:11:36,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371575730] [2022-11-02 21:11:36,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:36,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:11:36,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:36,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:11:36,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:11:36,097 INFO L87 Difference]: Start difference. First operand 670 states and 936 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:11:37,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:37,228 INFO L93 Difference]: Finished difference Result 696 states and 986 transitions. [2022-11-02 21:11:37,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:11:37,229 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-11-02 21:11:37,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:37,232 INFO L225 Difference]: With dead ends: 696 [2022-11-02 21:11:37,232 INFO L226 Difference]: Without dead ends: 683 [2022-11-02 21:11:37,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:11:37,233 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 98 mSDsluCounter, 3807 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 4410 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:37,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 4410 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-02 21:11:37,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2022-11-02 21:11:37,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 667. [2022-11-02 21:11:37,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 554 states have (on average 1.3682310469314078) internal successors, (758), 560 states have internal predecessors, (758), 81 states have call successors, (81), 26 states have call predecessors, (81), 31 states have return successors, (92), 80 states have call predecessors, (92), 75 states have call successors, (92) [2022-11-02 21:11:37,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 931 transitions. [2022-11-02 21:11:37,255 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 931 transitions. Word has length 43 [2022-11-02 21:11:37,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:37,255 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 931 transitions. [2022-11-02 21:11:37,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:11:37,256 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 931 transitions. [2022-11-02 21:11:37,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-02 21:11:37,258 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:37,258 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:37,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-02 21:11:37,259 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:37,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:37,259 INFO L85 PathProgramCache]: Analyzing trace with hash 590562129, now seen corresponding path program 1 times [2022-11-02 21:11:37,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:37,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572278220] [2022-11-02 21:11:37,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:37,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:37,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:11:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:37,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:11:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:37,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:37,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:37,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572278220] [2022-11-02 21:11:37,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572278220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:37,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:37,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-02 21:11:37,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215022592] [2022-11-02 21:11:37,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:37,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:11:37,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:37,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:11:37,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:11:37,586 INFO L87 Difference]: Start difference. First operand 667 states and 931 transitions. Second operand has 13 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:39,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:39,031 INFO L93 Difference]: Finished difference Result 716 states and 1006 transitions. [2022-11-02 21:11:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:11:39,032 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2022-11-02 21:11:39,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:39,036 INFO L225 Difference]: With dead ends: 716 [2022-11-02 21:11:39,036 INFO L226 Difference]: Without dead ends: 699 [2022-11-02 21:11:39,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2022-11-02 21:11:39,037 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 244 mSDsluCounter, 4540 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 5133 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:39,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 5133 Invalid, 1717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1552 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-02 21:11:39,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-11-02 21:11:39,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 665. [2022-11-02 21:11:39,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 553 states have (on average 1.3670886075949367) internal successors, (756), 559 states have internal predecessors, (756), 80 states have call successors, (80), 26 states have call predecessors, (80), 31 states have return successors, (91), 79 states have call predecessors, (91), 74 states have call successors, (91) [2022-11-02 21:11:39,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 927 transitions. [2022-11-02 21:11:39,066 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 927 transitions. Word has length 47 [2022-11-02 21:11:39,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:39,067 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 927 transitions. [2022-11-02 21:11:39,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:39,067 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 927 transitions. [2022-11-02 21:11:39,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-02 21:11:39,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:39,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:39,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-02 21:11:39,073 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:39,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:39,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1771938136, now seen corresponding path program 1 times [2022-11-02 21:11:39,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:39,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232591363] [2022-11-02 21:11:39,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:39,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:39,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-02 21:11:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:39,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:11:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:39,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:39,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:39,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232591363] [2022-11-02 21:11:39,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232591363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:39,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:39,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-02 21:11:39,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436876763] [2022-11-02 21:11:39,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:39,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:11:39,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:39,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:11:39,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:11:39,433 INFO L87 Difference]: Start difference. First operand 665 states and 927 transitions. Second operand has 13 states, 12 states have (on average 3.25) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:40,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:40,822 INFO L93 Difference]: Finished difference Result 714 states and 1002 transitions. [2022-11-02 21:11:40,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:11:40,823 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.25) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-11-02 21:11:40,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:40,827 INFO L225 Difference]: With dead ends: 714 [2022-11-02 21:11:40,827 INFO L226 Difference]: Without dead ends: 696 [2022-11-02 21:11:40,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2022-11-02 21:11:40,828 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 171 mSDsluCounter, 4419 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:40,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 4996 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-02 21:11:40,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-11-02 21:11:40,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 664. [2022-11-02 21:11:40,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 552 states have (on average 1.3496376811594204) internal successors, (745), 558 states have internal predecessors, (745), 80 states have call successors, (80), 26 states have call predecessors, (80), 31 states have return successors, (91), 79 states have call predecessors, (91), 74 states have call successors, (91) [2022-11-02 21:11:40,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 916 transitions. [2022-11-02 21:11:40,850 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 916 transitions. Word has length 44 [2022-11-02 21:11:40,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:40,850 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 916 transitions. [2022-11-02 21:11:40,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.25) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:40,851 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 916 transitions. [2022-11-02 21:11:40,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-02 21:11:40,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:40,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:40,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-02 21:11:40,854 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:40,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:40,854 INFO L85 PathProgramCache]: Analyzing trace with hash 345167796, now seen corresponding path program 1 times [2022-11-02 21:11:40,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:40,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968419213] [2022-11-02 21:11:40,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:40,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:40,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-02 21:11:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:40,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:40,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:40,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968419213] [2022-11-02 21:11:40,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968419213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:40,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:40,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:11:40,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977340881] [2022-11-02 21:11:40,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:40,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:11:40,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:40,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:11:40,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:11:40,982 INFO L87 Difference]: Start difference. First operand 664 states and 916 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:11:41,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:41,476 INFO L93 Difference]: Finished difference Result 695 states and 971 transitions. [2022-11-02 21:11:41,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 21:11:41,477 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-11-02 21:11:41,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:41,481 INFO L225 Difference]: With dead ends: 695 [2022-11-02 21:11:41,481 INFO L226 Difference]: Without dead ends: 668 [2022-11-02 21:11:41,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:11:41,482 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 158 mSDsluCounter, 3094 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 3681 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:41,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 3681 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:11:41,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2022-11-02 21:11:41,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 652. [2022-11-02 21:11:41,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 543 states have (on average 1.3443830570902393) internal successors, (730), 549 states have internal predecessors, (730), 77 states have call successors, (77), 26 states have call predecessors, (77), 31 states have return successors, (88), 76 states have call predecessors, (88), 71 states have call successors, (88) [2022-11-02 21:11:41,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 895 transitions. [2022-11-02 21:11:41,504 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 895 transitions. Word has length 44 [2022-11-02 21:11:41,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:41,505 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 895 transitions. [2022-11-02 21:11:41,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:11:41,505 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 895 transitions. [2022-11-02 21:11:41,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-02 21:11:41,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:41,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:41,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-02 21:11:41,511 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:41,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:41,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1307777067, now seen corresponding path program 1 times [2022-11-02 21:11:41,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:41,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894000322] [2022-11-02 21:11:41,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:41,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:41,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-02 21:11:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:41,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-02 21:11:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:41,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:41,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:41,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894000322] [2022-11-02 21:11:41,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894000322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:41,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:41,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:11:41,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933560664] [2022-11-02 21:11:41,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:41,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:11:41,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:41,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:11:41,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:11:41,606 INFO L87 Difference]: Start difference. First operand 652 states and 895 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:42,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:42,111 INFO L93 Difference]: Finished difference Result 703 states and 999 transitions. [2022-11-02 21:11:42,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 21:11:42,112 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-11-02 21:11:42,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:42,118 INFO L225 Difference]: With dead ends: 703 [2022-11-02 21:11:42,118 INFO L226 Difference]: Without dead ends: 703 [2022-11-02 21:11:42,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:11:42,119 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 225 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:42,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1842 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:11:42,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2022-11-02 21:11:42,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 659. [2022-11-02 21:11:42,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 548 states have (on average 1.344890510948905) internal successors, (737), 555 states have internal predecessors, (737), 78 states have call successors, (78), 26 states have call predecessors, (78), 32 states have return successors, (95), 77 states have call predecessors, (95), 72 states have call successors, (95) [2022-11-02 21:11:42,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 910 transitions. [2022-11-02 21:11:42,142 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 910 transitions. Word has length 45 [2022-11-02 21:11:42,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:42,142 INFO L495 AbstractCegarLoop]: Abstraction has 659 states and 910 transitions. [2022-11-02 21:11:42,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:42,143 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 910 transitions. [2022-11-02 21:11:42,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-02 21:11:42,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:42,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:42,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-02 21:11:42,146 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:42,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:42,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1817250157, now seen corresponding path program 1 times [2022-11-02 21:11:42,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:42,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031901239] [2022-11-02 21:11:42,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:42,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:42,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-02 21:11:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:42,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-02 21:11:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:42,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:42,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:42,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031901239] [2022-11-02 21:11:42,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031901239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:42,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:42,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:11:42,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812522087] [2022-11-02 21:11:42,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:42,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:11:42,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:42,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:11:42,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:11:42,273 INFO L87 Difference]: Start difference. First operand 659 states and 910 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:42,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:42,915 INFO L93 Difference]: Finished difference Result 694 states and 975 transitions. [2022-11-02 21:11:42,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:11:42,916 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-11-02 21:11:42,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:42,920 INFO L225 Difference]: With dead ends: 694 [2022-11-02 21:11:42,920 INFO L226 Difference]: Without dead ends: 677 [2022-11-02 21:11:42,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:11:42,921 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 161 mSDsluCounter, 3247 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 3814 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:42,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 3814 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:11:42,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2022-11-02 21:11:42,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 657. [2022-11-02 21:11:42,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 547 states have (on average 1.3436928702010968) internal successors, (735), 554 states have internal predecessors, (735), 77 states have call successors, (77), 26 states have call predecessors, (77), 32 states have return successors, (94), 76 states have call predecessors, (94), 71 states have call successors, (94) [2022-11-02 21:11:42,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 906 transitions. [2022-11-02 21:11:42,958 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 906 transitions. Word has length 45 [2022-11-02 21:11:42,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:42,959 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 906 transitions. [2022-11-02 21:11:42,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:42,960 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 906 transitions. [2022-11-02 21:11:42,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-02 21:11:42,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:42,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:42,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-02 21:11:42,966 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:42,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:42,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1530884490, now seen corresponding path program 1 times [2022-11-02 21:11:42,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:42,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467701059] [2022-11-02 21:11:42,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:42,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:43,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-02 21:11:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:43,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:43,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:43,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467701059] [2022-11-02 21:11:43,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467701059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:43,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:43,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:11:43,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187510144] [2022-11-02 21:11:43,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:43,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:11:43,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:43,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:11:43,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:11:43,121 INFO L87 Difference]: Start difference. First operand 657 states and 906 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:11:43,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:43,591 INFO L93 Difference]: Finished difference Result 701 states and 985 transitions. [2022-11-02 21:11:43,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 21:11:43,592 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-11-02 21:11:43,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:43,596 INFO L225 Difference]: With dead ends: 701 [2022-11-02 21:11:43,596 INFO L226 Difference]: Without dead ends: 669 [2022-11-02 21:11:43,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:11:43,598 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 166 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 3532 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:43,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 3532 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:11:43,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2022-11-02 21:11:43,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 649. [2022-11-02 21:11:43,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 541 states have (on average 1.3364140480591498) internal successors, (723), 548 states have internal predecessors, (723), 75 states have call successors, (75), 26 states have call predecessors, (75), 32 states have return successors, (92), 74 states have call predecessors, (92), 69 states have call successors, (92) [2022-11-02 21:11:43,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 890 transitions. [2022-11-02 21:11:43,619 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 890 transitions. Word has length 45 [2022-11-02 21:11:43,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:43,619 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 890 transitions. [2022-11-02 21:11:43,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:11:43,620 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 890 transitions. [2022-11-02 21:11:43,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-02 21:11:43,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:43,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:43,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-02 21:11:43,623 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:43,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:43,623 INFO L85 PathProgramCache]: Analyzing trace with hash 877591917, now seen corresponding path program 1 times [2022-11-02 21:11:43,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:43,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023277916] [2022-11-02 21:11:43,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:43,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:43,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-02 21:11:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:43,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:11:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:43,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:43,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:43,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023277916] [2022-11-02 21:11:43,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023277916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:43,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:43,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 21:11:43,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74052691] [2022-11-02 21:11:43,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:43,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:11:43,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:43,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:11:43,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:11:43,935 INFO L87 Difference]: Start difference. First operand 649 states and 890 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:11:45,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:45,085 INFO L93 Difference]: Finished difference Result 681 states and 952 transitions. [2022-11-02 21:11:45,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:11:45,086 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2022-11-02 21:11:45,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:45,090 INFO L225 Difference]: With dead ends: 681 [2022-11-02 21:11:45,091 INFO L226 Difference]: Without dead ends: 666 [2022-11-02 21:11:45,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:11:45,092 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 110 mSDsluCounter, 3773 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 4317 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:45,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 4317 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 21:11:45,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-11-02 21:11:45,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 646. [2022-11-02 21:11:45,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 539 states have (on average 1.3358070500927643) internal successors, (720), 546 states have internal predecessors, (720), 74 states have call successors, (74), 26 states have call predecessors, (74), 32 states have return successors, (91), 73 states have call predecessors, (91), 68 states have call successors, (91) [2022-11-02 21:11:45,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 885 transitions. [2022-11-02 21:11:45,129 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 885 transitions. Word has length 46 [2022-11-02 21:11:45,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:45,130 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 885 transitions. [2022-11-02 21:11:45,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:11:45,130 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 885 transitions. [2022-11-02 21:11:45,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-02 21:11:45,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:45,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:45,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-02 21:11:45,133 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:45,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:45,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1506824031, now seen corresponding path program 1 times [2022-11-02 21:11:45,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:45,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007444065] [2022-11-02 21:11:45,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:45,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:45,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-02 21:11:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:45,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 21:11:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:45,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:45,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:45,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007444065] [2022-11-02 21:11:45,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007444065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:45,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:45,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:11:45,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934851563] [2022-11-02 21:11:45,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:45,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:11:45,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:45,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:11:45,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:11:45,231 INFO L87 Difference]: Start difference. First operand 646 states and 885 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:45,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:45,710 INFO L93 Difference]: Finished difference Result 678 states and 966 transitions. [2022-11-02 21:11:45,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:11:45,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2022-11-02 21:11:45,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:45,715 INFO L225 Difference]: With dead ends: 678 [2022-11-02 21:11:45,716 INFO L226 Difference]: Without dead ends: 676 [2022-11-02 21:11:45,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:11:45,717 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 187 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 2309 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:45,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 2309 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:11:45,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2022-11-02 21:11:45,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 650. [2022-11-02 21:11:45,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 541 states have (on average 1.33456561922366) internal successors, (722), 550 states have internal predecessors, (722), 74 states have call successors, (74), 26 states have call predecessors, (74), 34 states have return successors, (107), 73 states have call predecessors, (107), 68 states have call successors, (107) [2022-11-02 21:11:45,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 903 transitions. [2022-11-02 21:11:45,738 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 903 transitions. Word has length 46 [2022-11-02 21:11:45,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:45,739 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 903 transitions. [2022-11-02 21:11:45,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:45,739 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 903 transitions. [2022-11-02 21:11:45,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-02 21:11:45,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:45,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:45,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-02 21:11:45,743 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:45,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:45,743 INFO L85 PathProgramCache]: Analyzing trace with hash -495181895, now seen corresponding path program 1 times [2022-11-02 21:11:45,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:45,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571879550] [2022-11-02 21:11:45,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:45,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:46,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-02 21:11:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:46,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:11:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:46,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:46,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:46,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571879550] [2022-11-02 21:11:46,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571879550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:46,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:46,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:11:46,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700203819] [2022-11-02 21:11:46,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:46,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:11:46,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:46,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:11:46,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:11:46,175 INFO L87 Difference]: Start difference. First operand 650 states and 903 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:11:47,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:47,458 INFO L93 Difference]: Finished difference Result 682 states and 965 transitions. [2022-11-02 21:11:47,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:11:47,459 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2022-11-02 21:11:47,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:47,464 INFO L225 Difference]: With dead ends: 682 [2022-11-02 21:11:47,464 INFO L226 Difference]: Without dead ends: 661 [2022-11-02 21:11:47,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:11:47,467 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 123 mSDsluCounter, 4170 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 4712 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:47,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 4712 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 21:11:47,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-11-02 21:11:47,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 641. [2022-11-02 21:11:47,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 534 states have (on average 1.3352059925093633) internal successors, (713), 543 states have internal predecessors, (713), 72 states have call successors, (72), 26 states have call predecessors, (72), 34 states have return successors, (105), 71 states have call predecessors, (105), 66 states have call successors, (105) [2022-11-02 21:11:47,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 890 transitions. [2022-11-02 21:11:47,491 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 890 transitions. Word has length 54 [2022-11-02 21:11:47,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:47,491 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 890 transitions. [2022-11-02 21:11:47,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:11:47,492 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 890 transitions. [2022-11-02 21:11:47,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-02 21:11:47,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:47,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:47,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-02 21:11:47,495 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:47,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:47,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1741355878, now seen corresponding path program 1 times [2022-11-02 21:11:47,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:47,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049876466] [2022-11-02 21:11:47,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:47,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:47,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-02 21:11:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:47,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:11:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:47,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:47,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:47,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049876466] [2022-11-02 21:11:47,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049876466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:47,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:47,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:11:47,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769266369] [2022-11-02 21:11:47,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:47,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:11:47,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:47,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:11:47,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:11:47,832 INFO L87 Difference]: Start difference. First operand 641 states and 890 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:11:49,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:49,089 INFO L93 Difference]: Finished difference Result 673 states and 951 transitions. [2022-11-02 21:11:49,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:11:49,090 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2022-11-02 21:11:49,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:49,093 INFO L225 Difference]: With dead ends: 673 [2022-11-02 21:11:49,093 INFO L226 Difference]: Without dead ends: 658 [2022-11-02 21:11:49,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:11:49,094 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 123 mSDsluCounter, 4077 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 4607 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:49,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 4607 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 21:11:49,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-11-02 21:11:49,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 638. [2022-11-02 21:11:49,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 532 states have (on average 1.3345864661654134) internal successors, (710), 541 states have internal predecessors, (710), 71 states have call successors, (71), 26 states have call predecessors, (71), 34 states have return successors, (104), 70 states have call predecessors, (104), 65 states have call successors, (104) [2022-11-02 21:11:49,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 885 transitions. [2022-11-02 21:11:49,121 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 885 transitions. Word has length 48 [2022-11-02 21:11:49,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:49,122 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 885 transitions. [2022-11-02 21:11:49,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:11:49,122 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 885 transitions. [2022-11-02 21:11:49,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-02 21:11:49,125 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:49,125 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:49,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-02 21:11:49,125 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:49,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:49,126 INFO L85 PathProgramCache]: Analyzing trace with hash -201116362, now seen corresponding path program 1 times [2022-11-02 21:11:49,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:49,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222747408] [2022-11-02 21:11:49,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:49,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:49,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-02 21:11:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:49,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:11:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:49,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:49,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:49,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222747408] [2022-11-02 21:11:49,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222747408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:49,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:49,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:11:49,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3965706] [2022-11-02 21:11:49,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:49,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:11:49,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:49,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:11:49,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:11:49,514 INFO L87 Difference]: Start difference. First operand 638 states and 885 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:11:50,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:50,693 INFO L93 Difference]: Finished difference Result 670 states and 946 transitions. [2022-11-02 21:11:50,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:11:50,694 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2022-11-02 21:11:50,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:50,697 INFO L225 Difference]: With dead ends: 670 [2022-11-02 21:11:50,697 INFO L226 Difference]: Without dead ends: 655 [2022-11-02 21:11:50,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:11:50,698 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 123 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 4547 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:50,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 4547 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 21:11:50,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2022-11-02 21:11:50,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 635. [2022-11-02 21:11:50,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 530 states have (on average 1.3339622641509434) internal successors, (707), 539 states have internal predecessors, (707), 70 states have call successors, (70), 26 states have call predecessors, (70), 34 states have return successors, (103), 69 states have call predecessors, (103), 64 states have call successors, (103) [2022-11-02 21:11:50,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 880 transitions. [2022-11-02 21:11:50,714 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 880 transitions. Word has length 47 [2022-11-02 21:11:50,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:50,714 INFO L495 AbstractCegarLoop]: Abstraction has 635 states and 880 transitions. [2022-11-02 21:11:50,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:11:50,715 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 880 transitions. [2022-11-02 21:11:50,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-02 21:11:50,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:50,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:50,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-02 21:11:50,717 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:50,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:50,718 INFO L85 PathProgramCache]: Analyzing trace with hash -109408180, now seen corresponding path program 1 times [2022-11-02 21:11:50,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:50,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446240542] [2022-11-02 21:11:50,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:50,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:50,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:50,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:11:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:50,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-02 21:11:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:50,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:11:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:50,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:50,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:50,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446240542] [2022-11-02 21:11:50,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446240542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:50,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:50,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:50,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151839201] [2022-11-02 21:11:50,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:50,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:11:50,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:50,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:11:50,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:50,810 INFO L87 Difference]: Start difference. First operand 635 states and 880 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 21:11:51,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:51,283 INFO L93 Difference]: Finished difference Result 746 states and 1040 transitions. [2022-11-02 21:11:51,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:11:51,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2022-11-02 21:11:51,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:51,287 INFO L225 Difference]: With dead ends: 746 [2022-11-02 21:11:51,287 INFO L226 Difference]: Without dead ends: 746 [2022-11-02 21:11:51,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:11:51,288 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 315 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:51,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 1319 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:11:51,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-11-02 21:11:51,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 699. [2022-11-02 21:11:51,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 584 states have (on average 1.332191780821918) internal successors, (778), 593 states have internal predecessors, (778), 73 states have call successors, (73), 30 states have call predecessors, (73), 41 states have return successors, (112), 75 states have call predecessors, (112), 68 states have call successors, (112) [2022-11-02 21:11:51,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 963 transitions. [2022-11-02 21:11:51,307 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 963 transitions. Word has length 50 [2022-11-02 21:11:51,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:51,307 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 963 transitions. [2022-11-02 21:11:51,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 21:11:51,307 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 963 transitions. [2022-11-02 21:11:51,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-02 21:11:51,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:51,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:51,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-02 21:11:51,310 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:51,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:51,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1366311556, now seen corresponding path program 1 times [2022-11-02 21:11:51,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:51,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166744796] [2022-11-02 21:11:51,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:51,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:51,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:51,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-02 21:11:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:51,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-02 21:11:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:51,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:11:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:51,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:51,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:51,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166744796] [2022-11-02 21:11:51,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166744796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:51,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:51,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-02 21:11:51,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025750826] [2022-11-02 21:11:51,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:51,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-02 21:11:51,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:51,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-02 21:11:51,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:11:51,575 INFO L87 Difference]: Start difference. First operand 699 states and 963 transitions. Second operand has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:11:52,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:52,865 INFO L93 Difference]: Finished difference Result 760 states and 1055 transitions. [2022-11-02 21:11:52,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 21:11:52,865 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 52 [2022-11-02 21:11:52,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:52,868 INFO L225 Difference]: With dead ends: 760 [2022-11-02 21:11:52,869 INFO L226 Difference]: Without dead ends: 743 [2022-11-02 21:11:52,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-11-02 21:11:52,869 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 245 mSDsluCounter, 4386 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 4895 SdHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:52,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 4895 Invalid, 1866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 21:11:52,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2022-11-02 21:11:52,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 697. [2022-11-02 21:11:52,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 583 states have (on average 1.3310463121783878) internal successors, (776), 592 states have internal predecessors, (776), 72 states have call successors, (72), 30 states have call predecessors, (72), 41 states have return successors, (111), 74 states have call predecessors, (111), 67 states have call successors, (111) [2022-11-02 21:11:52,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 959 transitions. [2022-11-02 21:11:52,888 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 959 transitions. Word has length 52 [2022-11-02 21:11:52,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:52,888 INFO L495 AbstractCegarLoop]: Abstraction has 697 states and 959 transitions. [2022-11-02 21:11:52,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:11:52,888 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 959 transitions. [2022-11-02 21:11:52,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-02 21:11:52,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:52,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:52,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-02 21:11:52,891 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:52,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:52,891 INFO L85 PathProgramCache]: Analyzing trace with hash 484610396, now seen corresponding path program 1 times [2022-11-02 21:11:52,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:52,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915479509] [2022-11-02 21:11:52,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:52,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:53,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:11:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:53,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:11:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:53,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:53,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:53,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915479509] [2022-11-02 21:11:53,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915479509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:53,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:53,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-02 21:11:53,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063931893] [2022-11-02 21:11:53,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:53,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:11:53,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:53,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:11:53,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:11:53,110 INFO L87 Difference]: Start difference. First operand 697 states and 959 transitions. Second operand has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:54,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:54,252 INFO L93 Difference]: Finished difference Result 742 states and 1034 transitions. [2022-11-02 21:11:54,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:11:54,253 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2022-11-02 21:11:54,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:54,256 INFO L225 Difference]: With dead ends: 742 [2022-11-02 21:11:54,256 INFO L226 Difference]: Without dead ends: 725 [2022-11-02 21:11:54,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2022-11-02 21:11:54,257 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 238 mSDsluCounter, 3331 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 3824 SdHoareTripleChecker+Invalid, 1425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:54,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 3824 Invalid, 1425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-02 21:11:54,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2022-11-02 21:11:54,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 695. [2022-11-02 21:11:54,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 582 states have (on average 1.3298969072164948) internal successors, (774), 591 states have internal predecessors, (774), 71 states have call successors, (71), 30 states have call predecessors, (71), 41 states have return successors, (110), 73 states have call predecessors, (110), 66 states have call successors, (110) [2022-11-02 21:11:54,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 955 transitions. [2022-11-02 21:11:54,279 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 955 transitions. Word has length 48 [2022-11-02 21:11:54,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:54,279 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 955 transitions. [2022-11-02 21:11:54,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:54,280 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 955 transitions. [2022-11-02 21:11:54,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-02 21:11:54,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:54,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:54,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-02 21:11:54,283 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:54,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:54,284 INFO L85 PathProgramCache]: Analyzing trace with hash 2066330974, now seen corresponding path program 1 times [2022-11-02 21:11:54,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:54,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618608718] [2022-11-02 21:11:54,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:54,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:54,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-02 21:11:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:54,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:11:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:54,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:54,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:54,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618608718] [2022-11-02 21:11:54,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618608718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:54,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:54,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:54,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054520869] [2022-11-02 21:11:54,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:54,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:11:54,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:54,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:11:54,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:54,346 INFO L87 Difference]: Start difference. First operand 695 states and 955 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:54,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:54,662 INFO L93 Difference]: Finished difference Result 654 states and 879 transitions. [2022-11-02 21:11:54,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:11:54,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2022-11-02 21:11:54,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:54,671 INFO L225 Difference]: With dead ends: 654 [2022-11-02 21:11:54,674 INFO L226 Difference]: Without dead ends: 651 [2022-11-02 21:11:54,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:11:54,675 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 174 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:54,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1242 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:11:54,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2022-11-02 21:11:54,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 622. [2022-11-02 21:11:54,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 525 states have (on average 1.3257142857142856) internal successors, (696), 532 states have internal predecessors, (696), 62 states have call successors, (62), 27 states have call predecessors, (62), 34 states have return successors, (74), 62 states have call predecessors, (74), 57 states have call successors, (74) [2022-11-02 21:11:54,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 832 transitions. [2022-11-02 21:11:54,691 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 832 transitions. Word has length 48 [2022-11-02 21:11:54,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:54,691 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 832 transitions. [2022-11-02 21:11:54,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:54,692 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 832 transitions. [2022-11-02 21:11:54,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-02 21:11:54,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:54,694 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:54,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-02 21:11:54,695 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:54,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:54,695 INFO L85 PathProgramCache]: Analyzing trace with hash -642740247, now seen corresponding path program 1 times [2022-11-02 21:11:54,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:54,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200577226] [2022-11-02 21:11:54,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:54,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:54,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-02 21:11:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:54,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-02 21:11:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:54,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:11:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:54,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:54,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:54,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200577226] [2022-11-02 21:11:54,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200577226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:54,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:54,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-02 21:11:54,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116638145] [2022-11-02 21:11:54,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:54,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-02 21:11:54,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:54,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-02 21:11:54,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:11:54,973 INFO L87 Difference]: Start difference. First operand 622 states and 832 transitions. Second operand has 14 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:11:56,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:56,034 INFO L93 Difference]: Finished difference Result 649 states and 866 transitions. [2022-11-02 21:11:56,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 21:11:56,035 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 51 [2022-11-02 21:11:56,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:56,038 INFO L225 Difference]: With dead ends: 649 [2022-11-02 21:11:56,038 INFO L226 Difference]: Without dead ends: 632 [2022-11-02 21:11:56,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-11-02 21:11:56,039 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 328 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 3631 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:56,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 3631 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-02 21:11:56,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2022-11-02 21:11:56,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 620. [2022-11-02 21:11:56,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 524 states have (on average 1.3244274809160306) internal successors, (694), 531 states have internal predecessors, (694), 61 states have call successors, (61), 27 states have call predecessors, (61), 34 states have return successors, (73), 61 states have call predecessors, (73), 56 states have call successors, (73) [2022-11-02 21:11:56,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 828 transitions. [2022-11-02 21:11:56,053 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 828 transitions. Word has length 51 [2022-11-02 21:11:56,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:56,054 INFO L495 AbstractCegarLoop]: Abstraction has 620 states and 828 transitions. [2022-11-02 21:11:56,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:11:56,054 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 828 transitions. [2022-11-02 21:11:56,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-02 21:11:56,056 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:56,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:56,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-02 21:11:56,058 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:56,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:56,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1797533827, now seen corresponding path program 1 times [2022-11-02 21:11:56,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:56,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560448309] [2022-11-02 21:11:56,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:56,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:56,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-02 21:11:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:56,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 21:11:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:56,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:56,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:56,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560448309] [2022-11-02 21:11:56,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560448309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:56,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:56,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:11:56,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901079382] [2022-11-02 21:11:56,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:56,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:11:56,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:56,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:11:56,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:11:56,154 INFO L87 Difference]: Start difference. First operand 620 states and 828 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:56,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:56,603 INFO L93 Difference]: Finished difference Result 688 states and 913 transitions. [2022-11-02 21:11:56,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:11:56,605 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2022-11-02 21:11:56,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:56,607 INFO L225 Difference]: With dead ends: 688 [2022-11-02 21:11:56,610 INFO L226 Difference]: Without dead ends: 688 [2022-11-02 21:11:56,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:11:56,612 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 260 mSDsluCounter, 1862 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 2383 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:56,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 2383 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:11:56,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-11-02 21:11:56,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 626. [2022-11-02 21:11:56,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 529 states have (on average 1.3232514177693762) internal successors, (700), 536 states have internal predecessors, (700), 62 states have call successors, (62), 27 states have call predecessors, (62), 34 states have return successors, (74), 62 states have call predecessors, (74), 57 states have call successors, (74) [2022-11-02 21:11:56,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 836 transitions. [2022-11-02 21:11:56,634 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 836 transitions. Word has length 50 [2022-11-02 21:11:56,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:56,634 INFO L495 AbstractCegarLoop]: Abstraction has 626 states and 836 transitions. [2022-11-02 21:11:56,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:56,635 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 836 transitions. [2022-11-02 21:11:56,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-02 21:11:56,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:56,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:56,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-02 21:11:56,637 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:56,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:56,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1910633636, now seen corresponding path program 1 times [2022-11-02 21:11:56,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:56,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685937025] [2022-11-02 21:11:56,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:56,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:56,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-02 21:11:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:56,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-02 21:11:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:56,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-02 21:11:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:56,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:11:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:56,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:56,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:56,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685937025] [2022-11-02 21:11:56,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685937025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:56,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:56,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:11:56,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088653868] [2022-11-02 21:11:56,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:56,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:11:56,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:56,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:11:56,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:11:56,763 INFO L87 Difference]: Start difference. First operand 626 states and 836 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-02 21:11:57,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:57,274 INFO L93 Difference]: Finished difference Result 638 states and 853 transitions. [2022-11-02 21:11:57,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:11:57,275 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 53 [2022-11-02 21:11:57,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:57,277 INFO L225 Difference]: With dead ends: 638 [2022-11-02 21:11:57,277 INFO L226 Difference]: Without dead ends: 638 [2022-11-02 21:11:57,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:11:57,278 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 197 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:57,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 1425 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:11:57,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-11-02 21:11:57,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 626. [2022-11-02 21:11:57,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 529 states have (on average 1.3194706994328922) internal successors, (698), 536 states have internal predecessors, (698), 62 states have call successors, (62), 27 states have call predecessors, (62), 34 states have return successors, (74), 62 states have call predecessors, (74), 57 states have call successors, (74) [2022-11-02 21:11:57,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 834 transitions. [2022-11-02 21:11:57,292 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 834 transitions. Word has length 53 [2022-11-02 21:11:57,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:57,293 INFO L495 AbstractCegarLoop]: Abstraction has 626 states and 834 transitions. [2022-11-02 21:11:57,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-02 21:11:57,293 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 834 transitions. [2022-11-02 21:11:57,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-02 21:11:57,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:57,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:57,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-02 21:11:57,296 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:57,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:57,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1007488154, now seen corresponding path program 1 times [2022-11-02 21:11:57,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:57,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738649563] [2022-11-02 21:11:57,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:57,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:57,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:57,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-02 21:11:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:57,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-02 21:11:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:57,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:57,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:57,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738649563] [2022-11-02 21:11:57,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738649563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:57,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:57,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:11:57,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745615281] [2022-11-02 21:11:57,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:57,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:11:57,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:57,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:11:57,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:11:57,418 INFO L87 Difference]: Start difference. First operand 626 states and 834 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:58,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:58,041 INFO L93 Difference]: Finished difference Result 669 states and 890 transitions. [2022-11-02 21:11:58,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:11:58,041 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2022-11-02 21:11:58,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:58,043 INFO L225 Difference]: With dead ends: 669 [2022-11-02 21:11:58,043 INFO L226 Difference]: Without dead ends: 618 [2022-11-02 21:11:58,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:11:58,044 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 185 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:58,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 3101 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:11:58,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2022-11-02 21:11:58,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 599. [2022-11-02 21:11:58,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 507 states have (on average 1.3057199211045365) internal successors, (662), 514 states have internal predecessors, (662), 57 states have call successors, (57), 27 states have call predecessors, (57), 34 states have return successors, (68), 57 states have call predecessors, (68), 52 states have call successors, (68) [2022-11-02 21:11:58,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 787 transitions. [2022-11-02 21:11:58,059 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 787 transitions. Word has length 51 [2022-11-02 21:11:58,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:58,060 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 787 transitions. [2022-11-02 21:11:58,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:58,060 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 787 transitions. [2022-11-02 21:11:58,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-02 21:11:58,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:58,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:58,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-02 21:11:58,063 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:58,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:58,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1364251108, now seen corresponding path program 1 times [2022-11-02 21:11:58,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:58,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067807884] [2022-11-02 21:11:58,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:58,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:58,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:58,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-02 21:11:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:58,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-02 21:11:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:58,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:58,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:58,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067807884] [2022-11-02 21:11:58,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067807884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:58,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:58,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:11:58,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061483907] [2022-11-02 21:11:58,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:58,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:11:58,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:58,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:11:58,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:11:58,162 INFO L87 Difference]: Start difference. First operand 599 states and 787 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:58,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:58,557 INFO L93 Difference]: Finished difference Result 605 states and 794 transitions. [2022-11-02 21:11:58,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:11:58,557 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2022-11-02 21:11:58,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:58,559 INFO L225 Difference]: With dead ends: 605 [2022-11-02 21:11:58,559 INFO L226 Difference]: Without dead ends: 605 [2022-11-02 21:11:58,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:11:58,572 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 98 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:58,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 2016 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:11:58,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-11-02 21:11:58,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 589. [2022-11-02 21:11:58,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 499 states have (on average 1.3026052104208417) internal successors, (650), 506 states have internal predecessors, (650), 55 states have call successors, (55), 27 states have call predecessors, (55), 34 states have return successors, (66), 55 states have call predecessors, (66), 50 states have call successors, (66) [2022-11-02 21:11:58,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 771 transitions. [2022-11-02 21:11:58,586 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 771 transitions. Word has length 51 [2022-11-02 21:11:58,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:58,588 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 771 transitions. [2022-11-02 21:11:58,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:58,588 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 771 transitions. [2022-11-02 21:11:58,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-02 21:11:58,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:58,590 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:58,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-02 21:11:58,591 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:58,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:58,592 INFO L85 PathProgramCache]: Analyzing trace with hash 445712646, now seen corresponding path program 1 times [2022-11-02 21:11:58,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:58,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35362032] [2022-11-02 21:11:58,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:58,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:58,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:11:58,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:58,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-02 21:11:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:58,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:58,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:58,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35362032] [2022-11-02 21:11:58,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35362032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:58,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:58,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:11:58,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295902186] [2022-11-02 21:11:58,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:58,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:11:58,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:58,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:11:58,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:11:58,692 INFO L87 Difference]: Start difference. First operand 589 states and 771 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:59,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:59,079 INFO L93 Difference]: Finished difference Result 601 states and 788 transitions. [2022-11-02 21:11:59,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:11:59,079 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2022-11-02 21:11:59,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:59,081 INFO L225 Difference]: With dead ends: 601 [2022-11-02 21:11:59,081 INFO L226 Difference]: Without dead ends: 596 [2022-11-02 21:11:59,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:11:59,082 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 171 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1767 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:59,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 1767 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:11:59,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2022-11-02 21:11:59,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 584. [2022-11-02 21:11:59,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 495 states have (on average 1.303030303030303) internal successors, (645), 502 states have internal predecessors, (645), 54 states have call successors, (54), 27 states have call predecessors, (54), 34 states have return successors, (65), 54 states have call predecessors, (65), 49 states have call successors, (65) [2022-11-02 21:11:59,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 764 transitions. [2022-11-02 21:11:59,092 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 764 transitions. Word has length 52 [2022-11-02 21:11:59,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:59,093 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 764 transitions. [2022-11-02 21:11:59,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:11:59,093 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 764 transitions. [2022-11-02 21:11:59,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-02 21:11:59,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:59,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:59,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-02 21:11:59,095 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:59,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:59,096 INFO L85 PathProgramCache]: Analyzing trace with hash 432060647, now seen corresponding path program 1 times [2022-11-02 21:11:59,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:59,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986927370] [2022-11-02 21:11:59,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:59,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:59,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:11:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:59,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:11:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:59,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:59,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:59,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986927370] [2022-11-02 21:11:59,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986927370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:59,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:59,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:11:59,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688968196] [2022-11-02 21:11:59,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:59,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:11:59,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:59,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:11:59,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:11:59,162 INFO L87 Difference]: Start difference. First operand 584 states and 764 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:11:59,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:59,549 INFO L93 Difference]: Finished difference Result 700 states and 916 transitions. [2022-11-02 21:11:59,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:11:59,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 52 [2022-11-02 21:11:59,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:59,552 INFO L225 Difference]: With dead ends: 700 [2022-11-02 21:11:59,552 INFO L226 Difference]: Without dead ends: 700 [2022-11-02 21:11:59,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:11:59,552 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 292 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:59,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1073 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:11:59,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2022-11-02 21:11:59,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 616. [2022-11-02 21:11:59,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 525 states have (on average 1.2971428571428572) internal successors, (681), 532 states have internal predecessors, (681), 54 states have call successors, (54), 27 states have call predecessors, (54), 36 states have return successors, (67), 56 states have call predecessors, (67), 49 states have call successors, (67) [2022-11-02 21:11:59,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 802 transitions. [2022-11-02 21:11:59,564 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 802 transitions. Word has length 52 [2022-11-02 21:11:59,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:59,565 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 802 transitions. [2022-11-02 21:11:59,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:11:59,565 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 802 transitions. [2022-11-02 21:11:59,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-02 21:11:59,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:59,567 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:59,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-02 21:11:59,567 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:11:59,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:59,568 INFO L85 PathProgramCache]: Analyzing trace with hash 953754427, now seen corresponding path program 1 times [2022-11-02 21:11:59,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:59,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156623382] [2022-11-02 21:11:59,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:59,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:59,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:11:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:59,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:11:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:59,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:11:59,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:59,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156623382] [2022-11-02 21:11:59,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156623382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:59,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:59,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:11:59,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793140590] [2022-11-02 21:11:59,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:59,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:11:59,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:59,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:11:59,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:11:59,656 INFO L87 Difference]: Start difference. First operand 616 states and 802 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:00,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:00,345 INFO L93 Difference]: Finished difference Result 697 states and 910 transitions. [2022-11-02 21:12:00,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:12:00,346 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2022-11-02 21:12:00,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:00,348 INFO L225 Difference]: With dead ends: 697 [2022-11-02 21:12:00,348 INFO L226 Difference]: Without dead ends: 697 [2022-11-02 21:12:00,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:12:00,350 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 725 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:00,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 1544 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:12:00,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2022-11-02 21:12:00,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 616. [2022-11-02 21:12:00,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 525 states have (on average 1.2933333333333332) internal successors, (679), 532 states have internal predecessors, (679), 54 states have call successors, (54), 27 states have call predecessors, (54), 36 states have return successors, (67), 56 states have call predecessors, (67), 49 states have call successors, (67) [2022-11-02 21:12:00,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 800 transitions. [2022-11-02 21:12:00,362 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 800 transitions. Word has length 53 [2022-11-02 21:12:00,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:00,362 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 800 transitions. [2022-11-02 21:12:00,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:00,362 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 800 transitions. [2022-11-02 21:12:00,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-02 21:12:00,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:00,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:00,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-02 21:12:00,365 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:00,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:00,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1335081080, now seen corresponding path program 1 times [2022-11-02 21:12:00,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:00,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819467593] [2022-11-02 21:12:00,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:00,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:00,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-02 21:12:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:00,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-02 21:12:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:00,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-02 21:12:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:00,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:12:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:00,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:00,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:00,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819467593] [2022-11-02 21:12:00,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819467593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:00,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:00,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-02 21:12:00,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674363175] [2022-11-02 21:12:00,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:00,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-02 21:12:00,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:00,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-02 21:12:00,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:12:00,632 INFO L87 Difference]: Start difference. First operand 616 states and 800 transitions. Second operand has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-02 21:12:01,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:01,584 INFO L93 Difference]: Finished difference Result 668 states and 864 transitions. [2022-11-02 21:12:01,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 21:12:01,585 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 59 [2022-11-02 21:12:01,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:01,591 INFO L225 Difference]: With dead ends: 668 [2022-11-02 21:12:01,591 INFO L226 Difference]: Without dead ends: 651 [2022-11-02 21:12:01,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-11-02 21:12:01,593 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 263 mSDsluCounter, 3111 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 3551 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:01,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 3551 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-02 21:12:01,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2022-11-02 21:12:01,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 614. [2022-11-02 21:12:01,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 524 states have (on average 1.2919847328244274) internal successors, (677), 531 states have internal predecessors, (677), 53 states have call successors, (53), 27 states have call predecessors, (53), 36 states have return successors, (66), 55 states have call predecessors, (66), 48 states have call successors, (66) [2022-11-02 21:12:01,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 796 transitions. [2022-11-02 21:12:01,605 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 796 transitions. Word has length 59 [2022-11-02 21:12:01,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:01,606 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 796 transitions. [2022-11-02 21:12:01,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-02 21:12:01,606 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 796 transitions. [2022-11-02 21:12:01,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-02 21:12:01,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:01,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:01,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-02 21:12:01,608 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:01,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:01,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1347488490, now seen corresponding path program 1 times [2022-11-02 21:12:01,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:01,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897766979] [2022-11-02 21:12:01,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:01,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:01,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:12:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:01,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:12:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:01,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:12:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:01,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:01,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:01,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897766979] [2022-11-02 21:12:01,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897766979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:01,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:01,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-02 21:12:01,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812184801] [2022-11-02 21:12:01,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:01,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 21:12:01,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:01,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 21:12:01,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:12:01,909 INFO L87 Difference]: Start difference. First operand 614 states and 796 transitions. Second operand has 16 states, 15 states have (on average 3.2) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:12:03,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:03,035 INFO L93 Difference]: Finished difference Result 643 states and 832 transitions. [2022-11-02 21:12:03,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 21:12:03,035 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 55 [2022-11-02 21:12:03,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:03,037 INFO L225 Difference]: With dead ends: 643 [2022-11-02 21:12:03,038 INFO L226 Difference]: Without dead ends: 622 [2022-11-02 21:12:03,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650 [2022-11-02 21:12:03,039 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 252 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 3948 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:03,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 3948 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1583 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-02 21:12:03,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-11-02 21:12:03,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 610. [2022-11-02 21:12:03,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 521 states have (on average 1.2917466410748562) internal successors, (673), 528 states have internal predecessors, (673), 52 states have call successors, (52), 27 states have call predecessors, (52), 36 states have return successors, (65), 54 states have call predecessors, (65), 47 states have call successors, (65) [2022-11-02 21:12:03,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 790 transitions. [2022-11-02 21:12:03,050 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 790 transitions. Word has length 55 [2022-11-02 21:12:03,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:03,050 INFO L495 AbstractCegarLoop]: Abstraction has 610 states and 790 transitions. [2022-11-02 21:12:03,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:12:03,050 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 790 transitions. [2022-11-02 21:12:03,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-02 21:12:03,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:03,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:03,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-02 21:12:03,052 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:03,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:03,053 INFO L85 PathProgramCache]: Analyzing trace with hash 2057071680, now seen corresponding path program 1 times [2022-11-02 21:12:03,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:03,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26707623] [2022-11-02 21:12:03,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:03,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:03,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-02 21:12:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:03,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 21:12:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:03,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:03,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:03,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26707623] [2022-11-02 21:12:03,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26707623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:03,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:03,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:03,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896752894] [2022-11-02 21:12:03,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:03,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:03,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:03,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:03,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:03,137 INFO L87 Difference]: Start difference. First operand 610 states and 790 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:03,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:03,481 INFO L93 Difference]: Finished difference Result 622 states and 807 transitions. [2022-11-02 21:12:03,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:12:03,482 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2022-11-02 21:12:03,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:03,483 INFO L225 Difference]: With dead ends: 622 [2022-11-02 21:12:03,483 INFO L226 Difference]: Without dead ends: 617 [2022-11-02 21:12:03,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:12:03,484 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 171 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:03,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 1691 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:12:03,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-11-02 21:12:03,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 605. [2022-11-02 21:12:03,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 517 states have (on average 1.2920696324951644) internal successors, (668), 524 states have internal predecessors, (668), 51 states have call successors, (51), 27 states have call predecessors, (51), 36 states have return successors, (64), 53 states have call predecessors, (64), 46 states have call successors, (64) [2022-11-02 21:12:03,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 783 transitions. [2022-11-02 21:12:03,503 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 783 transitions. Word has length 54 [2022-11-02 21:12:03,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:03,503 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 783 transitions. [2022-11-02 21:12:03,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:03,504 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 783 transitions. [2022-11-02 21:12:03,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-02 21:12:03,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:03,505 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:03,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-02 21:12:03,506 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:03,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:03,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1301879028, now seen corresponding path program 1 times [2022-11-02 21:12:03,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:03,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502512075] [2022-11-02 21:12:03,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:03,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:03,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-02 21:12:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:03,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 21:12:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:03,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:03,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:03,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502512075] [2022-11-02 21:12:03,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502512075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:03,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:03,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 21:12:03,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047063653] [2022-11-02 21:12:03,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:03,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:12:03,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:03,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:12:03,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:12:03,670 INFO L87 Difference]: Start difference. First operand 605 states and 783 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:04,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:04,212 INFO L93 Difference]: Finished difference Result 637 states and 823 transitions. [2022-11-02 21:12:04,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:12:04,214 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2022-11-02 21:12:04,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:04,216 INFO L225 Difference]: With dead ends: 637 [2022-11-02 21:12:04,216 INFO L226 Difference]: Without dead ends: 614 [2022-11-02 21:12:04,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:12:04,217 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 232 mSDsluCounter, 2689 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:04,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 3102 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:12:04,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2022-11-02 21:12:04,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 602. [2022-11-02 21:12:04,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 515 states have (on average 1.2912621359223302) internal successors, (665), 522 states have internal predecessors, (665), 50 states have call successors, (50), 27 states have call predecessors, (50), 36 states have return successors, (63), 52 states have call predecessors, (63), 45 states have call successors, (63) [2022-11-02 21:12:04,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 778 transitions. [2022-11-02 21:12:04,232 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 778 transitions. Word has length 54 [2022-11-02 21:12:04,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:04,232 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 778 transitions. [2022-11-02 21:12:04,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:04,232 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 778 transitions. [2022-11-02 21:12:04,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-02 21:12:04,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:04,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:04,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-02 21:12:04,235 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:04,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:04,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1138075636, now seen corresponding path program 1 times [2022-11-02 21:12:04,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:04,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952538531] [2022-11-02 21:12:04,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:04,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:04,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:12:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:04,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:12:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:04,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:04,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:04,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952538531] [2022-11-02 21:12:04,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952538531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:04,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:04,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:04,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131850025] [2022-11-02 21:12:04,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:04,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:04,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:04,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:04,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:04,387 INFO L87 Difference]: Start difference. First operand 602 states and 778 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:05,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:05,020 INFO L93 Difference]: Finished difference Result 683 states and 886 transitions. [2022-11-02 21:12:05,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:12:05,021 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2022-11-02 21:12:05,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:05,023 INFO L225 Difference]: With dead ends: 683 [2022-11-02 21:12:05,024 INFO L226 Difference]: Without dead ends: 683 [2022-11-02 21:12:05,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:12:05,024 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 774 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:05,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 1212 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:12:05,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2022-11-02 21:12:05,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 599. [2022-11-02 21:12:05,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 512 states have (on average 1.2890625) internal successors, (660), 519 states have internal predecessors, (660), 50 states have call successors, (50), 27 states have call predecessors, (50), 36 states have return successors, (63), 52 states have call predecessors, (63), 45 states have call successors, (63) [2022-11-02 21:12:05,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 773 transitions. [2022-11-02 21:12:05,040 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 773 transitions. Word has length 54 [2022-11-02 21:12:05,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:05,040 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 773 transitions. [2022-11-02 21:12:05,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:05,041 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 773 transitions. [2022-11-02 21:12:05,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-02 21:12:05,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:05,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:05,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-02 21:12:05,043 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:05,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:05,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1137798806, now seen corresponding path program 1 times [2022-11-02 21:12:05,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:05,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195209404] [2022-11-02 21:12:05,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:05,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:05,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:12:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:05,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:12:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:05,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:05,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:05,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195209404] [2022-11-02 21:12:05,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195209404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:05,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:05,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 21:12:05,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70350543] [2022-11-02 21:12:05,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:05,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:12:05,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:05,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:12:05,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:12:05,333 INFO L87 Difference]: Start difference. First operand 599 states and 773 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:06,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:06,208 INFO L93 Difference]: Finished difference Result 618 states and 797 transitions. [2022-11-02 21:12:06,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:12:06,209 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2022-11-02 21:12:06,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:06,210 INFO L225 Difference]: With dead ends: 618 [2022-11-02 21:12:06,211 INFO L226 Difference]: Without dead ends: 593 [2022-11-02 21:12:06,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-11-02 21:12:06,211 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 219 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2739 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:06,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 2739 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-02 21:12:06,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-11-02 21:12:06,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 577. [2022-11-02 21:12:06,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 491 states have (on average 1.2830957230142566) internal successors, (630), 498 states have internal predecessors, (630), 50 states have call successors, (50), 27 states have call predecessors, (50), 35 states have return successors, (62), 51 states have call predecessors, (62), 45 states have call successors, (62) [2022-11-02 21:12:06,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 742 transitions. [2022-11-02 21:12:06,222 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 742 transitions. Word has length 54 [2022-11-02 21:12:06,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:06,222 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 742 transitions. [2022-11-02 21:12:06,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:06,223 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 742 transitions. [2022-11-02 21:12:06,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-02 21:12:06,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:06,224 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:06,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-02 21:12:06,225 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:06,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:06,225 INFO L85 PathProgramCache]: Analyzing trace with hash -2015257924, now seen corresponding path program 1 times [2022-11-02 21:12:06,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:06,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038533643] [2022-11-02 21:12:06,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:06,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:06,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:12:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:06,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:12:06,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:06,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:06,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:06,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038533643] [2022-11-02 21:12:06,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038533643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:06,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:06,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:12:06,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333774071] [2022-11-02 21:12:06,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:06,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:12:06,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:06,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:12:06,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:12:06,291 INFO L87 Difference]: Start difference. First operand 577 states and 742 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:06,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:06,626 INFO L93 Difference]: Finished difference Result 592 states and 756 transitions. [2022-11-02 21:12:06,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:12:06,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2022-11-02 21:12:06,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:06,637 INFO L225 Difference]: With dead ends: 592 [2022-11-02 21:12:06,637 INFO L226 Difference]: Without dead ends: 582 [2022-11-02 21:12:06,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:06,639 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 233 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:06,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 960 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:12:06,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2022-11-02 21:12:06,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 566. [2022-11-02 21:12:06,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 481 states have (on average 1.2744282744282744) internal successors, (613), 488 states have internal predecessors, (613), 50 states have call successors, (50), 27 states have call predecessors, (50), 34 states have return successors, (61), 50 states have call predecessors, (61), 45 states have call successors, (61) [2022-11-02 21:12:06,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 724 transitions. [2022-11-02 21:12:06,650 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 724 transitions. Word has length 54 [2022-11-02 21:12:06,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:06,650 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 724 transitions. [2022-11-02 21:12:06,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:06,651 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 724 transitions. [2022-11-02 21:12:06,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-02 21:12:06,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:06,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:06,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-02 21:12:06,653 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:06,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:06,654 INFO L85 PathProgramCache]: Analyzing trace with hash 169253140, now seen corresponding path program 1 times [2022-11-02 21:12:06,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:06,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702804652] [2022-11-02 21:12:06,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:06,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:06,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:12:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:06,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-02 21:12:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:06,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:12:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:06,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:06,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:06,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702804652] [2022-11-02 21:12:06,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702804652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:06,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:06,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:12:06,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940715714] [2022-11-02 21:12:06,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:06,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:12:06,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:06,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:12:06,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:12:06,759 INFO L87 Difference]: Start difference. First operand 566 states and 724 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:12:07,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:07,295 INFO L93 Difference]: Finished difference Result 596 states and 761 transitions. [2022-11-02 21:12:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 21:12:07,295 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2022-11-02 21:12:07,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:07,297 INFO L225 Difference]: With dead ends: 596 [2022-11-02 21:12:07,297 INFO L226 Difference]: Without dead ends: 596 [2022-11-02 21:12:07,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:12:07,298 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 188 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:07,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 2010 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:12:07,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2022-11-02 21:12:07,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 566. [2022-11-02 21:12:07,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 481 states have (on average 1.2723492723492724) internal successors, (612), 488 states have internal predecessors, (612), 50 states have call successors, (50), 27 states have call predecessors, (50), 34 states have return successors, (61), 50 states have call predecessors, (61), 45 states have call successors, (61) [2022-11-02 21:12:07,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 723 transitions. [2022-11-02 21:12:07,307 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 723 transitions. Word has length 56 [2022-11-02 21:12:07,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:07,308 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 723 transitions. [2022-11-02 21:12:07,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:12:07,308 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 723 transitions. [2022-11-02 21:12:07,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-02 21:12:07,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:07,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:07,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-02 21:12:07,310 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:07,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:07,311 INFO L85 PathProgramCache]: Analyzing trace with hash 191885394, now seen corresponding path program 1 times [2022-11-02 21:12:07,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:07,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103333148] [2022-11-02 21:12:07,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:07,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:07,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:12:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:07,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-02 21:12:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:07,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:12:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:07,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:07,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:07,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103333148] [2022-11-02 21:12:07,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103333148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:07,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:07,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-02 21:12:07,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305730966] [2022-11-02 21:12:07,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:07,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-02 21:12:07,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:07,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-02 21:12:07,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:12:07,546 INFO L87 Difference]: Start difference. First operand 566 states and 723 transitions. Second operand has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:12:08,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:08,433 INFO L93 Difference]: Finished difference Result 618 states and 787 transitions. [2022-11-02 21:12:08,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 21:12:08,433 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 56 [2022-11-02 21:12:08,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:08,435 INFO L225 Difference]: With dead ends: 618 [2022-11-02 21:12:08,435 INFO L226 Difference]: Without dead ends: 591 [2022-11-02 21:12:08,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-11-02 21:12:08,436 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 277 mSDsluCounter, 2846 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 3245 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:08,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 3245 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 21:12:08,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-11-02 21:12:08,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 561. [2022-11-02 21:12:08,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 477 states have (on average 1.2683438155136268) internal successors, (605), 484 states have internal predecessors, (605), 49 states have call successors, (49), 27 states have call predecessors, (49), 34 states have return successors, (59), 49 states have call predecessors, (59), 44 states have call successors, (59) [2022-11-02 21:12:08,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 713 transitions. [2022-11-02 21:12:08,446 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 713 transitions. Word has length 56 [2022-11-02 21:12:08,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:08,457 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 713 transitions. [2022-11-02 21:12:08,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:12:08,457 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 713 transitions. [2022-11-02 21:12:08,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-02 21:12:08,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:08,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:08,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-02 21:12:08,459 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:08,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:08,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1983153674, now seen corresponding path program 1 times [2022-11-02 21:12:08,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:08,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311202584] [2022-11-02 21:12:08,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:08,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:08,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:12:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:08,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-02 21:12:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:08,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:12:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:08,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:08,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:08,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311202584] [2022-11-02 21:12:08,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311202584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:08,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:08,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:12:08,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478693990] [2022-11-02 21:12:08,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:08,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:12:08,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:08,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:12:08,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:12:08,556 INFO L87 Difference]: Start difference. First operand 561 states and 713 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:12:08,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:08,976 INFO L93 Difference]: Finished difference Result 573 states and 730 transitions. [2022-11-02 21:12:08,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 21:12:08,976 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2022-11-02 21:12:08,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:08,978 INFO L225 Difference]: With dead ends: 573 [2022-11-02 21:12:08,978 INFO L226 Difference]: Without dead ends: 567 [2022-11-02 21:12:08,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:12:08,979 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 264 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1437 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:08,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 1437 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:12:08,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-11-02 21:12:08,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 555. [2022-11-02 21:12:08,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 472 states have (on average 1.2690677966101696) internal successors, (599), 479 states have internal predecessors, (599), 48 states have call successors, (48), 27 states have call predecessors, (48), 34 states have return successors, (58), 48 states have call predecessors, (58), 43 states have call successors, (58) [2022-11-02 21:12:08,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 705 transitions. [2022-11-02 21:12:08,988 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 705 transitions. Word has length 56 [2022-11-02 21:12:08,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:08,989 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 705 transitions. [2022-11-02 21:12:08,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:12:08,989 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 705 transitions. [2022-11-02 21:12:08,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-02 21:12:08,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:08,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:08,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-02 21:12:08,991 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:08,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:08,992 INFO L85 PathProgramCache]: Analyzing trace with hash 297829050, now seen corresponding path program 1 times [2022-11-02 21:12:08,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:08,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204192427] [2022-11-02 21:12:08,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:08,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:09,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:12:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:09,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:12:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:09,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:09,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:09,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204192427] [2022-11-02 21:12:09,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204192427] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:09,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:09,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 21:12:09,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143399266] [2022-11-02 21:12:09,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:09,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:12:09,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:09,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:12:09,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:12:09,185 INFO L87 Difference]: Start difference. First operand 555 states and 705 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:09,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:09,958 INFO L93 Difference]: Finished difference Result 627 states and 787 transitions. [2022-11-02 21:12:09,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:12:09,958 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2022-11-02 21:12:09,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:09,960 INFO L225 Difference]: With dead ends: 627 [2022-11-02 21:12:09,960 INFO L226 Difference]: Without dead ends: 606 [2022-11-02 21:12:09,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:12:09,961 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 295 mSDsluCounter, 2162 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 2528 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:09,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 2528 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 21:12:09,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-11-02 21:12:09,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 561. [2022-11-02 21:12:09,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 478 states have (on average 1.2573221757322175) internal successors, (601), 485 states have internal predecessors, (601), 48 states have call successors, (48), 27 states have call predecessors, (48), 34 states have return successors, (58), 48 states have call predecessors, (58), 43 states have call successors, (58) [2022-11-02 21:12:09,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 707 transitions. [2022-11-02 21:12:09,971 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 707 transitions. Word has length 56 [2022-11-02 21:12:09,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:09,971 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 707 transitions. [2022-11-02 21:12:09,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:09,972 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 707 transitions. [2022-11-02 21:12:09,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-02 21:12:09,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:09,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:09,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-02 21:12:09,974 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:09,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:09,974 INFO L85 PathProgramCache]: Analyzing trace with hash -353317419, now seen corresponding path program 1 times [2022-11-02 21:12:09,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:09,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14590253] [2022-11-02 21:12:09,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:09,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:10,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 21:12:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:10,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-02 21:12:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:10,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:12:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:10,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:10,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:10,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14590253] [2022-11-02 21:12:10,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14590253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:10,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:10,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:12:10,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193489105] [2022-11-02 21:12:10,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:10,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:12:10,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:10,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:12:10,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:12:10,077 INFO L87 Difference]: Start difference. First operand 561 states and 707 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:12:10,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:10,596 INFO L93 Difference]: Finished difference Result 572 states and 722 transitions. [2022-11-02 21:12:10,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 21:12:10,597 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 58 [2022-11-02 21:12:10,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:10,598 INFO L225 Difference]: With dead ends: 572 [2022-11-02 21:12:10,599 INFO L226 Difference]: Without dead ends: 561 [2022-11-02 21:12:10,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:12:10,599 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 170 mSDsluCounter, 1437 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:10,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 1804 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:12:10,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2022-11-02 21:12:10,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 549. [2022-11-02 21:12:10,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 467 states have (on average 1.2526766595289078) internal successors, (585), 474 states have internal predecessors, (585), 47 states have call successors, (47), 27 states have call predecessors, (47), 34 states have return successors, (57), 47 states have call predecessors, (57), 42 states have call successors, (57) [2022-11-02 21:12:10,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 689 transitions. [2022-11-02 21:12:10,610 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 689 transitions. Word has length 58 [2022-11-02 21:12:10,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:10,610 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 689 transitions. [2022-11-02 21:12:10,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:12:10,611 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 689 transitions. [2022-11-02 21:12:10,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-02 21:12:10,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:10,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:10,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-02 21:12:10,613 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:10,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:10,613 INFO L85 PathProgramCache]: Analyzing trace with hash -470261491, now seen corresponding path program 1 times [2022-11-02 21:12:10,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:10,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436154416] [2022-11-02 21:12:10,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:10,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:10,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 21:12:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:10,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 21:12:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:10,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:12:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:10,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:10,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:10,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436154416] [2022-11-02 21:12:10,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436154416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:10,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:10,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-02 21:12:10,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646033416] [2022-11-02 21:12:10,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:10,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:12:10,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:10,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:12:10,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:12:10,945 INFO L87 Difference]: Start difference. First operand 549 states and 689 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 21:12:11,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:11,922 INFO L93 Difference]: Finished difference Result 574 states and 720 transitions. [2022-11-02 21:12:11,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:12:11,923 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 64 [2022-11-02 21:12:11,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:11,925 INFO L225 Difference]: With dead ends: 574 [2022-11-02 21:12:11,925 INFO L226 Difference]: Without dead ends: 556 [2022-11-02 21:12:11,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:12:11,925 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 207 mSDsluCounter, 2673 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 3038 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:11,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 3038 Invalid, 1479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-02 21:12:11,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2022-11-02 21:12:11,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 544. [2022-11-02 21:12:11,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 464 states have (on average 1.2521551724137931) internal successors, (581), 471 states have internal predecessors, (581), 45 states have call successors, (45), 27 states have call predecessors, (45), 34 states have return successors, (55), 45 states have call predecessors, (55), 40 states have call successors, (55) [2022-11-02 21:12:11,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 681 transitions. [2022-11-02 21:12:11,935 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 681 transitions. Word has length 64 [2022-11-02 21:12:11,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:11,935 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 681 transitions. [2022-11-02 21:12:11,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 21:12:11,936 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 681 transitions. [2022-11-02 21:12:11,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-02 21:12:11,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:11,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:11,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-02 21:12:11,938 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:11,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:11,938 INFO L85 PathProgramCache]: Analyzing trace with hash 908630671, now seen corresponding path program 1 times [2022-11-02 21:12:11,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:11,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861503441] [2022-11-02 21:12:11,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:11,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:12,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 21:12:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:12,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:12:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:12,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:12,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:12,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861503441] [2022-11-02 21:12:12,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861503441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:12,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:12,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:12:12,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500748116] [2022-11-02 21:12:12,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:12,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:12:12,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:12,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:12:12,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:12:12,229 INFO L87 Difference]: Start difference. First operand 544 states and 681 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:12,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:12,983 INFO L93 Difference]: Finished difference Result 555 states and 696 transitions. [2022-11-02 21:12:12,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:12:12,983 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-11-02 21:12:12,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:12,985 INFO L225 Difference]: With dead ends: 555 [2022-11-02 21:12:12,985 INFO L226 Difference]: Without dead ends: 514 [2022-11-02 21:12:12,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:12:12,985 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 115 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 2879 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:12,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 2879 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 21:12:12,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-11-02 21:12:12,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 502. [2022-11-02 21:12:12,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 427 states have (on average 1.2622950819672132) internal successors, (539), 433 states have internal predecessors, (539), 42 states have call successors, (42), 25 states have call predecessors, (42), 32 states have return successors, (53), 43 states have call predecessors, (53), 38 states have call successors, (53) [2022-11-02 21:12:12,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 634 transitions. [2022-11-02 21:12:12,993 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 634 transitions. Word has length 57 [2022-11-02 21:12:12,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:12,993 INFO L495 AbstractCegarLoop]: Abstraction has 502 states and 634 transitions. [2022-11-02 21:12:12,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:12,994 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 634 transitions. [2022-11-02 21:12:12,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-02 21:12:12,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:12,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:12,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-02 21:12:12,996 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:12,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:12,996 INFO L85 PathProgramCache]: Analyzing trace with hash -657100087, now seen corresponding path program 1 times [2022-11-02 21:12:12,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:12,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714419861] [2022-11-02 21:12:12,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:12,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:13,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:12:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:13,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:12:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:13,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-02 21:12:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:13,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:13,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:13,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714419861] [2022-11-02 21:12:13,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714419861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:13,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:13,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 21:12:13,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611497638] [2022-11-02 21:12:13,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:13,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:12:13,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:13,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:12:13,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:12:13,229 INFO L87 Difference]: Start difference. First operand 502 states and 634 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:12:14,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:14,931 INFO L93 Difference]: Finished difference Result 956 states and 1210 transitions. [2022-11-02 21:12:14,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-02 21:12:14,932 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2022-11-02 21:12:14,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:14,934 INFO L225 Difference]: With dead ends: 956 [2022-11-02 21:12:14,934 INFO L226 Difference]: Without dead ends: 949 [2022-11-02 21:12:14,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=273, Invalid=1287, Unknown=0, NotChecked=0, Total=1560 [2022-11-02 21:12:14,935 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 943 mSDsluCounter, 1871 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 2266 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:14,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 2266 Invalid, 1522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 21:12:14,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2022-11-02 21:12:14,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 719. [2022-11-02 21:12:14,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 606 states have (on average 1.2656765676567656) internal successors, (767), 619 states have internal predecessors, (767), 61 states have call successors, (61), 40 states have call predecessors, (61), 51 states have return successors, (80), 59 states have call predecessors, (80), 57 states have call successors, (80) [2022-11-02 21:12:14,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 908 transitions. [2022-11-02 21:12:14,950 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 908 transitions. Word has length 58 [2022-11-02 21:12:14,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:14,950 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 908 transitions. [2022-11-02 21:12:14,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:12:14,951 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 908 transitions. [2022-11-02 21:12:14,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-02 21:12:14,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:14,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:14,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-02 21:12:14,953 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:14,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:14,954 INFO L85 PathProgramCache]: Analyzing trace with hash 218918919, now seen corresponding path program 1 times [2022-11-02 21:12:14,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:14,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379607112] [2022-11-02 21:12:14,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:14,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:14,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:12:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:15,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:12:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:15,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-02 21:12:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:15,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:15,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:15,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379607112] [2022-11-02 21:12:15,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379607112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:15,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:15,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:15,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152616509] [2022-11-02 21:12:15,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:15,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:15,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:15,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:15,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:15,042 INFO L87 Difference]: Start difference. First operand 719 states and 908 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:12:15,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:15,823 INFO L93 Difference]: Finished difference Result 946 states and 1198 transitions. [2022-11-02 21:12:15,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 21:12:15,824 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2022-11-02 21:12:15,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:15,826 INFO L225 Difference]: With dead ends: 946 [2022-11-02 21:12:15,826 INFO L226 Difference]: Without dead ends: 946 [2022-11-02 21:12:15,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-11-02 21:12:15,827 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 851 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:15,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 2102 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 21:12:15,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2022-11-02 21:12:15,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 546. [2022-11-02 21:12:15,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 466 states have (on average 1.2467811158798283) internal successors, (581), 472 states have internal predecessors, (581), 44 states have call successors, (44), 29 states have call predecessors, (44), 35 states have return successors, (55), 44 states have call predecessors, (55), 40 states have call successors, (55) [2022-11-02 21:12:15,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 680 transitions. [2022-11-02 21:12:15,838 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 680 transitions. Word has length 58 [2022-11-02 21:12:15,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:15,838 INFO L495 AbstractCegarLoop]: Abstraction has 546 states and 680 transitions. [2022-11-02 21:12:15,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:12:15,840 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 680 transitions. [2022-11-02 21:12:15,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-02 21:12:15,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:15,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:15,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-02 21:12:15,842 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:15,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:15,843 INFO L85 PathProgramCache]: Analyzing trace with hash -924829849, now seen corresponding path program 1 times [2022-11-02 21:12:15,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:15,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728529454] [2022-11-02 21:12:15,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:15,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:16,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-02 21:12:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:16,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-02 21:12:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:16,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-02 21:12:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:16,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 21:12:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:16,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:16,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:16,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728529454] [2022-11-02 21:12:16,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728529454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:16,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:16,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-02 21:12:16,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679952817] [2022-11-02 21:12:16,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:16,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-02 21:12:16,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:16,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-02 21:12:16,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:12:16,115 INFO L87 Difference]: Start difference. First operand 546 states and 680 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-02 21:12:17,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:17,051 INFO L93 Difference]: Finished difference Result 578 states and 720 transitions. [2022-11-02 21:12:17,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 21:12:17,052 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 60 [2022-11-02 21:12:17,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:17,053 INFO L225 Difference]: With dead ends: 578 [2022-11-02 21:12:17,053 INFO L226 Difference]: Without dead ends: 549 [2022-11-02 21:12:17,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-11-02 21:12:17,054 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 223 mSDsluCounter, 2602 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2933 SdHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:17,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 2933 Invalid, 1465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-02 21:12:17,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-11-02 21:12:17,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 537. [2022-11-02 21:12:17,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 459 states have (on average 1.2440087145969498) internal successors, (571), 465 states have internal predecessors, (571), 42 states have call successors, (42), 29 states have call predecessors, (42), 35 states have return successors, (52), 42 states have call predecessors, (52), 38 states have call successors, (52) [2022-11-02 21:12:17,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 665 transitions. [2022-11-02 21:12:17,061 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 665 transitions. Word has length 60 [2022-11-02 21:12:17,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:17,061 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 665 transitions. [2022-11-02 21:12:17,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-02 21:12:17,062 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 665 transitions. [2022-11-02 21:12:17,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-02 21:12:17,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:17,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:17,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-02 21:12:17,064 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:17,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:17,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1589833595, now seen corresponding path program 1 times [2022-11-02 21:12:17,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:17,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89021084] [2022-11-02 21:12:17,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:17,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:17,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-02 21:12:17,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:17,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 21:12:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:17,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:17,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:17,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89021084] [2022-11-02 21:12:17,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89021084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:17,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:17,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:17,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52690552] [2022-11-02 21:12:17,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:17,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:17,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:17,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:17,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:17,147 INFO L87 Difference]: Start difference. First operand 537 states and 665 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:17,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:17,419 INFO L93 Difference]: Finished difference Result 547 states and 677 transitions. [2022-11-02 21:12:17,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:12:17,420 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 58 [2022-11-02 21:12:17,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:17,421 INFO L225 Difference]: With dead ends: 547 [2022-11-02 21:12:17,421 INFO L226 Difference]: Without dead ends: 539 [2022-11-02 21:12:17,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:12:17,422 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 156 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:17,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 1276 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:12:17,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2022-11-02 21:12:17,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 527. [2022-11-02 21:12:17,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 450 states have (on average 1.2444444444444445) internal successors, (560), 456 states have internal predecessors, (560), 41 states have call successors, (41), 29 states have call predecessors, (41), 35 states have return successors, (50), 41 states have call predecessors, (50), 37 states have call successors, (50) [2022-11-02 21:12:17,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 651 transitions. [2022-11-02 21:12:17,429 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 651 transitions. Word has length 58 [2022-11-02 21:12:17,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:17,430 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 651 transitions. [2022-11-02 21:12:17,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:17,430 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 651 transitions. [2022-11-02 21:12:17,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-02 21:12:17,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:17,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:17,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-02 21:12:17,435 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:17,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:17,436 INFO L85 PathProgramCache]: Analyzing trace with hash -2090035410, now seen corresponding path program 1 times [2022-11-02 21:12:17,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:17,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010463879] [2022-11-02 21:12:17,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:17,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:12:17,454 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:12:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:12:17,523 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:12:17,524 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 21:12:17,525 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-11-02 21:12:17,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-11-02 21:12:17,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-02 21:12:17,533 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:17,537 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:12:17,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:12:17 BoogieIcfgContainer [2022-11-02 21:12:17,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:12:17,632 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:12:17,632 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:12:17,632 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:12:17,633 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:11:23" (3/4) ... [2022-11-02 21:12:17,638 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 21:12:17,638 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:12:17,639 INFO L158 Benchmark]: Toolchain (without parser) took 57538.71ms. Allocated memory was 109.1MB in the beginning and 297.8MB in the end (delta: 188.7MB). Free memory was 67.8MB in the beginning and 177.0MB in the end (delta: -109.2MB). Peak memory consumption was 78.5MB. Max. memory is 16.1GB. [2022-11-02 21:12:17,639 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:12:17,639 INFO L158 Benchmark]: CACSL2BoogieTranslator took 811.89ms. Allocated memory is still 109.1MB. Free memory was 67.6MB in the beginning and 66.0MB in the end (delta: 1.6MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-11-02 21:12:17,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 134.97ms. Allocated memory is still 109.1MB. Free memory was 66.0MB in the beginning and 59.1MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-02 21:12:17,639 INFO L158 Benchmark]: Boogie Preprocessor took 155.81ms. Allocated memory is still 109.1MB. Free memory was 59.1MB in the beginning and 54.0MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 21:12:17,639 INFO L158 Benchmark]: RCFGBuilder took 2130.55ms. Allocated memory was 109.1MB in the beginning and 151.0MB in the end (delta: 41.9MB). Free memory was 54.0MB in the beginning and 93.5MB in the end (delta: -39.5MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2022-11-02 21:12:17,640 INFO L158 Benchmark]: TraceAbstraction took 54283.43ms. Allocated memory was 151.0MB in the beginning and 297.8MB in the end (delta: 146.8MB). Free memory was 92.4MB in the beginning and 177.0MB in the end (delta: -84.6MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. [2022-11-02 21:12:17,640 INFO L158 Benchmark]: Witness Printer took 6.06ms. Allocated memory is still 297.8MB. Free memory is still 177.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:12:17,641 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 811.89ms. Allocated memory is still 109.1MB. Free memory was 67.6MB in the beginning and 66.0MB in the end (delta: 1.6MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 134.97ms. Allocated memory is still 109.1MB. Free memory was 66.0MB in the beginning and 59.1MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 155.81ms. Allocated memory is still 109.1MB. Free memory was 59.1MB in the beginning and 54.0MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2130.55ms. Allocated memory was 109.1MB in the beginning and 151.0MB in the end (delta: 41.9MB). Free memory was 54.0MB in the beginning and 93.5MB in the end (delta: -39.5MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. * TraceAbstraction took 54283.43ms. Allocated memory was 151.0MB in the beginning and 297.8MB in the end (delta: 146.8MB). Free memory was 92.4MB in the beginning and 177.0MB in the end (delta: -84.6MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. * Witness Printer took 6.06ms. Allocated memory is still 297.8MB. Free memory is still 177.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 59]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 59. Possible FailurePath: [L32] int s ; [L33] int UNLOADED ; [L34] int NP ; [L35] int DC ; [L36] int SKIP1 ; [L37] int SKIP2 ; [L38] int MPR1 ; [L39] int MPR3 ; [L40] int IPC ; [L41] int pended ; [L42] int compFptr ; [L43] int compRegistered ; [L44] int lowerDriverReturn ; [L45] int setEventCalled ; [L46] int customIrp ; [L47] int routine ; [L48] int myStatus ; [L49] int pirp ; [L50] int Executive ; [L51] int Suspended ; [L52] int KernelMode ; [L53] int DeviceUsageTypePaging ; VAL [compFptr=0, compRegistered=0, customIrp=0, DC=0, DeviceUsageTypePaging=0, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=0, routine=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L1718] int pirp__IoStatus__Status ; [L1719] int d = __VERIFIER_nondet_int() ; [L1720] int status = __VERIFIER_nondet_int() ; [L1721] int irp = __VERIFIER_nondet_int() ; [L1722] int we_should_unload = __VERIFIER_nondet_int() ; [L1723] int irp_choice = __VERIFIER_nondet_int() ; [L1724] int devobj = __VERIFIER_nondet_int() ; [L1725] int __cil_tmp9 ; [L1730] s = 0 [L1731] UNLOADED = 0 [L1732] NP = 0 [L1733] DC = 0 [L1734] SKIP1 = 0 [L1735] SKIP2 = 0 [L1736] MPR1 = 0 [L1737] MPR3 = 0 [L1738] IPC = 0 [L1739] pended = 0 [L1740] compFptr = 0 [L1741] compRegistered = 0 [L1742] lowerDriverReturn = 0 [L1743] setEventCalled = 0 [L1744] customIrp = 0 [L1745] routine = 0 [L1746] myStatus = 0 [L1747] pirp = 0 [L1748] Executive = 0 [L1749] Suspended = 5 [L1750] KernelMode = 0 [L1751] DeviceUsageTypePaging = 1 [L1754] pirp = irp [L1755] CALL _BLAST_init() [L67] UNLOADED = 0 [L68] NP = 1 [L69] DC = 2 [L70] SKIP1 = 3 [L71] SKIP2 = 4 [L72] MPR1 = 5 [L73] MPR3 = 6 [L74] IPC = 7 [L75] s = UNLOADED [L76] pended = 0 [L77] compFptr = 0 [L78] compRegistered = 0 [L79] lowerDriverReturn = 0 [L80] setEventCalled = 0 [L81] customIrp = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, routine=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1755] RET _BLAST_init() [L1757] COND TRUE status >= 0 [L1758] s = NP [L1759] customIrp = 0 [L1760] setEventCalled = customIrp [L1761] lowerDriverReturn = setEventCalled [L1762] compRegistered = lowerDriverReturn [L1763] compFptr = compRegistered [L1764] pended = compFptr [L1765] pirp__IoStatus__Status = 0 [L1766] myStatus = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1767] COND TRUE irp_choice == 0 [L1768] pirp__IoStatus__Status = -1073741637 [L1769] myStatus = -1073741637 VAL [compFptr=0, compRegistered=0, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1772] CALL stub_driver_init() [L1707] s = NP [L1708] customIrp = 0 [L1709] setEventCalled = customIrp [L1710] lowerDriverReturn = setEventCalled [L1711] compRegistered = lowerDriverReturn [L1712] compFptr = compRegistered [L1713] pended = compFptr VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1772] RET stub_driver_init() [L1775] COND FALSE !(status < 0) [L1779] int tmp_ndt_1; [L1780] tmp_ndt_1 = __VERIFIER_nondet_int() [L1781] COND TRUE tmp_ndt_1 == 2 VAL [compFptr=0, compRegistered=0, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1798] CALL, EXPR CdAudioDeviceControl(devobj, pirp) [L313] int deviceExtension__Active = __VERIFIER_nondet_int() ; [L314] int status ; VAL [\old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L317] COND FALSE !(deviceExtension__Active == 2) VAL [\old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L320] COND FALSE !(deviceExtension__Active == 3) VAL [\old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L323] COND FALSE !(deviceExtension__Active == 1) VAL [\old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L326] COND TRUE deviceExtension__Active == 7 VAL [\old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L348] CALL, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L1591] int currentIrpStack__Parameters__DeviceIoControl__IoControlCode = __VERIFIER_nondet_int() ; [L1592] int deviceExtension__TargetDeviceObject = __VERIFIER_nondet_int() ; [L1593] int irpSp__Control ; [L1594] int tmp ; [L1595] int tmp___0 ; [L1596] int __cil_tmp8 ; [L1597] int __cil_tmp9 ; [L1598] int __cil_tmp10 ; [L1599] int __cil_tmp11 ; [L1600] int __cil_tmp12 ; [L1604] __cil_tmp8 = 56 [L1605] __cil_tmp9 = 16384 [L1606] __cil_tmp10 = 131072 [L1607] __cil_tmp11 = 147456 [L1608] __cil_tmp12 = 147512 VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1609] COND TRUE currentIrpStack__Parameters__DeviceIoControl__IoControlCode == __cil_tmp12 VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1610] COND FALSE !(s != NP) VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1615] COND FALSE !(compRegistered != 0) [L1620] compRegistered = 1 [L1621] routine = 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1625] irpSp__Control = 224 VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] CALL, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1900] int Irp__PendingReturned = __VERIFIER_nondet_int() ; [L1901] int returnVal2 ; [L1902] int compRetStatus ; [L1903] int lcontext = __VERIFIER_nondet_int() ; [L1904] unsigned long __cil_tmp8 ; VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1907] COND TRUE \read(compRegistered) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1908] COND TRUE routine == 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] CALL, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(Context)=-1, \old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1569] int Irp__PendingReturned = __VERIFIER_nondet_int() ; [L1570] int Irp__AssociatedIrp__SystemBuffer = __VERIFIER_nondet_int() ; [L1573] COND TRUE \read(Irp__PendingReturned) VAL [\old(Context)=-1, \old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, Context=-1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1574] COND TRUE pended == 0 [L1575] pended = 1 VAL [\old(Context)=-1, \old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, Context=-1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1582] COND FALSE !(myStatus >= 0) VAL [\old(Context)=-1, \old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, Context=-1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1587] return (myStatus); VAL [\old(Context)=-1, \old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \result=-1073741637, compFptr=0, compRegistered=1, Context=-1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] RET, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, HPCdrCompletion(DeviceObject, Irp, lcontext)=-1073741637, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] compRetStatus = HPCdrCompletion(DeviceObject, Irp, lcontext) [L1920] __cil_tmp8 = (unsigned long )compRetStatus VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1921] COND FALSE !(__cil_tmp8 == -1073741802) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1928] COND FALSE !(\read(Irp__PendingReturned)) [L1931] int tmp_ndt_4; [L1932] tmp_ndt_4 = __VERIFIER_nondet_int() [L1933] COND TRUE tmp_ndt_4 == 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1944] returnVal2 = 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, returnVal2=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1958] COND TRUE s == NP [L1959] s = IPC [L1960] lowerDriverReturn = returnVal2 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, returnVal2=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1981] return (returnVal2); VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \result=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, returnVal2=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1626] RET, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IofCallDriver(deviceExtension__TargetDeviceObject, Irp)=0, IPC=7, Irp=0, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] tmp = IofCallDriver(deviceExtension__TargetDeviceObject, Irp) [L1628] return (tmp); VAL [\old(DeviceObject)=0, \old(Irp)=0, \result=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp=0, UNLOADED=0] [L348] RET, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L348] status = CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L363] return (status); VAL [\old(DeviceObject)=0, \old(Irp)=0, \result=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0] [L1798] RET, EXPR CdAudioDeviceControl(devobj, pirp) [L1798] status = CdAudioDeviceControl(devobj, pirp) [L1819] COND FALSE !(\read(we_should_unload)) VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1825] COND TRUE pended == 1 VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1826] COND FALSE !(s == NP) VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1833] COND TRUE pended == 1 VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1834] COND FALSE !(s == MPR3) VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1841] COND TRUE s != UNLOADED VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1842] COND TRUE status != -1 VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1843] COND TRUE s != SKIP2 VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1844] COND FALSE !(s != IPC) VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1857] COND FALSE !(pended != 1) VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1869] COND TRUE status != 259 VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1871] CALL errorFn() VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L59] reach_error() VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] - UnprovableResult [Line: 1717]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 471 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 54.1s, OverallIterations: 65, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 41.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21046 SdHoareTripleChecker+Valid, 34.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20605 mSDsluCounter, 154619 SdHoareTripleChecker+Invalid, 29.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 119565 mSDsCounter, 5585 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39531 IncrementalHoareTripleChecker+Invalid, 45116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5585 mSolverCounterUnsat, 35054 mSDtfsCounter, 39531 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 880 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 605 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1073occurred in iteration=10, InterpolantAutomatonStates: 558, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 64 MinimizatonAttempts, 2819 StatesRemovedByMinimization, 59 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 2863 NumberOfCodeBlocks, 2863 NumberOfCodeBlocksAsserted, 65 NumberOfCheckSat, 2741 ConstructedInterpolants, 0 QuantifiedInterpolants, 7715 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 64 InterpolantComputations, 64 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-02 21:12:17,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:12:20,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:12:20,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:12:20,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:12:20,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:12:20,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:12:20,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:12:20,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:12:20,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:12:20,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:12:20,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:12:20,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:12:20,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:12:20,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:12:20,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:12:20,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:12:20,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:12:20,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:12:20,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:12:20,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:12:20,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:12:20,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:12:20,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:12:20,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:12:20,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:12:20,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:12:20,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:12:20,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:12:20,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:12:20,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:12:20,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:12:20,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:12:20,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:12:20,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:12:20,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:12:20,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:12:20,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:12:20,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:12:20,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:12:20,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:12:20,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:12:20,196 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-02 21:12:20,234 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:12:20,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:12:20,235 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:12:20,236 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:12:20,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:12:20,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:12:20,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:12:20,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:12:20,238 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:12:20,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:12:20,238 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:12:20,238 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:12:20,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:12:20,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:12:20,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:12:20,239 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-02 21:12:20,239 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-02 21:12:20,240 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-02 21:12:20,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:12:20,240 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 21:12:20,240 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 21:12:20,241 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 21:12:20,241 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:12:20,241 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:12:20,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:12:20,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:12:20,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:12:20,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:12:20,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:12:20,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:12:20,243 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 21:12:20,243 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 21:12:20,243 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 21:12:20,243 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 [2022-11-02 21:12:20,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:12:20,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:12:20,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:12:20,689 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:12:20,690 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:12:20,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2022-11-02 21:12:20,784 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/data/736b0669e/195bc4f5da5942b2b63b8941e8b51826/FLAG1ecb260c8 [2022-11-02 21:12:21,452 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:12:21,453 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2022-11-02 21:12:21,494 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/data/736b0669e/195bc4f5da5942b2b63b8941e8b51826/FLAG1ecb260c8 [2022-11-02 21:12:21,683 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/data/736b0669e/195bc4f5da5942b2b63b8941e8b51826 [2022-11-02 21:12:21,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:12:21,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:12:21,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:12:21,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:12:21,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:12:21,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:12:21" (1/1) ... [2022-11-02 21:12:21,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21f943bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:21, skipping insertion in model container [2022-11-02 21:12:21,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:12:21" (1/1) ... [2022-11-02 21:12:21,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:12:21,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:12:22,070 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2022-11-02 21:12:22,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:12:22,396 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:12:22,410 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2022-11-02 21:12:22,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:12:22,519 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:12:22,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:22 WrapperNode [2022-11-02 21:12:22,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:12:22,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:12:22,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:12:22,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:12:22,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:22" (1/1) ... [2022-11-02 21:12:22,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:22" (1/1) ... [2022-11-02 21:12:22,646 INFO L138 Inliner]: procedures = 41, calls = 108, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 1444 [2022-11-02 21:12:22,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:12:22,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:12:22,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:12:22,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:12:22,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:22" (1/1) ... [2022-11-02 21:12:22,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:22" (1/1) ... [2022-11-02 21:12:22,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:22" (1/1) ... [2022-11-02 21:12:22,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:22" (1/1) ... [2022-11-02 21:12:22,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:22" (1/1) ... [2022-11-02 21:12:22,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:22" (1/1) ... [2022-11-02 21:12:22,720 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:22" (1/1) ... [2022-11-02 21:12:22,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:22" (1/1) ... [2022-11-02 21:12:22,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:12:22,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:12:22,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:12:22,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:12:22,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:22" (1/1) ... [2022-11-02 21:12:22,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:12:22,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:12:22,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:12:22,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:12:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2022-11-02 21:12:22,844 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2022-11-02 21:12:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:12:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn [2022-11-02 21:12:22,845 INFO L138 BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn [2022-11-02 21:12:22,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-02 21:12:22,845 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-11-02 21:12:22,847 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-11-02 21:12:22,847 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2022-11-02 21:12:22,847 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2022-11-02 21:12:22,848 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-11-02 21:12:22,848 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-11-02 21:12:22,848 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-11-02 21:12:22,849 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-11-02 21:12:22,849 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2022-11-02 21:12:22,849 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2022-11-02 21:12:22,850 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2022-11-02 21:12:22,850 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2022-11-02 21:12:22,850 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2022-11-02 21:12:22,850 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2022-11-02 21:12:22,850 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-11-02 21:12:22,851 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-11-02 21:12:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-11-02 21:12:22,851 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-11-02 21:12:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2022-11-02 21:12:22,851 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2022-11-02 21:12:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:12:22,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:12:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2022-11-02 21:12:22,852 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2022-11-02 21:12:23,162 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:12:23,165 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:12:23,417 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:12:23,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-11-02 21:12:23,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-11-02 21:12:23,598 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:12:23,625 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-11-02 21:12:23,625 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-11-02 21:12:23,636 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:12:23,637 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:12:23,642 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:12:23,658 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:12:23,676 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:12:23,681 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:12:23,686 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:12:24,583 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L305: CdAudioPnp_#res#1 := 0bv32; [2022-11-02 21:12:24,583 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##258: assume !false; [2022-11-02 21:12:24,584 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##257: assume false; [2022-11-02 21:12:24,584 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##286: assume !false; [2022-11-02 21:12:24,584 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##285: assume false; [2022-11-02 21:12:24,585 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !false; [2022-11-02 21:12:24,585 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume false; [2022-11-02 21:12:24,585 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##133: assume false; [2022-11-02 21:12:24,585 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##134: assume !false; [2022-11-02 21:12:24,586 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2022-11-02 21:12:24,587 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2022-11-02 21:12:24,587 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-11-02 21:12:24,588 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-11-02 21:12:24,588 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##331: assume false; [2022-11-02 21:12:24,588 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##332: assume !false; [2022-11-02 21:12:24,658 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:12:24,668 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:12:24,669 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 21:12:24,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:12:24 BoogieIcfgContainer [2022-11-02 21:12:24,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:12:24,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:12:24,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:12:24,678 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:12:24,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:12:21" (1/3) ... [2022-11-02 21:12:24,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bae5c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:12:24, skipping insertion in model container [2022-11-02 21:12:24,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:22" (2/3) ... [2022-11-02 21:12:24,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bae5c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:12:24, skipping insertion in model container [2022-11-02 21:12:24,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:12:24" (3/3) ... [2022-11-02 21:12:24,682 INFO L112 eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-1.c [2022-11-02 21:12:24,703 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:12:24,704 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-02 21:12:24,763 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:12:24,770 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4749eaed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:12:24,770 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-02 21:12:24,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 471 states, 368 states have (on average 1.5108695652173914) internal successors, (556), 388 states have internal predecessors, (556), 87 states have call successors, (87), 13 states have call predecessors, (87), 13 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) [2022-11-02 21:12:24,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-02 21:12:24,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:24,785 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:24,786 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:24,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:24,792 INFO L85 PathProgramCache]: Analyzing trace with hash 2107937846, now seen corresponding path program 1 times [2022-11-02 21:12:24,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:24,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203356447] [2022-11-02 21:12:24,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:24,807 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:24,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:24,814 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:24,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 21:12:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:25,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:12:25,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:25,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:25,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:25,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:25,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203356447] [2022-11-02 21:12:25,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [203356447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:25,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:25,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:12:25,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023906824] [2022-11-02 21:12:25,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:25,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:12:25,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:25,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:12:25,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:25,097 INFO L87 Difference]: Start difference. First operand has 471 states, 368 states have (on average 1.5108695652173914) internal successors, (556), 388 states have internal predecessors, (556), 87 states have call successors, (87), 13 states have call predecessors, (87), 13 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:25,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:25,235 INFO L93 Difference]: Finished difference Result 623 states and 925 transitions. [2022-11-02 21:12:25,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:12:25,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-02 21:12:25,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:25,264 INFO L225 Difference]: With dead ends: 623 [2022-11-02 21:12:25,266 INFO L226 Difference]: Without dead ends: 619 [2022-11-02 21:12:25,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:25,274 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 690 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:25,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 952 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:12:25,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2022-11-02 21:12:25,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 603. [2022-11-02 21:12:25,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 486 states have (on average 1.4732510288065843) internal successors, (716), 494 states have internal predecessors, (716), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-11-02 21:12:25,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 904 transitions. [2022-11-02 21:12:25,403 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 904 transitions. Word has length 8 [2022-11-02 21:12:25,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:25,404 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 904 transitions. [2022-11-02 21:12:25,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:25,404 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 904 transitions. [2022-11-02 21:12:25,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 21:12:25,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:25,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:25,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:25,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:25,618 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:25,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:25,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1313128955, now seen corresponding path program 1 times [2022-11-02 21:12:25,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:25,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624952986] [2022-11-02 21:12:25,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:25,620 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:25,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:25,622 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:25,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 21:12:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:25,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:12:25,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:25,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:25,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:25,834 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:25,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624952986] [2022-11-02 21:12:25,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624952986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:25,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:25,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:12:25,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572559419] [2022-11-02 21:12:25,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:25,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:12:25,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:25,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:12:25,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:25,844 INFO L87 Difference]: Start difference. First operand 603 states and 904 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:25,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:25,904 INFO L93 Difference]: Finished difference Result 606 states and 905 transitions. [2022-11-02 21:12:25,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:12:25,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-02 21:12:25,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:25,909 INFO L225 Difference]: With dead ends: 606 [2022-11-02 21:12:25,909 INFO L226 Difference]: Without dead ends: 606 [2022-11-02 21:12:25,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:25,911 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 385 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:25,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 946 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:12:25,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-11-02 21:12:25,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 603. [2022-11-02 21:12:25,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 486 states have (on average 1.47119341563786) internal successors, (715), 494 states have internal predecessors, (715), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-11-02 21:12:25,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 903 transitions. [2022-11-02 21:12:25,939 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 903 transitions. Word has length 9 [2022-11-02 21:12:25,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:25,940 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 903 transitions. [2022-11-02 21:12:25,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:25,940 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 903 transitions. [2022-11-02 21:12:25,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 21:12:25,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:25,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:25,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:26,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:26,153 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:26,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:26,153 INFO L85 PathProgramCache]: Analyzing trace with hash 929457737, now seen corresponding path program 1 times [2022-11-02 21:12:26,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:26,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522612324] [2022-11-02 21:12:26,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:26,154 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:26,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:26,155 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:26,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 21:12:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:26,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:12:26,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:26,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:26,344 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:26,344 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:26,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522612324] [2022-11-02 21:12:26,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522612324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:26,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:26,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:12:26,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506483087] [2022-11-02 21:12:26,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:26,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:12:26,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:26,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:12:26,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:26,346 INFO L87 Difference]: Start difference. First operand 603 states and 903 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:26,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:26,481 INFO L93 Difference]: Finished difference Result 602 states and 902 transitions. [2022-11-02 21:12:26,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:12:26,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-02 21:12:26,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:26,485 INFO L225 Difference]: With dead ends: 602 [2022-11-02 21:12:26,486 INFO L226 Difference]: Without dead ends: 599 [2022-11-02 21:12:26,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:26,487 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 418 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:26,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 850 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:12:26,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-11-02 21:12:26,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2022-11-02 21:12:26,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 483 states have (on average 1.453416149068323) internal successors, (702), 490 states have internal predecessors, (702), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-11-02 21:12:26,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 890 transitions. [2022-11-02 21:12:26,511 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 890 transitions. Word has length 9 [2022-11-02 21:12:26,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:26,512 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 890 transitions. [2022-11-02 21:12:26,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:26,512 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 890 transitions. [2022-11-02 21:12:26,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-02 21:12:26,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:26,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:26,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:26,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:26,725 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:26,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:26,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1469618489, now seen corresponding path program 1 times [2022-11-02 21:12:26,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:26,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930134151] [2022-11-02 21:12:26,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:26,726 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:26,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:26,727 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:26,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 21:12:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:26,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:12:26,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:26,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:26,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:26,890 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:26,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930134151] [2022-11-02 21:12:26,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930134151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:26,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:26,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:12:26,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719035786] [2022-11-02 21:12:26,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:26,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:12:26,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:26,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:12:26,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:26,893 INFO L87 Difference]: Start difference. First operand 599 states and 890 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:26,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:26,987 INFO L93 Difference]: Finished difference Result 602 states and 892 transitions. [2022-11-02 21:12:26,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:12:26,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-02 21:12:26,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:26,991 INFO L225 Difference]: With dead ends: 602 [2022-11-02 21:12:26,992 INFO L226 Difference]: Without dead ends: 599 [2022-11-02 21:12:26,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:26,993 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 0 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:26,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1335 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:12:26,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-11-02 21:12:27,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2022-11-02 21:12:27,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 483 states have (on average 1.4513457556935818) internal successors, (701), 490 states have internal predecessors, (701), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-11-02 21:12:27,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 889 transitions. [2022-11-02 21:12:27,016 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 889 transitions. Word has length 13 [2022-11-02 21:12:27,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:27,017 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 889 transitions. [2022-11-02 21:12:27,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:27,017 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 889 transitions. [2022-11-02 21:12:27,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 21:12:27,018 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:27,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:27,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-11-02 21:12:27,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:27,230 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:27,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:27,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1712839809, now seen corresponding path program 1 times [2022-11-02 21:12:27,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:27,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801265689] [2022-11-02 21:12:27,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:27,233 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:27,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:27,234 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:27,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-02 21:12:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:27,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:12:27,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:27,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:27,408 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:27,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:27,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801265689] [2022-11-02 21:12:27,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801265689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:27,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:27,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:12:27,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136478291] [2022-11-02 21:12:27,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:27,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:12:27,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:27,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:12:27,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:27,411 INFO L87 Difference]: Start difference. First operand 599 states and 889 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:27,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:27,687 INFO L93 Difference]: Finished difference Result 851 states and 1244 transitions. [2022-11-02 21:12:27,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:12:27,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-02 21:12:27,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:27,693 INFO L225 Difference]: With dead ends: 851 [2022-11-02 21:12:27,693 INFO L226 Difference]: Without dead ends: 850 [2022-11-02 21:12:27,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:27,694 INFO L413 NwaCegarLoop]: 799 mSDtfsCounter, 567 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:27,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 1024 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:12:27,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2022-11-02 21:12:27,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 799. [2022-11-02 21:12:27,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 656 states have (on average 1.4222560975609757) internal successors, (933), 649 states have internal predecessors, (933), 107 states have call successors, (107), 31 states have call predecessors, (107), 35 states have return successors, (136), 122 states have call predecessors, (136), 96 states have call successors, (136) [2022-11-02 21:12:27,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1176 transitions. [2022-11-02 21:12:27,724 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1176 transitions. Word has length 15 [2022-11-02 21:12:27,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:27,724 INFO L495 AbstractCegarLoop]: Abstraction has 799 states and 1176 transitions. [2022-11-02 21:12:27,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:27,725 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1176 transitions. [2022-11-02 21:12:27,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-02 21:12:27,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:27,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:27,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:27,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:27,938 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:27,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:27,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1930286977, now seen corresponding path program 1 times [2022-11-02 21:12:27,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:27,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [783032138] [2022-11-02 21:12:27,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:27,939 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:27,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:27,941 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:27,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-02 21:12:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:28,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 21:12:28,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:28,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:28,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:28,142 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:28,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [783032138] [2022-11-02 21:12:28,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [783032138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:28,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:28,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:12:28,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112398893] [2022-11-02 21:12:28,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:28,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:12:28,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:28,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:12:28,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:28,144 INFO L87 Difference]: Start difference. First operand 799 states and 1176 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:28,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:28,187 INFO L93 Difference]: Finished difference Result 875 states and 1272 transitions. [2022-11-02 21:12:28,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:12:28,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-02 21:12:28,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:28,199 INFO L225 Difference]: With dead ends: 875 [2022-11-02 21:12:28,199 INFO L226 Difference]: Without dead ends: 875 [2022-11-02 21:12:28,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:28,200 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 601 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:28,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 870 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:12:28,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2022-11-02 21:12:28,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 847. [2022-11-02 21:12:28,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 699 states have (on average 1.4406294706723892) internal successors, (1007), 703 states have internal predecessors, (1007), 106 states have call successors, (106), 35 states have call predecessors, (106), 41 states have return successors, (127), 108 states have call predecessors, (127), 98 states have call successors, (127) [2022-11-02 21:12:28,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1240 transitions. [2022-11-02 21:12:28,287 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1240 transitions. Word has length 19 [2022-11-02 21:12:28,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:28,288 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1240 transitions. [2022-11-02 21:12:28,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:28,288 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1240 transitions. [2022-11-02 21:12:28,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-02 21:12:28,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:28,290 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:28,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:28,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:28,508 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:28,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:28,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1396316142, now seen corresponding path program 1 times [2022-11-02 21:12:28,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:28,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489373793] [2022-11-02 21:12:28,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:28,509 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:28,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:28,510 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:28,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-02 21:12:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:28,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:12:28,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:28,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:28,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:28,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:28,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489373793] [2022-11-02 21:12:28,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489373793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:28,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:28,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:12:28,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375857344] [2022-11-02 21:12:28,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:28,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:12:28,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:28,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:12:28,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:12:28,861 INFO L87 Difference]: Start difference. First operand 847 states and 1240 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:29,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:29,551 INFO L93 Difference]: Finished difference Result 894 states and 1294 transitions. [2022-11-02 21:12:29,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:12:29,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-02 21:12:29,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:29,556 INFO L225 Difference]: With dead ends: 894 [2022-11-02 21:12:29,557 INFO L226 Difference]: Without dead ends: 894 [2022-11-02 21:12:29,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:12:29,558 INFO L413 NwaCegarLoop]: 721 mSDtfsCounter, 1028 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:29,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1029 Valid, 875 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:12:29,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2022-11-02 21:12:29,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 844. [2022-11-02 21:12:29,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 696 states have (on average 1.4295977011494252) internal successors, (995), 700 states have internal predecessors, (995), 106 states have call successors, (106), 35 states have call predecessors, (106), 41 states have return successors, (127), 108 states have call predecessors, (127), 98 states have call successors, (127) [2022-11-02 21:12:29,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1228 transitions. [2022-11-02 21:12:29,594 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1228 transitions. Word has length 21 [2022-11-02 21:12:29,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:29,594 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1228 transitions. [2022-11-02 21:12:29,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:29,595 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1228 transitions. [2022-11-02 21:12:29,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-02 21:12:29,597 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:29,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:29,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:29,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:29,810 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:29,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:29,811 INFO L85 PathProgramCache]: Analyzing trace with hash -401986427, now seen corresponding path program 1 times [2022-11-02 21:12:29,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:29,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446669324] [2022-11-02 21:12:29,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:29,811 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:29,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:29,813 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:29,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-02 21:12:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:29,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:12:29,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:29,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:29,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:29,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:29,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446669324] [2022-11-02 21:12:29,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446669324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:29,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:29,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:12:29,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16864402] [2022-11-02 21:12:29,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:29,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:12:29,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:29,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:12:29,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:29,984 INFO L87 Difference]: Start difference. First operand 844 states and 1228 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:30,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:30,078 INFO L93 Difference]: Finished difference Result 843 states and 1225 transitions. [2022-11-02 21:12:30,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:12:30,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-02 21:12:30,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:30,083 INFO L225 Difference]: With dead ends: 843 [2022-11-02 21:12:30,083 INFO L226 Difference]: Without dead ends: 843 [2022-11-02 21:12:30,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:30,086 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 22 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:30,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1254 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:12:30,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2022-11-02 21:12:30,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 843. [2022-11-02 21:12:30,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 696 states have (on average 1.4267241379310345) internal successors, (993), 699 states have internal predecessors, (993), 105 states have call successors, (105), 35 states have call predecessors, (105), 41 states have return successors, (127), 108 states have call predecessors, (127), 98 states have call successors, (127) [2022-11-02 21:12:30,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1225 transitions. [2022-11-02 21:12:30,116 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1225 transitions. Word has length 23 [2022-11-02 21:12:30,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:30,116 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 1225 transitions. [2022-11-02 21:12:30,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:30,117 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1225 transitions. [2022-11-02 21:12:30,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-02 21:12:30,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:30,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:30,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:30,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:30,336 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:30,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:30,336 INFO L85 PathProgramCache]: Analyzing trace with hash -607443031, now seen corresponding path program 1 times [2022-11-02 21:12:30,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:30,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420065748] [2022-11-02 21:12:30,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:30,337 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:30,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:30,339 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:30,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-02 21:12:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:30,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:12:30,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:30,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:30,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:30,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:30,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420065748] [2022-11-02 21:12:30,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1420065748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:30,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:30,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:12:30,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469694060] [2022-11-02 21:12:30,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:30,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:12:30,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:30,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:12:30,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:30,544 INFO L87 Difference]: Start difference. First operand 843 states and 1225 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:30,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:30,574 INFO L93 Difference]: Finished difference Result 761 states and 1092 transitions. [2022-11-02 21:12:30,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:12:30,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-11-02 21:12:30,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:30,578 INFO L225 Difference]: With dead ends: 761 [2022-11-02 21:12:30,578 INFO L226 Difference]: Without dead ends: 761 [2022-11-02 21:12:30,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:30,579 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 186 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:30,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 1263 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:12:30,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-11-02 21:12:30,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 736. [2022-11-02 21:12:30,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 606 states have (on average 1.4207920792079207) internal successors, (861), 609 states have internal predecessors, (861), 95 states have call successors, (95), 30 states have call predecessors, (95), 34 states have return successors, (107), 96 states have call predecessors, (107), 88 states have call successors, (107) [2022-11-02 21:12:30,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1063 transitions. [2022-11-02 21:12:30,600 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1063 transitions. Word has length 35 [2022-11-02 21:12:30,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:30,601 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 1063 transitions. [2022-11-02 21:12:30,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:30,601 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1063 transitions. [2022-11-02 21:12:30,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-02 21:12:30,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:30,603 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:30,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:30,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:30,817 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:30,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:30,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1380818810, now seen corresponding path program 1 times [2022-11-02 21:12:30,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:30,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286911172] [2022-11-02 21:12:30,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:30,818 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:30,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:30,819 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:30,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-02 21:12:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:30,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:12:30,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:31,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:31,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:31,008 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:31,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286911172] [2022-11-02 21:12:31,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286911172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:31,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:31,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:12:31,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243112670] [2022-11-02 21:12:31,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:31,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:12:31,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:31,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:12:31,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:31,010 INFO L87 Difference]: Start difference. First operand 736 states and 1063 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:31,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:31,038 INFO L93 Difference]: Finished difference Result 667 states and 953 transitions. [2022-11-02 21:12:31,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:12:31,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-11-02 21:12:31,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:31,041 INFO L225 Difference]: With dead ends: 667 [2022-11-02 21:12:31,042 INFO L226 Difference]: Without dead ends: 667 [2022-11-02 21:12:31,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:31,042 INFO L413 NwaCegarLoop]: 740 mSDtfsCounter, 159 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:31,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 1313 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:12:31,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2022-11-02 21:12:31,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 640. [2022-11-02 21:12:31,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 528 states have (on average 1.4204545454545454) internal successors, (750), 534 states have internal predecessors, (750), 84 states have call successors, (84), 24 states have call predecessors, (84), 27 states have return successors, (88), 81 states have call predecessors, (88), 77 states have call successors, (88) [2022-11-02 21:12:31,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 922 transitions. [2022-11-02 21:12:31,060 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 922 transitions. Word has length 35 [2022-11-02 21:12:31,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:31,060 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 922 transitions. [2022-11-02 21:12:31,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:31,061 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 922 transitions. [2022-11-02 21:12:31,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-02 21:12:31,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:31,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:31,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:31,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:31,279 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:31,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:31,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1008894010, now seen corresponding path program 1 times [2022-11-02 21:12:31,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:31,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2116346171] [2022-11-02 21:12:31,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:31,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:31,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:31,281 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:31,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-02 21:12:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:31,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:12:31,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:31,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:31,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:31,533 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:31,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2116346171] [2022-11-02 21:12:31,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2116346171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:31,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:31,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:12:31,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904411620] [2022-11-02 21:12:31,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:31,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:12:31,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:31,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:12:31,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:12:31,535 INFO L87 Difference]: Start difference. First operand 640 states and 922 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:32,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:32,029 INFO L93 Difference]: Finished difference Result 640 states and 920 transitions. [2022-11-02 21:12:32,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:12:32,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-02 21:12:32,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:32,033 INFO L225 Difference]: With dead ends: 640 [2022-11-02 21:12:32,033 INFO L226 Difference]: Without dead ends: 640 [2022-11-02 21:12:32,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:12:32,034 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 681 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:32,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 1096 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:12:32,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2022-11-02 21:12:32,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 640. [2022-11-02 21:12:32,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 528 states have (on average 1.4166666666666667) internal successors, (748), 534 states have internal predecessors, (748), 84 states have call successors, (84), 24 states have call predecessors, (84), 27 states have return successors, (88), 81 states have call predecessors, (88), 77 states have call successors, (88) [2022-11-02 21:12:32,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 920 transitions. [2022-11-02 21:12:32,060 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 920 transitions. Word has length 32 [2022-11-02 21:12:32,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:32,060 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 920 transitions. [2022-11-02 21:12:32,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:32,061 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 920 transitions. [2022-11-02 21:12:32,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 21:12:32,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:32,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:32,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:32,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:32,275 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:32,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:32,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1030908419, now seen corresponding path program 1 times [2022-11-02 21:12:32,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:32,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572992297] [2022-11-02 21:12:32,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:32,278 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:32,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:32,279 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:32,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-02 21:12:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:32,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:12:32,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:32,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:32,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:32,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:32,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572992297] [2022-11-02 21:12:32,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1572992297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:32,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:32,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:12:32,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59856027] [2022-11-02 21:12:32,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:32,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:12:32,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:32,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:12:32,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:32,439 INFO L87 Difference]: Start difference. First operand 640 states and 920 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:32,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:32,463 INFO L93 Difference]: Finished difference Result 659 states and 939 transitions. [2022-11-02 21:12:32,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:12:32,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-11-02 21:12:32,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:32,467 INFO L225 Difference]: With dead ends: 659 [2022-11-02 21:12:32,467 INFO L226 Difference]: Without dead ends: 659 [2022-11-02 21:12:32,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:32,468 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 569 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:32,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 817 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:12:32,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2022-11-02 21:12:32,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 639. [2022-11-02 21:12:32,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 527 states have (on average 1.413662239089184) internal successors, (745), 533 states have internal predecessors, (745), 84 states have call successors, (84), 24 states have call predecessors, (84), 27 states have return successors, (86), 81 states have call predecessors, (86), 77 states have call successors, (86) [2022-11-02 21:12:32,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 915 transitions. [2022-11-02 21:12:32,485 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 915 transitions. Word has length 36 [2022-11-02 21:12:32,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:32,485 INFO L495 AbstractCegarLoop]: Abstraction has 639 states and 915 transitions. [2022-11-02 21:12:32,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:32,486 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 915 transitions. [2022-11-02 21:12:32,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-02 21:12:32,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:32,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:32,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:32,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:32,705 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:32,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:32,705 INFO L85 PathProgramCache]: Analyzing trace with hash 138802049, now seen corresponding path program 1 times [2022-11-02 21:12:32,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:32,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157281207] [2022-11-02 21:12:32,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:32,706 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:32,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:32,707 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:32,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-02 21:12:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:32,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:12:32,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:32,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:32,887 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:32,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:32,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157281207] [2022-11-02 21:12:32,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157281207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:32,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:32,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:12:32,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590770142] [2022-11-02 21:12:32,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:32,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:12:32,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:32,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:12:32,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:32,890 INFO L87 Difference]: Start difference. First operand 639 states and 915 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:33,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:33,022 INFO L93 Difference]: Finished difference Result 767 states and 1086 transitions. [2022-11-02 21:12:33,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:12:33,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-02 21:12:33,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:33,027 INFO L225 Difference]: With dead ends: 767 [2022-11-02 21:12:33,028 INFO L226 Difference]: Without dead ends: 767 [2022-11-02 21:12:33,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:33,029 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 135 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1363 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:33,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1363 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:12:33,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2022-11-02 21:12:33,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 690. [2022-11-02 21:12:33,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 574 states have (on average 1.386759581881533) internal successors, (796), 573 states have internal predecessors, (796), 84 states have call successors, (84), 24 states have call predecessors, (84), 31 states have return successors, (97), 92 states have call predecessors, (97), 77 states have call successors, (97) [2022-11-02 21:12:33,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 977 transitions. [2022-11-02 21:12:33,052 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 977 transitions. Word has length 34 [2022-11-02 21:12:33,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:33,053 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 977 transitions. [2022-11-02 21:12:33,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:33,053 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 977 transitions. [2022-11-02 21:12:33,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-02 21:12:33,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:33,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:33,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:33,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:33,268 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:33,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:33,268 INFO L85 PathProgramCache]: Analyzing trace with hash -298326081, now seen corresponding path program 1 times [2022-11-02 21:12:33,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:33,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342236780] [2022-11-02 21:12:33,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:33,269 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:33,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:33,270 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:33,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-02 21:12:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:33,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:12:33,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:33,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:33,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:33,544 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:33,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342236780] [2022-11-02 21:12:33,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342236780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:33,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:33,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:12:33,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550806989] [2022-11-02 21:12:33,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:33,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:12:33,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:33,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:12:33,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:12:33,547 INFO L87 Difference]: Start difference. First operand 690 states and 977 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:34,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:34,028 INFO L93 Difference]: Finished difference Result 671 states and 947 transitions. [2022-11-02 21:12:34,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:12:34,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-02 21:12:34,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:34,032 INFO L225 Difference]: With dead ends: 671 [2022-11-02 21:12:34,033 INFO L226 Difference]: Without dead ends: 671 [2022-11-02 21:12:34,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:12:34,034 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 673 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:34,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 1104 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:12:34,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2022-11-02 21:12:34,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 671. [2022-11-02 21:12:34,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 557 states have (on average 1.3913824057450628) internal successors, (775), 563 states have internal predecessors, (775), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2022-11-02 21:12:34,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 947 transitions. [2022-11-02 21:12:34,053 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 947 transitions. Word has length 34 [2022-11-02 21:12:34,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:34,054 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 947 transitions. [2022-11-02 21:12:34,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:34,054 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 947 transitions. [2022-11-02 21:12:34,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-02 21:12:34,056 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:34,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:34,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:34,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:34,271 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:34,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:34,271 INFO L85 PathProgramCache]: Analyzing trace with hash 452395651, now seen corresponding path program 1 times [2022-11-02 21:12:34,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:34,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831923294] [2022-11-02 21:12:34,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:34,272 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:34,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:34,275 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:34,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-02 21:12:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:34,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:12:34,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:34,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:34,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:34,587 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:34,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1831923294] [2022-11-02 21:12:34,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1831923294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:34,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:34,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:12:34,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374767365] [2022-11-02 21:12:34,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:34,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:12:34,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:34,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:12:34,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:12:34,590 INFO L87 Difference]: Start difference. First operand 671 states and 947 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:35,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:35,153 INFO L93 Difference]: Finished difference Result 746 states and 1053 transitions. [2022-11-02 21:12:35,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:12:35,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-11-02 21:12:35,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:35,157 INFO L225 Difference]: With dead ends: 746 [2022-11-02 21:12:35,157 INFO L226 Difference]: Without dead ends: 746 [2022-11-02 21:12:35,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:12:35,158 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 745 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:35,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 1199 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:12:35,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-11-02 21:12:35,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 674. [2022-11-02 21:12:35,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 560 states have (on average 1.3910714285714285) internal successors, (779), 566 states have internal predecessors, (779), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2022-11-02 21:12:35,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 951 transitions. [2022-11-02 21:12:35,184 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 951 transitions. Word has length 35 [2022-11-02 21:12:35,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:35,184 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 951 transitions. [2022-11-02 21:12:35,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:35,185 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 951 transitions. [2022-11-02 21:12:35,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-02 21:12:35,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:35,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:35,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:35,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:35,400 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:35,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:35,401 INFO L85 PathProgramCache]: Analyzing trace with hash 452672481, now seen corresponding path program 1 times [2022-11-02 21:12:35,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:35,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230528413] [2022-11-02 21:12:35,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:35,401 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:35,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:35,403 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:35,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-02 21:12:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:35,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 21:12:35,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:35,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:35,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:35,678 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:35,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230528413] [2022-11-02 21:12:35,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230528413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:35,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:35,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:35,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772762769] [2022-11-02 21:12:35,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:35,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:35,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:35,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:35,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:35,682 INFO L87 Difference]: Start difference. First operand 674 states and 951 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:35,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:35,851 INFO L93 Difference]: Finished difference Result 690 states and 967 transitions. [2022-11-02 21:12:35,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:12:35,852 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-11-02 21:12:35,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:35,855 INFO L225 Difference]: With dead ends: 690 [2022-11-02 21:12:35,855 INFO L226 Difference]: Without dead ends: 673 [2022-11-02 21:12:35,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:12:35,856 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 52 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 3220 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:35,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 3220 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:12:35,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-11-02 21:12:35,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 673. [2022-11-02 21:12:35,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 559 states have (on average 1.3899821109123434) internal successors, (777), 565 states have internal predecessors, (777), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2022-11-02 21:12:35,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 949 transitions. [2022-11-02 21:12:35,896 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 949 transitions. Word has length 35 [2022-11-02 21:12:35,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:35,897 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 949 transitions. [2022-11-02 21:12:35,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:35,898 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 949 transitions. [2022-11-02 21:12:35,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-02 21:12:35,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:35,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:35,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:36,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:36,113 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:36,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:36,114 INFO L85 PathProgramCache]: Analyzing trace with hash 2080196380, now seen corresponding path program 1 times [2022-11-02 21:12:36,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:36,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1134767383] [2022-11-02 21:12:36,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:36,115 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:36,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:36,116 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:36,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-02 21:12:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:36,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 21:12:36,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:36,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:36,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:36,281 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:36,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1134767383] [2022-11-02 21:12:36,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1134767383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:36,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:36,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:12:36,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608670756] [2022-11-02 21:12:36,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:36,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:12:36,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:36,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:12:36,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:12:36,284 INFO L87 Difference]: Start difference. First operand 673 states and 949 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:36,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:36,406 INFO L93 Difference]: Finished difference Result 699 states and 981 transitions. [2022-11-02 21:12:36,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:12:36,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-11-02 21:12:36,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:36,410 INFO L225 Difference]: With dead ends: 699 [2022-11-02 21:12:36,410 INFO L226 Difference]: Without dead ends: 699 [2022-11-02 21:12:36,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:12:36,411 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 49 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 1897 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:36,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 1897 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:12:36,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-11-02 21:12:36,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 675. [2022-11-02 21:12:36,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 561 states have (on average 1.3885918003565063) internal successors, (779), 567 states have internal predecessors, (779), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2022-11-02 21:12:36,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 951 transitions. [2022-11-02 21:12:36,429 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 951 transitions. Word has length 37 [2022-11-02 21:12:36,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:36,429 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 951 transitions. [2022-11-02 21:12:36,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:36,430 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 951 transitions. [2022-11-02 21:12:36,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-02 21:12:36,432 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:36,432 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:36,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:36,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:36,644 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:36,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:36,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1792069090, now seen corresponding path program 1 times [2022-11-02 21:12:36,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:36,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466032045] [2022-11-02 21:12:36,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:36,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:36,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:36,646 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:36,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-02 21:12:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:36,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:12:36,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:36,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:36,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:36,834 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:36,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466032045] [2022-11-02 21:12:36,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [466032045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:36,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:36,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:12:36,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246298863] [2022-11-02 21:12:36,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:36,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:12:36,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:36,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:12:36,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:36,837 INFO L87 Difference]: Start difference. First operand 675 states and 951 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:36,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:36,944 INFO L93 Difference]: Finished difference Result 695 states and 973 transitions. [2022-11-02 21:12:36,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:12:36,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-11-02 21:12:36,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:36,948 INFO L225 Difference]: With dead ends: 695 [2022-11-02 21:12:36,949 INFO L226 Difference]: Without dead ends: 693 [2022-11-02 21:12:36,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:36,949 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 63 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:36,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 1222 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:12:36,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2022-11-02 21:12:36,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 689. [2022-11-02 21:12:36,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 575 states have (on average 1.3843478260869566) internal successors, (796), 581 states have internal predecessors, (796), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2022-11-02 21:12:36,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 968 transitions. [2022-11-02 21:12:36,968 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 968 transitions. Word has length 37 [2022-11-02 21:12:36,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:36,969 INFO L495 AbstractCegarLoop]: Abstraction has 689 states and 968 transitions. [2022-11-02 21:12:36,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:36,969 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 968 transitions. [2022-11-02 21:12:36,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 21:12:36,971 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:36,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:36,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:37,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:37,183 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:37,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:37,185 INFO L85 PathProgramCache]: Analyzing trace with hash 302691164, now seen corresponding path program 1 times [2022-11-02 21:12:37,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:37,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360381374] [2022-11-02 21:12:37,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:37,185 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:37,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:37,187 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:37,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-02 21:12:37,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:37,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 21:12:37,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:37,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:37,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:37,491 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:37,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360381374] [2022-11-02 21:12:37,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360381374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:37,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:37,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:37,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268625725] [2022-11-02 21:12:37,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:37,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:37,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:37,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:37,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:37,493 INFO L87 Difference]: Start difference. First operand 689 states and 968 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:37,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:37,654 INFO L93 Difference]: Finished difference Result 705 states and 984 transitions. [2022-11-02 21:12:37,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:12:37,655 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-11-02 21:12:37,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:37,658 INFO L225 Difference]: With dead ends: 705 [2022-11-02 21:12:37,658 INFO L226 Difference]: Without dead ends: 688 [2022-11-02 21:12:37,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:12:37,659 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 39 mSDsluCounter, 3200 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3848 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:37,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3848 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:12:37,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-11-02 21:12:37,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 688. [2022-11-02 21:12:37,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 574 states have (on average 1.3832752613240418) internal successors, (794), 580 states have internal predecessors, (794), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2022-11-02 21:12:37,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 966 transitions. [2022-11-02 21:12:37,677 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 966 transitions. Word has length 36 [2022-11-02 21:12:37,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:37,678 INFO L495 AbstractCegarLoop]: Abstraction has 688 states and 966 transitions. [2022-11-02 21:12:37,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:37,678 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 966 transitions. [2022-11-02 21:12:37,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 21:12:37,680 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:37,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:37,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:37,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:37,895 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:37,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:37,895 INFO L85 PathProgramCache]: Analyzing trace with hash 914570012, now seen corresponding path program 1 times [2022-11-02 21:12:37,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:37,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608543467] [2022-11-02 21:12:37,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:37,896 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:37,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:37,897 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:37,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-02 21:12:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:38,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 21:12:38,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:38,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:38,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:38,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:38,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608543467] [2022-11-02 21:12:38,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608543467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:38,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:38,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:38,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884324184] [2022-11-02 21:12:38,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:38,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:38,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:38,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:38,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:38,161 INFO L87 Difference]: Start difference. First operand 688 states and 966 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:38,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:38,297 INFO L93 Difference]: Finished difference Result 698 states and 976 transitions. [2022-11-02 21:12:38,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:12:38,298 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-11-02 21:12:38,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:38,301 INFO L225 Difference]: With dead ends: 698 [2022-11-02 21:12:38,302 INFO L226 Difference]: Without dead ends: 673 [2022-11-02 21:12:38,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:12:38,306 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 52 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 3197 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:38,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 3197 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:12:38,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-11-02 21:12:38,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 673. [2022-11-02 21:12:38,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 559 states have (on average 1.3917710196779964) internal successors, (778), 565 states have internal predecessors, (778), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2022-11-02 21:12:38,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 950 transitions. [2022-11-02 21:12:38,329 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 950 transitions. Word has length 36 [2022-11-02 21:12:38,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:38,329 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 950 transitions. [2022-11-02 21:12:38,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:12:38,330 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 950 transitions. [2022-11-02 21:12:38,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-02 21:12:38,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:38,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:38,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:38,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:38,545 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:38,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:38,545 INFO L85 PathProgramCache]: Analyzing trace with hash 366960515, now seen corresponding path program 1 times [2022-11-02 21:12:38,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:38,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802770128] [2022-11-02 21:12:38,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:38,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:38,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:38,547 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:38,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-02 21:12:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:38,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:12:38,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:38,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:38,875 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:38,875 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:38,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802770128] [2022-11-02 21:12:38,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802770128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:38,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:38,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:12:38,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193229448] [2022-11-02 21:12:38,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:38,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:12:38,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:38,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:12:38,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:12:38,878 INFO L87 Difference]: Start difference. First operand 673 states and 950 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:39,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:39,394 INFO L93 Difference]: Finished difference Result 782 states and 1094 transitions. [2022-11-02 21:12:39,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:12:39,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-11-02 21:12:39,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:39,399 INFO L225 Difference]: With dead ends: 782 [2022-11-02 21:12:39,399 INFO L226 Difference]: Without dead ends: 780 [2022-11-02 21:12:39,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:12:39,400 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 749 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:39,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 1135 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:12:39,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2022-11-02 21:12:39,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 702. [2022-11-02 21:12:39,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 586 states have (on average 1.378839590443686) internal successors, (808), 592 states have internal predecessors, (808), 84 states have call successors, (84), 24 states have call predecessors, (84), 31 states have return successors, (90), 85 states have call predecessors, (90), 77 states have call successors, (90) [2022-11-02 21:12:39,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 982 transitions. [2022-11-02 21:12:39,449 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 982 transitions. Word has length 39 [2022-11-02 21:12:39,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:39,449 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 982 transitions. [2022-11-02 21:12:39,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:39,449 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 982 transitions. [2022-11-02 21:12:39,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-02 21:12:39,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:39,452 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:39,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:39,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:39,653 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:39,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:39,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1196068657, now seen corresponding path program 1 times [2022-11-02 21:12:39,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:39,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081092891] [2022-11-02 21:12:39,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:39,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:39,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:39,655 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:39,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-02 21:12:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:39,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:12:39,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:39,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:39,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:39,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:39,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081092891] [2022-11-02 21:12:39,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081092891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:39,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:39,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:39,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554584233] [2022-11-02 21:12:39,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:39,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:39,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:39,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:39,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:39,876 INFO L87 Difference]: Start difference. First operand 702 states and 982 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:40,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:40,095 INFO L93 Difference]: Finished difference Result 720 states and 1001 transitions. [2022-11-02 21:12:40,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:12:40,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-11-02 21:12:40,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:40,099 INFO L225 Difference]: With dead ends: 720 [2022-11-02 21:12:40,099 INFO L226 Difference]: Without dead ends: 700 [2022-11-02 21:12:40,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:12:40,100 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 60 mSDsluCounter, 3061 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3690 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:40,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3690 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:12:40,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2022-11-02 21:12:40,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 700. [2022-11-02 21:12:40,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 584 states have (on average 1.3767123287671232) internal successors, (804), 590 states have internal predecessors, (804), 84 states have call successors, (84), 24 states have call predecessors, (84), 31 states have return successors, (90), 85 states have call predecessors, (90), 77 states have call successors, (90) [2022-11-02 21:12:40,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 978 transitions. [2022-11-02 21:12:40,121 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 978 transitions. Word has length 40 [2022-11-02 21:12:40,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:40,121 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 978 transitions. [2022-11-02 21:12:40,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:40,122 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 978 transitions. [2022-11-02 21:12:40,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-02 21:12:40,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:40,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:40,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:40,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:40,337 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:40,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:40,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1438594100, now seen corresponding path program 1 times [2022-11-02 21:12:40,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:40,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212717693] [2022-11-02 21:12:40,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:40,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:40,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:40,339 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:40,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-02 21:12:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:40,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:12:40,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:40,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:40,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:40,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:40,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212717693] [2022-11-02 21:12:40,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212717693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:40,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:40,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:40,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142032770] [2022-11-02 21:12:40,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:40,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:40,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:40,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:40,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:40,610 INFO L87 Difference]: Start difference. First operand 700 states and 978 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:41,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:41,009 INFO L93 Difference]: Finished difference Result 1246 states and 1751 transitions. [2022-11-02 21:12:41,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:12:41,010 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2022-11-02 21:12:41,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:41,016 INFO L225 Difference]: With dead ends: 1246 [2022-11-02 21:12:41,016 INFO L226 Difference]: Without dead ends: 1246 [2022-11-02 21:12:41,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:12:41,017 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 547 mSDsluCounter, 3201 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 3923 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:41,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 3923 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:12:41,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2022-11-02 21:12:41,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1037. [2022-11-02 21:12:41,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 859 states have (on average 1.4016298020954598) internal successors, (1204), 883 states have internal predecessors, (1204), 126 states have call successors, (126), 41 states have call predecessors, (126), 51 states have return successors, (140), 112 states have call predecessors, (140), 119 states have call successors, (140) [2022-11-02 21:12:41,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1470 transitions. [2022-11-02 21:12:41,049 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1470 transitions. Word has length 43 [2022-11-02 21:12:41,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:41,050 INFO L495 AbstractCegarLoop]: Abstraction has 1037 states and 1470 transitions. [2022-11-02 21:12:41,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:41,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1470 transitions. [2022-11-02 21:12:41,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-02 21:12:41,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:41,053 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:41,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:41,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:41,265 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:41,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:41,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1615816211, now seen corresponding path program 1 times [2022-11-02 21:12:41,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:41,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873110879] [2022-11-02 21:12:41,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:41,267 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:41,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:41,267 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:41,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-02 21:12:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:41,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:12:41,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:41,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:41,462 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:41,462 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:41,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1873110879] [2022-11-02 21:12:41,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1873110879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:41,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:41,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:12:41,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172516458] [2022-11-02 21:12:41,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:41,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:12:41,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:41,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:12:41,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:41,464 INFO L87 Difference]: Start difference. First operand 1037 states and 1470 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 21:12:41,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:41,522 INFO L93 Difference]: Finished difference Result 1012 states and 1434 transitions. [2022-11-02 21:12:41,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:12:41,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2022-11-02 21:12:41,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:41,527 INFO L225 Difference]: With dead ends: 1012 [2022-11-02 21:12:41,528 INFO L226 Difference]: Without dead ends: 1012 [2022-11-02 21:12:41,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:41,529 INFO L413 NwaCegarLoop]: 639 mSDtfsCounter, 9 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:41,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1234 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:12:41,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2022-11-02 21:12:41,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2022-11-02 21:12:41,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 837 states have (on average 1.3990442054958183) internal successors, (1171), 860 states have internal predecessors, (1171), 125 states have call successors, (125), 41 states have call predecessors, (125), 49 states have return successors, (138), 110 states have call predecessors, (138), 119 states have call successors, (138) [2022-11-02 21:12:41,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1434 transitions. [2022-11-02 21:12:41,561 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1434 transitions. Word has length 45 [2022-11-02 21:12:41,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:41,561 INFO L495 AbstractCegarLoop]: Abstraction has 1012 states and 1434 transitions. [2022-11-02 21:12:41,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 21:12:41,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1434 transitions. [2022-11-02 21:12:41,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-02 21:12:41,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:41,565 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:41,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:41,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:41,777 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:41,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:41,778 INFO L85 PathProgramCache]: Analyzing trace with hash -938217641, now seen corresponding path program 1 times [2022-11-02 21:12:41,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:41,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615736997] [2022-11-02 21:12:41,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:41,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:41,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:41,780 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:41,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-02 21:12:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:41,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:12:41,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:42,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:42,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:42,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:42,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615736997] [2022-11-02 21:12:42,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615736997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:42,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:42,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:12:42,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687773223] [2022-11-02 21:12:42,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:42,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:12:42,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:42,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:12:42,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:12:42,124 INFO L87 Difference]: Start difference. First operand 1012 states and 1434 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:42,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:42,416 INFO L93 Difference]: Finished difference Result 1072 states and 1505 transitions. [2022-11-02 21:12:42,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:12:42,417 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-11-02 21:12:42,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:42,422 INFO L225 Difference]: With dead ends: 1072 [2022-11-02 21:12:42,422 INFO L226 Difference]: Without dead ends: 1060 [2022-11-02 21:12:42,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:12:42,423 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 17 mSDsluCounter, 4938 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5574 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:42,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5574 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:12:42,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2022-11-02 21:12:42,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1033. [2022-11-02 21:12:42,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 856 states have (on average 1.394859813084112) internal successors, (1194), 880 states have internal predecessors, (1194), 125 states have call successors, (125), 41 states have call predecessors, (125), 51 states have return successors, (146), 111 states have call predecessors, (146), 119 states have call successors, (146) [2022-11-02 21:12:42,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1465 transitions. [2022-11-02 21:12:42,449 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1465 transitions. Word has length 43 [2022-11-02 21:12:42,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:42,450 INFO L495 AbstractCegarLoop]: Abstraction has 1033 states and 1465 transitions. [2022-11-02 21:12:42,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:42,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1465 transitions. [2022-11-02 21:12:42,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-02 21:12:42,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:42,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:42,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:42,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:42,666 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:42,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:42,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1007838826, now seen corresponding path program 1 times [2022-11-02 21:12:42,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:42,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1374229300] [2022-11-02 21:12:42,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:42,667 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:42,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:42,668 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:42,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-02 21:12:42,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:42,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:12:42,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:42,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:42,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:42,974 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:42,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1374229300] [2022-11-02 21:12:42,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1374229300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:42,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:42,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:12:42,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552186339] [2022-11-02 21:12:42,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:42,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:12:42,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:42,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:12:42,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:12:42,975 INFO L87 Difference]: Start difference. First operand 1033 states and 1465 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:43,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:43,265 INFO L93 Difference]: Finished difference Result 1072 states and 1504 transitions. [2022-11-02 21:12:43,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:12:43,268 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2022-11-02 21:12:43,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:43,272 INFO L225 Difference]: With dead ends: 1072 [2022-11-02 21:12:43,272 INFO L226 Difference]: Without dead ends: 1060 [2022-11-02 21:12:43,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:12:43,273 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 21 mSDsluCounter, 4333 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4969 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:43,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 4969 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:12:43,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2022-11-02 21:12:43,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1033. [2022-11-02 21:12:43,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 856 states have (on average 1.394859813084112) internal successors, (1194), 880 states have internal predecessors, (1194), 125 states have call successors, (125), 41 states have call predecessors, (125), 51 states have return successors, (145), 111 states have call predecessors, (145), 119 states have call successors, (145) [2022-11-02 21:12:43,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1464 transitions. [2022-11-02 21:12:43,298 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1464 transitions. Word has length 44 [2022-11-02 21:12:43,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:43,298 INFO L495 AbstractCegarLoop]: Abstraction has 1033 states and 1464 transitions. [2022-11-02 21:12:43,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:43,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1464 transitions. [2022-11-02 21:12:43,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-02 21:12:43,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:43,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:43,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2022-11-02 21:12:43,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:43,515 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:43,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:43,516 INFO L85 PathProgramCache]: Analyzing trace with hash 590562129, now seen corresponding path program 1 times [2022-11-02 21:12:43,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:43,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973205469] [2022-11-02 21:12:43,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:43,516 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:43,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:43,517 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:43,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-02 21:12:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:43,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:12:43,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:43,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:43,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:43,806 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:43,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973205469] [2022-11-02 21:12:43,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1973205469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:43,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:43,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:12:43,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209354289] [2022-11-02 21:12:43,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:43,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:12:43,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:43,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:12:43,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:12:43,808 INFO L87 Difference]: Start difference. First operand 1033 states and 1464 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:44,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:44,152 INFO L93 Difference]: Finished difference Result 1064 states and 1496 transitions. [2022-11-02 21:12:44,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:12:44,153 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2022-11-02 21:12:44,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:44,157 INFO L225 Difference]: With dead ends: 1064 [2022-11-02 21:12:44,157 INFO L226 Difference]: Without dead ends: 1047 [2022-11-02 21:12:44,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:12:44,158 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 80 mSDsluCounter, 4959 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 5593 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:44,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 5593 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:12:44,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2022-11-02 21:12:44,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1031. [2022-11-02 21:12:44,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 855 states have (on average 1.3929824561403508) internal successors, (1191), 879 states have internal predecessors, (1191), 124 states have call successors, (124), 41 states have call predecessors, (124), 51 states have return successors, (144), 110 states have call predecessors, (144), 118 states have call successors, (144) [2022-11-02 21:12:44,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1459 transitions. [2022-11-02 21:12:44,184 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1459 transitions. Word has length 47 [2022-11-02 21:12:44,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:44,185 INFO L495 AbstractCegarLoop]: Abstraction has 1031 states and 1459 transitions. [2022-11-02 21:12:44,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:44,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1459 transitions. [2022-11-02 21:12:44,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-02 21:12:44,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:44,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:44,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:44,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:44,400 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:44,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:44,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1771938136, now seen corresponding path program 1 times [2022-11-02 21:12:44,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:44,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [621161544] [2022-11-02 21:12:44,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:44,401 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:44,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:44,402 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:44,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-02 21:12:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:44,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:12:44,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:44,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:44,691 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:44,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:44,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [621161544] [2022-11-02 21:12:44,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [621161544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:44,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:44,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:12:44,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348235860] [2022-11-02 21:12:44,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:44,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:12:44,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:44,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:12:44,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:12:44,694 INFO L87 Difference]: Start difference. First operand 1031 states and 1459 transitions. Second operand has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:45,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:45,037 INFO L93 Difference]: Finished difference Result 1048 states and 1477 transitions. [2022-11-02 21:12:45,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:12:45,038 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-11-02 21:12:45,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:45,043 INFO L225 Difference]: With dead ends: 1048 [2022-11-02 21:12:45,043 INFO L226 Difference]: Without dead ends: 1031 [2022-11-02 21:12:45,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:12:45,044 INFO L413 NwaCegarLoop]: 614 mSDtfsCounter, 62 mSDsluCounter, 4841 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 5455 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:45,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 5455 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:12:45,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-11-02 21:12:45,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1031. [2022-11-02 21:12:45,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 855 states have (on average 1.3859649122807018) internal successors, (1185), 879 states have internal predecessors, (1185), 124 states have call successors, (124), 41 states have call predecessors, (124), 51 states have return successors, (144), 110 states have call predecessors, (144), 118 states have call successors, (144) [2022-11-02 21:12:45,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1453 transitions. [2022-11-02 21:12:45,069 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1453 transitions. Word has length 44 [2022-11-02 21:12:45,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:45,069 INFO L495 AbstractCegarLoop]: Abstraction has 1031 states and 1453 transitions. [2022-11-02 21:12:45,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:45,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1453 transitions. [2022-11-02 21:12:45,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-02 21:12:45,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:45,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:45,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:45,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:45,286 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:45,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:45,286 INFO L85 PathProgramCache]: Analyzing trace with hash 877591917, now seen corresponding path program 1 times [2022-11-02 21:12:45,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:45,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293715860] [2022-11-02 21:12:45,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:45,287 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:45,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:45,289 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:45,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-02 21:12:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:45,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:12:45,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:45,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:45,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:45,631 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:45,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [293715860] [2022-11-02 21:12:45,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [293715860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:45,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:45,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 21:12:45,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819883815] [2022-11-02 21:12:45,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:45,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:12:45,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:45,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:12:45,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:12:45,632 INFO L87 Difference]: Start difference. First operand 1031 states and 1453 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:45,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:45,926 INFO L93 Difference]: Finished difference Result 1071 states and 1493 transitions. [2022-11-02 21:12:45,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:12:45,927 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2022-11-02 21:12:45,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:45,931 INFO L225 Difference]: With dead ends: 1071 [2022-11-02 21:12:45,931 INFO L226 Difference]: Without dead ends: 1058 [2022-11-02 21:12:45,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:12:45,932 INFO L413 NwaCegarLoop]: 633 mSDtfsCounter, 29 mSDsluCounter, 5522 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 6155 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:45,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 6155 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:12:45,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2022-11-02 21:12:45,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1031. [2022-11-02 21:12:45,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 855 states have (on average 1.3859649122807018) internal successors, (1185), 879 states have internal predecessors, (1185), 124 states have call successors, (124), 41 states have call predecessors, (124), 51 states have return successors, (143), 110 states have call predecessors, (143), 118 states have call successors, (143) [2022-11-02 21:12:45,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1452 transitions. [2022-11-02 21:12:45,970 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1452 transitions. Word has length 46 [2022-11-02 21:12:45,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:45,970 INFO L495 AbstractCegarLoop]: Abstraction has 1031 states and 1452 transitions. [2022-11-02 21:12:45,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:45,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1452 transitions. [2022-11-02 21:12:45,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-02 21:12:45,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:45,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:45,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:46,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:46,194 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:46,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:46,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1691543900, now seen corresponding path program 1 times [2022-11-02 21:12:46,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:46,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692301672] [2022-11-02 21:12:46,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:46,195 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:46,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:46,196 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:46,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-02 21:12:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:46,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 21:12:46,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:46,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:46,344 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:46,344 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:46,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692301672] [2022-11-02 21:12:46,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1692301672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:46,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:46,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:12:46,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748530652] [2022-11-02 21:12:46,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:46,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:12:46,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:46,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:12:46,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:12:46,346 INFO L87 Difference]: Start difference. First operand 1031 states and 1452 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:46,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:46,458 INFO L93 Difference]: Finished difference Result 1052 states and 1475 transitions. [2022-11-02 21:12:46,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:12:46,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-11-02 21:12:46,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:46,463 INFO L225 Difference]: With dead ends: 1052 [2022-11-02 21:12:46,463 INFO L226 Difference]: Without dead ends: 1052 [2022-11-02 21:12:46,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:12:46,464 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 39 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1798 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:46,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1798 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:12:46,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2022-11-02 21:12:46,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1033. [2022-11-02 21:12:46,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 857 states have (on average 1.3850641773628938) internal successors, (1187), 881 states have internal predecessors, (1187), 124 states have call successors, (124), 41 states have call predecessors, (124), 51 states have return successors, (143), 110 states have call predecessors, (143), 118 states have call successors, (143) [2022-11-02 21:12:46,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1454 transitions. [2022-11-02 21:12:46,491 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1454 transitions. Word has length 44 [2022-11-02 21:12:46,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:46,491 INFO L495 AbstractCegarLoop]: Abstraction has 1033 states and 1454 transitions. [2022-11-02 21:12:46,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:46,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1454 transitions. [2022-11-02 21:12:46,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-02 21:12:46,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:46,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:46,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:46,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:46,707 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:46,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:46,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1825557406, now seen corresponding path program 1 times [2022-11-02 21:12:46,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:46,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1340806824] [2022-11-02 21:12:46,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:46,708 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:46,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:46,709 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:46,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-02 21:12:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:46,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:12:46,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:46,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:46,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:46,955 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:46,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1340806824] [2022-11-02 21:12:46,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1340806824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:46,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:46,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:46,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026637679] [2022-11-02 21:12:46,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:46,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:46,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:46,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:46,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:46,958 INFO L87 Difference]: Start difference. First operand 1033 states and 1454 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:47,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:47,156 INFO L93 Difference]: Finished difference Result 1051 states and 1473 transitions. [2022-11-02 21:12:47,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:12:47,157 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-11-02 21:12:47,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:47,161 INFO L225 Difference]: With dead ends: 1051 [2022-11-02 21:12:47,162 INFO L226 Difference]: Without dead ends: 1031 [2022-11-02 21:12:47,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:12:47,163 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 60 mSDsluCounter, 3008 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3626 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:47,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3626 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:12:47,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-11-02 21:12:47,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1031. [2022-11-02 21:12:47,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 855 states have (on average 1.3812865497076023) internal successors, (1181), 879 states have internal predecessors, (1181), 124 states have call successors, (124), 41 states have call predecessors, (124), 51 states have return successors, (143), 110 states have call predecessors, (143), 118 states have call successors, (143) [2022-11-02 21:12:47,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1448 transitions. [2022-11-02 21:12:47,188 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1448 transitions. Word has length 44 [2022-11-02 21:12:47,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:47,188 INFO L495 AbstractCegarLoop]: Abstraction has 1031 states and 1448 transitions. [2022-11-02 21:12:47,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:47,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1448 transitions. [2022-11-02 21:12:47,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-02 21:12:47,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:47,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:47,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (32)] Ended with exit code 0 [2022-11-02 21:12:47,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:47,414 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:47,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:47,414 INFO L85 PathProgramCache]: Analyzing trace with hash 345167796, now seen corresponding path program 1 times [2022-11-02 21:12:47,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:47,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551123942] [2022-11-02 21:12:47,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:47,415 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:47,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:47,416 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:47,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-02 21:12:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:47,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 21:12:47,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:47,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:47,581 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:47,582 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:47,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551123942] [2022-11-02 21:12:47,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551123942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:47,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:47,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:12:47,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550874512] [2022-11-02 21:12:47,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:47,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:12:47,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:47,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:12:47,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:47,584 INFO L87 Difference]: Start difference. First operand 1031 states and 1448 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:47,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:47,594 INFO L93 Difference]: Finished difference Result 1047 states and 1464 transitions. [2022-11-02 21:12:47,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:12:47,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-11-02 21:12:47,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:47,600 INFO L225 Difference]: With dead ends: 1047 [2022-11-02 21:12:47,600 INFO L226 Difference]: Without dead ends: 1047 [2022-11-02 21:12:47,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:47,601 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 19 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:47,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1235 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:12:47,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2022-11-02 21:12:47,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1031. [2022-11-02 21:12:47,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 855 states have (on average 1.3801169590643274) internal successors, (1180), 879 states have internal predecessors, (1180), 124 states have call successors, (124), 41 states have call predecessors, (124), 51 states have return successors, (143), 110 states have call predecessors, (143), 118 states have call successors, (143) [2022-11-02 21:12:47,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1447 transitions. [2022-11-02 21:12:47,624 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1447 transitions. Word has length 44 [2022-11-02 21:12:47,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:47,624 INFO L495 AbstractCegarLoop]: Abstraction has 1031 states and 1447 transitions. [2022-11-02 21:12:47,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:47,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1447 transitions. [2022-11-02 21:12:47,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-02 21:12:47,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:47,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:47,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (33)] Ended with exit code 0 [2022-11-02 21:12:47,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:47,839 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:47,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:47,840 INFO L85 PathProgramCache]: Analyzing trace with hash 211154290, now seen corresponding path program 1 times [2022-11-02 21:12:47,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:47,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123805951] [2022-11-02 21:12:47,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:47,841 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:47,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:47,842 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:47,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-02 21:12:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:47,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:12:48,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:48,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:48,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:48,074 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:48,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123805951] [2022-11-02 21:12:48,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123805951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:48,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:48,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:48,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814091222] [2022-11-02 21:12:48,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:48,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:48,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:48,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:48,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:48,076 INFO L87 Difference]: Start difference. First operand 1031 states and 1447 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:48,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:48,268 INFO L93 Difference]: Finished difference Result 1046 states and 1462 transitions. [2022-11-02 21:12:48,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:12:48,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-11-02 21:12:48,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:48,273 INFO L225 Difference]: With dead ends: 1046 [2022-11-02 21:12:48,273 INFO L226 Difference]: Without dead ends: 1019 [2022-11-02 21:12:48,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:12:48,274 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 68 mSDsluCounter, 2973 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 3584 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:48,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 3584 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:12:48,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2022-11-02 21:12:48,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1019. [2022-11-02 21:12:48,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 846 states have (on average 1.3747044917257683) internal successors, (1163), 870 states have internal predecessors, (1163), 121 states have call successors, (121), 41 states have call predecessors, (121), 51 states have return successors, (140), 107 states have call predecessors, (140), 115 states have call successors, (140) [2022-11-02 21:12:48,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1424 transitions. [2022-11-02 21:12:48,295 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1424 transitions. Word has length 44 [2022-11-02 21:12:48,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:48,295 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1424 transitions. [2022-11-02 21:12:48,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:48,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1424 transitions. [2022-11-02 21:12:48,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-02 21:12:48,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:48,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:48,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:48,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:48,510 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:48,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:48,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1307777067, now seen corresponding path program 1 times [2022-11-02 21:12:48,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:48,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [599796226] [2022-11-02 21:12:48,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:48,511 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:48,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:48,512 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:48,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-02 21:12:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:48,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 21:12:48,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:48,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:48,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:48,678 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:48,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [599796226] [2022-11-02 21:12:48,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [599796226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:48,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:48,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:12:48,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888535376] [2022-11-02 21:12:48,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:48,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:12:48,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:48,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:12:48,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:12:48,680 INFO L87 Difference]: Start difference. First operand 1019 states and 1424 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:48,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:48,878 INFO L93 Difference]: Finished difference Result 1061 states and 1498 transitions. [2022-11-02 21:12:48,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:12:48,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-11-02 21:12:48,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:48,883 INFO L225 Difference]: With dead ends: 1061 [2022-11-02 21:12:48,883 INFO L226 Difference]: Without dead ends: 1061 [2022-11-02 21:12:48,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:12:48,884 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 21 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:48,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1702 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:12:48,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2022-11-02 21:12:48,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1033. [2022-11-02 21:12:48,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 856 states have (on average 1.375) internal successors, (1177), 882 states have internal predecessors, (1177), 123 states have call successors, (123), 41 states have call predecessors, (123), 53 states have return successors, (154), 109 states have call predecessors, (154), 117 states have call successors, (154) [2022-11-02 21:12:48,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1454 transitions. [2022-11-02 21:12:48,928 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1454 transitions. Word has length 45 [2022-11-02 21:12:48,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:48,928 INFO L495 AbstractCegarLoop]: Abstraction has 1033 states and 1454 transitions. [2022-11-02 21:12:48,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:48,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1454 transitions. [2022-11-02 21:12:48,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-02 21:12:48,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:48,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:48,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (35)] Ended with exit code 0 [2022-11-02 21:12:49,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:49,144 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:49,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:49,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1817250157, now seen corresponding path program 1 times [2022-11-02 21:12:49,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:49,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431763725] [2022-11-02 21:12:49,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:49,145 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:49,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:49,146 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:49,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-02 21:12:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:49,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:12:49,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:49,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:49,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:49,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:49,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431763725] [2022-11-02 21:12:49,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431763725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:49,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:49,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:12:49,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433751674] [2022-11-02 21:12:49,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:49,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:12:49,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:49,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:12:49,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:12:49,403 INFO L87 Difference]: Start difference. First operand 1033 states and 1454 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:49,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:49,613 INFO L93 Difference]: Finished difference Result 1068 states and 1530 transitions. [2022-11-02 21:12:49,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:12:49,614 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-11-02 21:12:49,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:49,619 INFO L225 Difference]: With dead ends: 1068 [2022-11-02 21:12:49,619 INFO L226 Difference]: Without dead ends: 1049 [2022-11-02 21:12:49,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:12:49,619 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 60 mSDsluCounter, 4163 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 4772 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:49,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 4772 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:12:49,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2022-11-02 21:12:49,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1041. [2022-11-02 21:12:49,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 860 states have (on average 1.3732558139534883) internal successors, (1181), 890 states have internal predecessors, (1181), 123 states have call successors, (123), 41 states have call predecessors, (123), 57 states have return successors, (186), 109 states have call predecessors, (186), 117 states have call successors, (186) [2022-11-02 21:12:49,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1490 transitions. [2022-11-02 21:12:49,645 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1490 transitions. Word has length 45 [2022-11-02 21:12:49,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:49,646 INFO L495 AbstractCegarLoop]: Abstraction has 1041 states and 1490 transitions. [2022-11-02 21:12:49,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:49,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1490 transitions. [2022-11-02 21:12:49,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-02 21:12:49,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:49,650 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:49,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:49,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:49,862 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:49,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:49,862 INFO L85 PathProgramCache]: Analyzing trace with hash -201116362, now seen corresponding path program 1 times [2022-11-02 21:12:49,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:49,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1553104664] [2022-11-02 21:12:49,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:49,863 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:49,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:49,864 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:49,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-02 21:12:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:50,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:12:50,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:50,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:50,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:50,233 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:50,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1553104664] [2022-11-02 21:12:50,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1553104664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:50,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:50,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:12:50,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965638008] [2022-11-02 21:12:50,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:50,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:12:50,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:50,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:12:50,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:12:50,235 INFO L87 Difference]: Start difference. First operand 1041 states and 1490 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:50,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:50,559 INFO L93 Difference]: Finished difference Result 1082 states and 1531 transitions. [2022-11-02 21:12:50,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:12:50,559 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2022-11-02 21:12:50,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:50,563 INFO L225 Difference]: With dead ends: 1082 [2022-11-02 21:12:50,563 INFO L226 Difference]: Without dead ends: 1068 [2022-11-02 21:12:50,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:12:50,569 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 46 mSDsluCounter, 5275 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 5880 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:50,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 5880 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:12:50,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-11-02 21:12:50,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1041. [2022-11-02 21:12:50,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 860 states have (on average 1.3732558139534883) internal successors, (1181), 890 states have internal predecessors, (1181), 123 states have call successors, (123), 41 states have call predecessors, (123), 57 states have return successors, (185), 109 states have call predecessors, (185), 117 states have call successors, (185) [2022-11-02 21:12:50,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1489 transitions. [2022-11-02 21:12:50,597 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1489 transitions. Word has length 47 [2022-11-02 21:12:50,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:50,598 INFO L495 AbstractCegarLoop]: Abstraction has 1041 states and 1489 transitions. [2022-11-02 21:12:50,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:50,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1489 transitions. [2022-11-02 21:12:50,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-02 21:12:50,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:50,601 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:50,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:50,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:50,814 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:50,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:50,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1741355878, now seen corresponding path program 1 times [2022-11-02 21:12:50,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:50,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751696967] [2022-11-02 21:12:50,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:50,815 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:50,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:50,816 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:50,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-11-02 21:12:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:50,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:12:50,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:51,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:51,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:51,171 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:51,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751696967] [2022-11-02 21:12:51,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751696967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:51,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:51,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:12:51,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6662844] [2022-11-02 21:12:51,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:51,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:12:51,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:51,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:12:51,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:12:51,172 INFO L87 Difference]: Start difference. First operand 1041 states and 1489 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:51,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:51,516 INFO L93 Difference]: Finished difference Result 1082 states and 1530 transitions. [2022-11-02 21:12:51,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:12:51,517 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2022-11-02 21:12:51,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:51,521 INFO L225 Difference]: With dead ends: 1082 [2022-11-02 21:12:51,521 INFO L226 Difference]: Without dead ends: 1068 [2022-11-02 21:12:51,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:12:51,522 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 46 mSDsluCounter, 5317 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 5926 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:51,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 5926 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:12:51,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-11-02 21:12:51,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1041. [2022-11-02 21:12:51,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 860 states have (on average 1.3732558139534883) internal successors, (1181), 890 states have internal predecessors, (1181), 123 states have call successors, (123), 41 states have call predecessors, (123), 57 states have return successors, (184), 109 states have call predecessors, (184), 117 states have call successors, (184) [2022-11-02 21:12:51,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1488 transitions. [2022-11-02 21:12:51,544 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1488 transitions. Word has length 48 [2022-11-02 21:12:51,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:51,545 INFO L495 AbstractCegarLoop]: Abstraction has 1041 states and 1488 transitions. [2022-11-02 21:12:51,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:51,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1488 transitions. [2022-11-02 21:12:51,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-02 21:12:51,548 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:51,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:51,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:51,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:51,761 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:51,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:51,762 INFO L85 PathProgramCache]: Analyzing trace with hash -495181895, now seen corresponding path program 1 times [2022-11-02 21:12:51,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:51,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771735518] [2022-11-02 21:12:51,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:51,762 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:51,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:51,763 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:51,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-11-02 21:12:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:51,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:12:51,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:52,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:52,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:52,134 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:52,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [771735518] [2022-11-02 21:12:52,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [771735518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:52,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:52,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:12:52,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488306863] [2022-11-02 21:12:52,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:52,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:12:52,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:52,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:12:52,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:12:52,136 INFO L87 Difference]: Start difference. First operand 1041 states and 1488 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:52,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:52,449 INFO L93 Difference]: Finished difference Result 1082 states and 1529 transitions. [2022-11-02 21:12:52,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:12:52,450 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2022-11-02 21:12:52,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:52,454 INFO L225 Difference]: With dead ends: 1082 [2022-11-02 21:12:52,454 INFO L226 Difference]: Without dead ends: 1068 [2022-11-02 21:12:52,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:12:52,455 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 42 mSDsluCounter, 5862 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 6466 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:52,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 6466 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:12:52,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-11-02 21:12:52,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1041. [2022-11-02 21:12:52,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 860 states have (on average 1.3732558139534883) internal successors, (1181), 890 states have internal predecessors, (1181), 123 states have call successors, (123), 41 states have call predecessors, (123), 57 states have return successors, (183), 109 states have call predecessors, (183), 117 states have call successors, (183) [2022-11-02 21:12:52,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1487 transitions. [2022-11-02 21:12:52,489 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1487 transitions. Word has length 54 [2022-11-02 21:12:52,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:52,490 INFO L495 AbstractCegarLoop]: Abstraction has 1041 states and 1487 transitions. [2022-11-02 21:12:52,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:52,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1487 transitions. [2022-11-02 21:12:52,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-02 21:12:52,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:52,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:52,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:52,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:52,706 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:52,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:52,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1309709834, now seen corresponding path program 1 times [2022-11-02 21:12:52,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:52,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754806566] [2022-11-02 21:12:52,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:52,707 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:52,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:52,708 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:52,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-11-02 21:12:52,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:52,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:12:52,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:53,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:53,032 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:53,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:53,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754806566] [2022-11-02 21:12:53,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [754806566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:53,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:53,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:12:53,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223283577] [2022-11-02 21:12:53,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:53,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:12:53,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:53,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:12:53,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:12:53,035 INFO L87 Difference]: Start difference. First operand 1041 states and 1487 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:53,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:53,333 INFO L93 Difference]: Finished difference Result 1110 states and 1567 transitions. [2022-11-02 21:12:53,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:12:53,334 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2022-11-02 21:12:53,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:53,338 INFO L225 Difference]: With dead ends: 1110 [2022-11-02 21:12:53,338 INFO L226 Difference]: Without dead ends: 1098 [2022-11-02 21:12:53,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:12:53,339 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 17 mSDsluCounter, 4765 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5383 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:53,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5383 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:12:53,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2022-11-02 21:12:53,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1062. [2022-11-02 21:12:53,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 879 states have (on average 1.3697383390216156) internal successors, (1204), 910 states have internal predecessors, (1204), 123 states have call successors, (123), 41 states have call predecessors, (123), 59 states have return successors, (191), 110 states have call predecessors, (191), 117 states have call successors, (191) [2022-11-02 21:12:53,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1518 transitions. [2022-11-02 21:12:53,367 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1518 transitions. Word has length 46 [2022-11-02 21:12:53,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:53,367 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1518 transitions. [2022-11-02 21:12:53,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:53,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1518 transitions. [2022-11-02 21:12:53,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-02 21:12:53,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:53,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:53,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:53,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:53,584 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:53,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:53,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1991597085, now seen corresponding path program 1 times [2022-11-02 21:12:53,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:53,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572696479] [2022-11-02 21:12:53,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:53,585 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:53,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:53,586 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:53,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-02 21:12:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:53,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:12:53,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:53,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:53,894 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:53,894 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:53,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572696479] [2022-11-02 21:12:53,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1572696479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:53,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:53,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:12:53,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901590304] [2022-11-02 21:12:53,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:53,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:12:53,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:53,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:12:53,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:12:53,896 INFO L87 Difference]: Start difference. First operand 1062 states and 1518 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:54,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:54,156 INFO L93 Difference]: Finished difference Result 1110 states and 1566 transitions. [2022-11-02 21:12:54,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:12:54,157 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2022-11-02 21:12:54,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:54,160 INFO L225 Difference]: With dead ends: 1110 [2022-11-02 21:12:54,160 INFO L226 Difference]: Without dead ends: 1098 [2022-11-02 21:12:54,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:12:54,161 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 21 mSDsluCounter, 4140 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4752 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:54,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 4752 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:12:54,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2022-11-02 21:12:54,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1062. [2022-11-02 21:12:54,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 879 states have (on average 1.3697383390216156) internal successors, (1204), 910 states have internal predecessors, (1204), 123 states have call successors, (123), 41 states have call predecessors, (123), 59 states have return successors, (190), 110 states have call predecessors, (190), 117 states have call successors, (190) [2022-11-02 21:12:54,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1517 transitions. [2022-11-02 21:12:54,200 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1517 transitions. Word has length 45 [2022-11-02 21:12:54,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:54,201 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1517 transitions. [2022-11-02 21:12:54,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:54,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1517 transitions. [2022-11-02 21:12:54,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-02 21:12:54,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:54,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:54,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:54,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:54,417 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:54,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:54,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1530884490, now seen corresponding path program 1 times [2022-11-02 21:12:54,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:54,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885088476] [2022-11-02 21:12:54,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:54,419 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:54,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:54,419 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:54,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-11-02 21:12:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:54,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 21:12:54,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:54,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:54,560 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:54,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:54,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885088476] [2022-11-02 21:12:54,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885088476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:54,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:54,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:12:54,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721214602] [2022-11-02 21:12:54,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:54,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:12:54,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:54,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:12:54,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:54,565 INFO L87 Difference]: Start difference. First operand 1062 states and 1517 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:54,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:54,577 INFO L93 Difference]: Finished difference Result 1078 states and 1533 transitions. [2022-11-02 21:12:54,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:12:54,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-11-02 21:12:54,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:54,580 INFO L225 Difference]: With dead ends: 1078 [2022-11-02 21:12:54,581 INFO L226 Difference]: Without dead ends: 1078 [2022-11-02 21:12:54,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:54,581 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 19 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:54,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1211 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:12:54,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2022-11-02 21:12:54,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1062. [2022-11-02 21:12:54,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 879 states have (on average 1.3686006825938566) internal successors, (1203), 910 states have internal predecessors, (1203), 123 states have call successors, (123), 41 states have call predecessors, (123), 59 states have return successors, (190), 110 states have call predecessors, (190), 117 states have call successors, (190) [2022-11-02 21:12:54,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1516 transitions. [2022-11-02 21:12:54,606 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1516 transitions. Word has length 45 [2022-11-02 21:12:54,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:54,607 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1516 transitions. [2022-11-02 21:12:54,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:54,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1516 transitions. [2022-11-02 21:12:54,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-02 21:12:54,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:54,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:54,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:54,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:54,823 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:54,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:54,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1664897996, now seen corresponding path program 1 times [2022-11-02 21:12:54,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:54,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73557424] [2022-11-02 21:12:54,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:54,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:54,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:54,824 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:54,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-11-02 21:12:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:54,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:12:54,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:55,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:55,013 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:55,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:55,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73557424] [2022-11-02 21:12:55,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [73557424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:55,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:55,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:55,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188441269] [2022-11-02 21:12:55,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:55,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:55,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:55,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:55,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:55,014 INFO L87 Difference]: Start difference. First operand 1062 states and 1516 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:55,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:55,180 INFO L93 Difference]: Finished difference Result 1086 states and 1545 transitions. [2022-11-02 21:12:55,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:12:55,180 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-11-02 21:12:55,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:55,183 INFO L225 Difference]: With dead ends: 1086 [2022-11-02 21:12:55,183 INFO L226 Difference]: Without dead ends: 1054 [2022-11-02 21:12:55,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:12:55,184 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 76 mSDsluCounter, 2910 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 3521 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:55,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 3521 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:12:55,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2022-11-02 21:12:55,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1054. [2022-11-02 21:12:55,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 873 states have (on average 1.3642611683848798) internal successors, (1191), 904 states have internal predecessors, (1191), 121 states have call successors, (121), 41 states have call predecessors, (121), 59 states have return successors, (188), 108 states have call predecessors, (188), 115 states have call successors, (188) [2022-11-02 21:12:55,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1500 transitions. [2022-11-02 21:12:55,208 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1500 transitions. Word has length 45 [2022-11-02 21:12:55,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:55,208 INFO L495 AbstractCegarLoop]: Abstraction has 1054 states and 1500 transitions. [2022-11-02 21:12:55,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:55,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1500 transitions. [2022-11-02 21:12:55,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-02 21:12:55,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:55,212 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:55,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (43)] Ended with exit code 0 [2022-11-02 21:12:55,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:55,424 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:55,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:55,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1130031656, now seen corresponding path program 1 times [2022-11-02 21:12:55,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:55,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686788435] [2022-11-02 21:12:55,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:55,425 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:55,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:55,426 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:55,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-11-02 21:12:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:55,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 21:12:55,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:55,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:55,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:55,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:55,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686788435] [2022-11-02 21:12:55,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686788435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:55,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:55,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:12:55,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821726098] [2022-11-02 21:12:55,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:55,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:12:55,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:55,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:12:55,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:55,566 INFO L87 Difference]: Start difference. First operand 1054 states and 1500 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:55,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:55,578 INFO L93 Difference]: Finished difference Result 1070 states and 1516 transitions. [2022-11-02 21:12:55,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:12:55,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-11-02 21:12:55,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:55,583 INFO L225 Difference]: With dead ends: 1070 [2022-11-02 21:12:55,583 INFO L226 Difference]: Without dead ends: 1070 [2022-11-02 21:12:55,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:12:55,591 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 19 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:55,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1178 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:12:55,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2022-11-02 21:12:55,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1054. [2022-11-02 21:12:55,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 873 states have (on average 1.3631156930126003) internal successors, (1190), 904 states have internal predecessors, (1190), 121 states have call successors, (121), 41 states have call predecessors, (121), 59 states have return successors, (188), 108 states have call predecessors, (188), 115 states have call successors, (188) [2022-11-02 21:12:55,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1499 transitions. [2022-11-02 21:12:55,631 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1499 transitions. Word has length 45 [2022-11-02 21:12:55,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:55,634 INFO L495 AbstractCegarLoop]: Abstraction has 1054 states and 1499 transitions. [2022-11-02 21:12:55,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:55,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1499 transitions. [2022-11-02 21:12:55,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-02 21:12:55,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:55,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:55,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:55,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:55,850 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:55,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:55,851 INFO L85 PathProgramCache]: Analyzing trace with hash 996018150, now seen corresponding path program 1 times [2022-11-02 21:12:55,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:55,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069348879] [2022-11-02 21:12:55,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:55,851 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:55,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:55,852 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:55,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2022-11-02 21:12:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:55,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:12:55,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:56,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:56,036 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:56,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:56,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069348879] [2022-11-02 21:12:56,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069348879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:56,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:56,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:12:56,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660969605] [2022-11-02 21:12:56,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:56,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:12:56,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:56,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:12:56,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:56,038 INFO L87 Difference]: Start difference. First operand 1054 states and 1499 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:56,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:56,209 INFO L93 Difference]: Finished difference Result 1069 states and 1514 transitions. [2022-11-02 21:12:56,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:12:56,209 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-11-02 21:12:56,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:56,213 INFO L225 Difference]: With dead ends: 1069 [2022-11-02 21:12:56,213 INFO L226 Difference]: Without dead ends: 1046 [2022-11-02 21:12:56,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:12:56,213 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 64 mSDsluCounter, 2823 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 3414 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:56,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 3414 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:12:56,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2022-11-02 21:12:56,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1046. [2022-11-02 21:12:56,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 867 states have (on average 1.3598615916955017) internal successors, (1179), 898 states have internal predecessors, (1179), 119 states have call successors, (119), 41 states have call predecessors, (119), 59 states have return successors, (186), 106 states have call predecessors, (186), 113 states have call successors, (186) [2022-11-02 21:12:56,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1484 transitions. [2022-11-02 21:12:56,244 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1484 transitions. Word has length 45 [2022-11-02 21:12:56,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:56,244 INFO L495 AbstractCegarLoop]: Abstraction has 1046 states and 1484 transitions. [2022-11-02 21:12:56,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:12:56,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1484 transitions. [2022-11-02 21:12:56,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-02 21:12:56,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:56,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:56,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:56,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:56,463 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:56,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:56,463 INFO L85 PathProgramCache]: Analyzing trace with hash -688570704, now seen corresponding path program 1 times [2022-11-02 21:12:56,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:56,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217238250] [2022-11-02 21:12:56,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:56,464 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:56,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:56,465 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:56,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-11-02 21:12:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:56,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:12:56,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:56,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:56,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:56,648 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:56,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217238250] [2022-11-02 21:12:56,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217238250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:56,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:56,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:12:56,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794470815] [2022-11-02 21:12:56,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:56,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:12:56,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:56,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:12:56,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:12:56,651 INFO L87 Difference]: Start difference. First operand 1046 states and 1484 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 21:12:56,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:56,697 INFO L93 Difference]: Finished difference Result 1038 states and 1468 transitions. [2022-11-02 21:12:56,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:12:56,697 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2022-11-02 21:12:56,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:56,701 INFO L225 Difference]: With dead ends: 1038 [2022-11-02 21:12:56,701 INFO L226 Difference]: Without dead ends: 1038 [2022-11-02 21:12:56,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:12:56,702 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 34 mSDsluCounter, 2346 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:56,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 2948 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:12:56,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2022-11-02 21:12:56,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1032. [2022-11-02 21:12:56,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 853 states have (on average 1.3563892145369285) internal successors, (1157), 884 states have internal predecessors, (1157), 119 states have call successors, (119), 41 states have call predecessors, (119), 59 states have return successors, (186), 106 states have call predecessors, (186), 113 states have call successors, (186) [2022-11-02 21:12:56,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1462 transitions. [2022-11-02 21:12:56,727 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1462 transitions. Word has length 49 [2022-11-02 21:12:56,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:56,728 INFO L495 AbstractCegarLoop]: Abstraction has 1032 states and 1462 transitions. [2022-11-02 21:12:56,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 21:12:56,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1462 transitions. [2022-11-02 21:12:56,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-02 21:12:56,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:56,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:56,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:56,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:56,936 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:56,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:56,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1799473543, now seen corresponding path program 1 times [2022-11-02 21:12:56,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:56,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732295810] [2022-11-02 21:12:56,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:56,936 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:56,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:56,937 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:56,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-11-02 21:12:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:57,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:12:57,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:57,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:57,232 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:57,233 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:57,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732295810] [2022-11-02 21:12:57,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732295810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:57,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:57,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:12:57,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868103740] [2022-11-02 21:12:57,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:57,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:12:57,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:57,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:12:57,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:12:57,235 INFO L87 Difference]: Start difference. First operand 1032 states and 1462 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:57,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:57,506 INFO L93 Difference]: Finished difference Result 1077 states and 1503 transitions. [2022-11-02 21:12:57,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:12:57,506 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2022-11-02 21:12:57,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:57,509 INFO L225 Difference]: With dead ends: 1077 [2022-11-02 21:12:57,509 INFO L226 Difference]: Without dead ends: 1064 [2022-11-02 21:12:57,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:12:57,510 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 17 mSDsluCounter, 4492 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5077 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:57,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5077 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:12:57,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2022-11-02 21:12:57,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1018. [2022-11-02 21:12:57,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 840 states have (on average 1.35) internal successors, (1134), 871 states have internal predecessors, (1134), 118 states have call successors, (118), 41 states have call predecessors, (118), 59 states have return successors, (185), 105 states have call predecessors, (185), 112 states have call successors, (185) [2022-11-02 21:12:57,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1437 transitions. [2022-11-02 21:12:57,535 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1437 transitions. Word has length 47 [2022-11-02 21:12:57,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:57,536 INFO L495 AbstractCegarLoop]: Abstraction has 1018 states and 1437 transitions. [2022-11-02 21:12:57,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:57,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1437 transitions. [2022-11-02 21:12:57,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-02 21:12:57,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:57,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:57,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:57,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:57,752 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:57,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:57,752 INFO L85 PathProgramCache]: Analyzing trace with hash -487130130, now seen corresponding path program 1 times [2022-11-02 21:12:57,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:57,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48810559] [2022-11-02 21:12:57,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:57,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:57,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:57,754 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:57,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2022-11-02 21:12:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:57,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:12:57,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:58,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:58,040 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:58,041 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:58,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48810559] [2022-11-02 21:12:58,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [48810559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:58,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:58,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:12:58,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939009500] [2022-11-02 21:12:58,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:58,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:12:58,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:58,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:12:58,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:12:58,043 INFO L87 Difference]: Start difference. First operand 1018 states and 1437 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:58,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:58,331 INFO L93 Difference]: Finished difference Result 1074 states and 1497 transitions. [2022-11-02 21:12:58,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:12:58,332 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2022-11-02 21:12:58,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:58,335 INFO L225 Difference]: With dead ends: 1074 [2022-11-02 21:12:58,335 INFO L226 Difference]: Without dead ends: 1061 [2022-11-02 21:12:58,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:12:58,335 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 17 mSDsluCounter, 4460 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5040 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:58,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5040 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:12:58,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2022-11-02 21:12:58,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1006. [2022-11-02 21:12:58,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 831 states have (on average 1.3513838748495788) internal successors, (1123), 861 states have internal predecessors, (1123), 117 states have call successors, (117), 41 states have call predecessors, (117), 57 states have return successors, (177), 103 states have call predecessors, (177), 111 states have call successors, (177) [2022-11-02 21:12:58,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1417 transitions. [2022-11-02 21:12:58,361 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1417 transitions. Word has length 46 [2022-11-02 21:12:58,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:58,361 INFO L495 AbstractCegarLoop]: Abstraction has 1006 states and 1417 transitions. [2022-11-02 21:12:58,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:12:58,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1417 transitions. [2022-11-02 21:12:58,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-02 21:12:58,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:58,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:58,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:58,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:58,578 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:58,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:58,579 INFO L85 PathProgramCache]: Analyzing trace with hash 484610396, now seen corresponding path program 1 times [2022-11-02 21:12:58,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:58,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [927303975] [2022-11-02 21:12:58,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:58,580 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:58,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:58,581 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:58,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-11-02 21:12:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:58,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:12:58,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:58,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:58,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:58,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:58,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [927303975] [2022-11-02 21:12:58,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [927303975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:58,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:58,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:12:58,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123305596] [2022-11-02 21:12:58,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:58,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:12:58,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:58,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:12:58,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:12:58,843 INFO L87 Difference]: Start difference. First operand 1006 states and 1417 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:59,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:59,151 INFO L93 Difference]: Finished difference Result 1021 states and 1432 transitions. [2022-11-02 21:12:59,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:12:59,152 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2022-11-02 21:12:59,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:59,155 INFO L225 Difference]: With dead ends: 1021 [2022-11-02 21:12:59,155 INFO L226 Difference]: Without dead ends: 1004 [2022-11-02 21:12:59,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:12:59,156 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 62 mSDsluCounter, 4331 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4881 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:59,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 4881 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:12:59,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2022-11-02 21:12:59,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 1004. [2022-11-02 21:12:59,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 830 states have (on average 1.3493975903614457) internal successors, (1120), 860 states have internal predecessors, (1120), 116 states have call successors, (116), 41 states have call predecessors, (116), 57 states have return successors, (176), 102 states have call predecessors, (176), 110 states have call successors, (176) [2022-11-02 21:12:59,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1412 transitions. [2022-11-02 21:12:59,181 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1412 transitions. Word has length 48 [2022-11-02 21:12:59,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:59,181 INFO L495 AbstractCegarLoop]: Abstraction has 1004 states and 1412 transitions. [2022-11-02 21:12:59,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:59,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1412 transitions. [2022-11-02 21:12:59,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-02 21:12:59,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:59,185 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:59,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:59,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:12:59,398 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:12:59,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:59,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1904148279, now seen corresponding path program 1 times [2022-11-02 21:12:59,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:12:59,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552516760] [2022-11-02 21:12:59,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:59,399 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:12:59,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:12:59,399 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:12:59,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2022-11-02 21:12:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:59,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:12:59,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:12:59,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:59,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:12:59,643 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:12:59,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552516760] [2022-11-02 21:12:59,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552516760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:59,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:59,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:12:59,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997580397] [2022-11-02 21:12:59,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:59,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:12:59,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:12:59,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:12:59,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:12:59,644 INFO L87 Difference]: Start difference. First operand 1004 states and 1412 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:59,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:59,913 INFO L93 Difference]: Finished difference Result 1021 states and 1430 transitions. [2022-11-02 21:12:59,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:12:59,913 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2022-11-02 21:12:59,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:59,916 INFO L225 Difference]: With dead ends: 1021 [2022-11-02 21:12:59,916 INFO L226 Difference]: Without dead ends: 1004 [2022-11-02 21:12:59,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:12:59,917 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 62 mSDsluCounter, 4313 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4860 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:59,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 4860 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:12:59,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2022-11-02 21:12:59,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 1004. [2022-11-02 21:12:59,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 830 states have (on average 1.344578313253012) internal successors, (1116), 860 states have internal predecessors, (1116), 116 states have call successors, (116), 41 states have call predecessors, (116), 57 states have return successors, (176), 102 states have call predecessors, (176), 110 states have call successors, (176) [2022-11-02 21:12:59,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1408 transitions. [2022-11-02 21:12:59,939 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1408 transitions. Word has length 47 [2022-11-02 21:12:59,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:59,940 INFO L495 AbstractCegarLoop]: Abstraction has 1004 states and 1408 transitions. [2022-11-02 21:12:59,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:12:59,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1408 transitions. [2022-11-02 21:12:59,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-02 21:12:59,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:59,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:59,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:00,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:00,155 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:00,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:00,156 INFO L85 PathProgramCache]: Analyzing trace with hash 2046804371, now seen corresponding path program 1 times [2022-11-02 21:13:00,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:00,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112551599] [2022-11-02 21:13:00,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:00,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:00,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:00,157 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:00,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2022-11-02 21:13:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:00,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:13:00,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:00,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:00,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:00,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:00,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1112551599] [2022-11-02 21:13:00,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1112551599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:00,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:00,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:13:00,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082919813] [2022-11-02 21:13:00,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:00,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:13:00,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:00,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:13:00,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:13:00,324 INFO L87 Difference]: Start difference. First operand 1004 states and 1408 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:00,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:00,358 INFO L93 Difference]: Finished difference Result 1033 states and 1448 transitions. [2022-11-02 21:13:00,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:13:00,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2022-11-02 21:13:00,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:00,361 INFO L225 Difference]: With dead ends: 1033 [2022-11-02 21:13:00,362 INFO L226 Difference]: Without dead ends: 1033 [2022-11-02 21:13:00,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:13:00,363 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 39 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:00,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 2262 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:13:00,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2022-11-02 21:13:00,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1012. [2022-11-02 21:13:00,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 836 states have (on average 1.3421052631578947) internal successors, (1122), 866 states have internal predecessors, (1122), 116 states have call successors, (116), 41 states have call predecessors, (116), 59 states have return successors, (186), 104 states have call predecessors, (186), 110 states have call successors, (186) [2022-11-02 21:13:00,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1424 transitions. [2022-11-02 21:13:00,389 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1424 transitions. Word has length 47 [2022-11-02 21:13:00,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:00,389 INFO L495 AbstractCegarLoop]: Abstraction has 1012 states and 1424 transitions. [2022-11-02 21:13:00,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:00,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1424 transitions. [2022-11-02 21:13:00,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-02 21:13:00,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:00,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:00,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (51)] Ended with exit code 0 [2022-11-02 21:13:00,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:00,605 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:00,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:00,606 INFO L85 PathProgramCache]: Analyzing trace with hash 791864886, now seen corresponding path program 1 times [2022-11-02 21:13:00,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:00,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2000229996] [2022-11-02 21:13:00,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:00,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:00,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:00,608 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:00,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2022-11-02 21:13:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:00,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:13:00,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:00,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:00,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:00,753 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:00,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2000229996] [2022-11-02 21:13:00,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2000229996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:00,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:00,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:13:00,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080657779] [2022-11-02 21:13:00,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:00,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:13:00,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:00,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:13:00,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:13:00,755 INFO L87 Difference]: Start difference. First operand 1012 states and 1424 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:00,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:00,772 INFO L93 Difference]: Finished difference Result 964 states and 1315 transitions. [2022-11-02 21:13:00,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:13:00,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2022-11-02 21:13:00,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:00,776 INFO L225 Difference]: With dead ends: 964 [2022-11-02 21:13:00,776 INFO L226 Difference]: Without dead ends: 962 [2022-11-02 21:13:00,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:13:00,778 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 3 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:00,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1072 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:13:00,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-11-02 21:13:00,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 865. [2022-11-02 21:13:00,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 726 states have (on average 1.334710743801653) internal successors, (969), 743 states have internal predecessors, (969), 87 states have call successors, (87), 38 states have call predecessors, (87), 51 states have return successors, (115), 83 states have call predecessors, (115), 81 states have call successors, (115) [2022-11-02 21:13:00,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1171 transitions. [2022-11-02 21:13:00,796 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1171 transitions. Word has length 47 [2022-11-02 21:13:00,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:00,797 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 1171 transitions. [2022-11-02 21:13:00,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:00,797 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1171 transitions. [2022-11-02 21:13:00,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-02 21:13:00,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:00,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:00,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:01,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:01,012 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:01,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:01,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1366311556, now seen corresponding path program 1 times [2022-11-02 21:13:01,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:01,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943929262] [2022-11-02 21:13:01,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:01,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:01,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:01,013 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:01,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2022-11-02 21:13:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:01,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:13:01,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:01,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:01,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:01,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:01,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943929262] [2022-11-02 21:13:01,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943929262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:01,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:01,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:13:01,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331882824] [2022-11-02 21:13:01,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:01,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:13:01,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:01,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:13:01,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:13:01,275 INFO L87 Difference]: Start difference. First operand 865 states and 1171 transitions. Second operand has 10 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:13:01,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:01,565 INFO L93 Difference]: Finished difference Result 896 states and 1203 transitions. [2022-11-02 21:13:01,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:13:01,566 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 52 [2022-11-02 21:13:01,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:01,568 INFO L225 Difference]: With dead ends: 896 [2022-11-02 21:13:01,568 INFO L226 Difference]: Without dead ends: 879 [2022-11-02 21:13:01,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:13:01,569 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 64 mSDsluCounter, 4292 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 4849 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:01,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 4849 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:01,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2022-11-02 21:13:01,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 863. [2022-11-02 21:13:01,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 725 states have (on average 1.333793103448276) internal successors, (967), 742 states have internal predecessors, (967), 86 states have call successors, (86), 38 states have call predecessors, (86), 51 states have return successors, (114), 82 states have call predecessors, (114), 80 states have call successors, (114) [2022-11-02 21:13:01,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1167 transitions. [2022-11-02 21:13:01,586 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1167 transitions. Word has length 52 [2022-11-02 21:13:01,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:01,586 INFO L495 AbstractCegarLoop]: Abstraction has 863 states and 1167 transitions. [2022-11-02 21:13:01,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:13:01,587 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1167 transitions. [2022-11-02 21:13:01,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-02 21:13:01,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:01,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:01,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:01,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:01,803 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:01,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:01,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1918382277, now seen corresponding path program 1 times [2022-11-02 21:13:01,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:01,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813263467] [2022-11-02 21:13:01,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:01,804 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:01,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:01,806 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:01,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2022-11-02 21:13:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:01,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:13:01,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:02,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:02,018 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:02,018 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:02,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [813263467] [2022-11-02 21:13:02,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [813263467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:02,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:02,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:13:02,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638492922] [2022-11-02 21:13:02,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:02,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:13:02,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:02,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:13:02,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:13:02,022 INFO L87 Difference]: Start difference. First operand 863 states and 1167 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:13:02,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:02,065 INFO L93 Difference]: Finished difference Result 883 states and 1189 transitions. [2022-11-02 21:13:02,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:13:02,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2022-11-02 21:13:02,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:02,069 INFO L225 Difference]: With dead ends: 883 [2022-11-02 21:13:02,069 INFO L226 Difference]: Without dead ends: 883 [2022-11-02 21:13:02,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:13:02,070 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 28 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:02,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 2160 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:13:02,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-11-02 21:13:02,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 865. [2022-11-02 21:13:02,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 727 states have (on average 1.3328748280605227) internal successors, (969), 743 states have internal predecessors, (969), 86 states have call successors, (86), 38 states have call predecessors, (86), 51 states have return successors, (114), 83 states have call predecessors, (114), 80 states have call successors, (114) [2022-11-02 21:13:02,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1169 transitions. [2022-11-02 21:13:02,087 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1169 transitions. Word has length 49 [2022-11-02 21:13:02,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:02,088 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 1169 transitions. [2022-11-02 21:13:02,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:13:02,088 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1169 transitions. [2022-11-02 21:13:02,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-02 21:13:02,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:02,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:02,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:02,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:02,303 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:02,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:02,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1443534431, now seen corresponding path program 1 times [2022-11-02 21:13:02,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:02,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305596265] [2022-11-02 21:13:02,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:02,304 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:02,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:02,306 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:02,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2022-11-02 21:13:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:02,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:13:02,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:02,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:02,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:02,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:02,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305596265] [2022-11-02 21:13:02,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305596265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:02,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:02,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 21:13:02,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758989068] [2022-11-02 21:13:02,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:02,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:13:02,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:02,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:13:02,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:13:02,656 INFO L87 Difference]: Start difference. First operand 865 states and 1169 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:02,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:02,953 INFO L93 Difference]: Finished difference Result 933 states and 1246 transitions. [2022-11-02 21:13:02,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:13:02,954 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2022-11-02 21:13:02,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:02,956 INFO L225 Difference]: With dead ends: 933 [2022-11-02 21:13:02,957 INFO L226 Difference]: Without dead ends: 920 [2022-11-02 21:13:02,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:13:02,957 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 33 mSDsluCounter, 4225 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 4774 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:02,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 4774 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:02,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2022-11-02 21:13:02,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 874. [2022-11-02 21:13:02,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 734 states have (on average 1.3297002724795641) internal successors, (976), 751 states have internal predecessors, (976), 86 states have call successors, (86), 38 states have call predecessors, (86), 53 states have return successors, (120), 84 states have call predecessors, (120), 80 states have call successors, (120) [2022-11-02 21:13:02,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1182 transitions. [2022-11-02 21:13:02,975 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1182 transitions. Word has length 48 [2022-11-02 21:13:02,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:02,975 INFO L495 AbstractCegarLoop]: Abstraction has 874 states and 1182 transitions. [2022-11-02 21:13:02,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:02,976 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1182 transitions. [2022-11-02 21:13:02,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-02 21:13:02,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:02,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:02,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (55)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:03,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:03,192 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:03,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:03,192 INFO L85 PathProgramCache]: Analyzing trace with hash -642740247, now seen corresponding path program 1 times [2022-11-02 21:13:03,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:03,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618836075] [2022-11-02 21:13:03,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:03,193 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:03,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:03,194 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:03,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2022-11-02 21:13:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:03,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:13:03,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:03,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:03,431 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:03,431 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:03,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618836075] [2022-11-02 21:13:03,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618836075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:03,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:03,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:13:03,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823615406] [2022-11-02 21:13:03,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:03,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:13:03,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:03,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:13:03,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:13:03,433 INFO L87 Difference]: Start difference. First operand 874 states and 1182 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:13:03,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:03,676 INFO L93 Difference]: Finished difference Result 889 states and 1197 transitions. [2022-11-02 21:13:03,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:13:03,676 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 51 [2022-11-02 21:13:03,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:03,679 INFO L225 Difference]: With dead ends: 889 [2022-11-02 21:13:03,679 INFO L226 Difference]: Without dead ends: 872 [2022-11-02 21:13:03,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:13:03,680 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 62 mSDsluCounter, 4167 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4704 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:03,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 4704 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:03,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2022-11-02 21:13:03,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 872. [2022-11-02 21:13:03,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 733 states have (on average 1.3287858117326057) internal successors, (974), 750 states have internal predecessors, (974), 85 states have call successors, (85), 38 states have call predecessors, (85), 53 states have return successors, (119), 83 states have call predecessors, (119), 79 states have call successors, (119) [2022-11-02 21:13:03,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1178 transitions. [2022-11-02 21:13:03,694 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1178 transitions. Word has length 51 [2022-11-02 21:13:03,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:03,695 INFO L495 AbstractCegarLoop]: Abstraction has 872 states and 1178 transitions. [2022-11-02 21:13:03,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:13:03,695 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1178 transitions. [2022-11-02 21:13:03,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-02 21:13:03,697 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:03,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:03,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:03,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:03,910 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:03,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:03,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1448836095, now seen corresponding path program 1 times [2022-11-02 21:13:03,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:03,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1221658462] [2022-11-02 21:13:03,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:03,911 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:03,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:03,912 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:03,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2022-11-02 21:13:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:13:04,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:04,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:04,215 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:04,215 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:04,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1221658462] [2022-11-02 21:13:04,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1221658462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:04,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:04,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:13:04,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77566645] [2022-11-02 21:13:04,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:04,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:13:04,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:04,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:13:04,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:13:04,217 INFO L87 Difference]: Start difference. First operand 872 states and 1178 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:04,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:04,485 INFO L93 Difference]: Finished difference Result 889 states and 1196 transitions. [2022-11-02 21:13:04,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:13:04,486 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2022-11-02 21:13:04,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:04,488 INFO L225 Difference]: With dead ends: 889 [2022-11-02 21:13:04,488 INFO L226 Difference]: Without dead ends: 871 [2022-11-02 21:13:04,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:13:04,489 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 62 mSDsluCounter, 4101 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4620 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:04,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 4620 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:04,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2022-11-02 21:13:04,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 871. [2022-11-02 21:13:04,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 732 states have (on average 1.3210382513661203) internal successors, (967), 749 states have internal predecessors, (967), 85 states have call successors, (85), 38 states have call predecessors, (85), 53 states have return successors, (119), 83 states have call predecessors, (119), 79 states have call successors, (119) [2022-11-02 21:13:04,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1171 transitions. [2022-11-02 21:13:04,505 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1171 transitions. Word has length 49 [2022-11-02 21:13:04,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:04,506 INFO L495 AbstractCegarLoop]: Abstraction has 871 states and 1171 transitions. [2022-11-02 21:13:04,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:04,506 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1171 transitions. [2022-11-02 21:13:04,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-02 21:13:04,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:04,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:04,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:04,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:04,724 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:04,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:04,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1422191575, now seen corresponding path program 1 times [2022-11-02 21:13:04,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:04,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1271235081] [2022-11-02 21:13:04,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:04,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:04,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:04,726 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:04,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2022-11-02 21:13:04,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:04,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 21:13:04,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:04,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:04,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:04,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:04,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1271235081] [2022-11-02 21:13:04,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1271235081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:04,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:04,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:13:04,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505609971] [2022-11-02 21:13:04,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:04,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:13:04,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:04,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:13:04,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:13:04,907 INFO L87 Difference]: Start difference. First operand 871 states and 1171 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:13:04,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:04,987 INFO L93 Difference]: Finished difference Result 892 states and 1194 transitions. [2022-11-02 21:13:04,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:13:04,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-11-02 21:13:04,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:04,990 INFO L225 Difference]: With dead ends: 892 [2022-11-02 21:13:04,990 INFO L226 Difference]: Without dead ends: 892 [2022-11-02 21:13:04,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:13:04,990 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 39 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:04,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1526 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:04,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2022-11-02 21:13:05,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 873. [2022-11-02 21:13:05,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 734 states have (on average 1.3201634877384196) internal successors, (969), 751 states have internal predecessors, (969), 85 states have call successors, (85), 38 states have call predecessors, (85), 53 states have return successors, (119), 83 states have call predecessors, (119), 79 states have call successors, (119) [2022-11-02 21:13:05,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1173 transitions. [2022-11-02 21:13:05,007 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1173 transitions. Word has length 48 [2022-11-02 21:13:05,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:05,007 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1173 transitions. [2022-11-02 21:13:05,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:13:05,008 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1173 transitions. [2022-11-02 21:13:05,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-02 21:13:05,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:05,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:05,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:05,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:05,222 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:05,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:05,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1288178069, now seen corresponding path program 1 times [2022-11-02 21:13:05,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:05,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066713825] [2022-11-02 21:13:05,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:05,224 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:05,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:05,226 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:05,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2022-11-02 21:13:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:05,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:13:05,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:05,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:05,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:05,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:05,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066713825] [2022-11-02 21:13:05,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066713825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:05,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:05,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:13:05,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977799799] [2022-11-02 21:13:05,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:05,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:13:05,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:05,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:13:05,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:13:05,487 INFO L87 Difference]: Start difference. First operand 873 states and 1173 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:13:05,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:05,633 INFO L93 Difference]: Finished difference Result 891 states and 1192 transitions. [2022-11-02 21:13:05,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:13:05,634 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-11-02 21:13:05,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:05,636 INFO L225 Difference]: With dead ends: 891 [2022-11-02 21:13:05,637 INFO L226 Difference]: Without dead ends: 870 [2022-11-02 21:13:05,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:13:05,637 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 60 mSDsluCounter, 2545 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3064 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:05,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3064 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:05,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2022-11-02 21:13:05,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 870. [2022-11-02 21:13:05,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 731 states have (on average 1.3132694938440492) internal successors, (960), 748 states have internal predecessors, (960), 85 states have call successors, (85), 38 states have call predecessors, (85), 53 states have return successors, (119), 83 states have call predecessors, (119), 79 states have call successors, (119) [2022-11-02 21:13:05,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1164 transitions. [2022-11-02 21:13:05,653 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1164 transitions. Word has length 48 [2022-11-02 21:13:05,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:05,654 INFO L495 AbstractCegarLoop]: Abstraction has 870 states and 1164 transitions. [2022-11-02 21:13:05,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:13:05,654 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1164 transitions. [2022-11-02 21:13:05,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-02 21:13:05,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:05,656 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:05,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:05,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:05,869 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:05,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:05,869 INFO L85 PathProgramCache]: Analyzing trace with hash 908630671, now seen corresponding path program 1 times [2022-11-02 21:13:05,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:05,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1447758743] [2022-11-02 21:13:05,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:05,870 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:05,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:05,871 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:05,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2022-11-02 21:13:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:06,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:06,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:06,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:06,243 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:06,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:06,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1447758743] [2022-11-02 21:13:06,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1447758743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:06,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:06,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:06,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943231151] [2022-11-02 21:13:06,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:06,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:06,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:06,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:06,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:06,245 INFO L87 Difference]: Start difference. First operand 870 states and 1164 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:06,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:06,523 INFO L93 Difference]: Finished difference Result 909 states and 1203 transitions. [2022-11-02 21:13:06,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:06,523 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-11-02 21:13:06,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:06,525 INFO L225 Difference]: With dead ends: 909 [2022-11-02 21:13:06,525 INFO L226 Difference]: Without dead ends: 895 [2022-11-02 21:13:06,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:13:06,526 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 42 mSDsluCounter, 5088 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 5614 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:06,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 5614 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:06,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2022-11-02 21:13:06,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 870. [2022-11-02 21:13:06,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 731 states have (on average 1.3132694938440492) internal successors, (960), 748 states have internal predecessors, (960), 85 states have call successors, (85), 38 states have call predecessors, (85), 53 states have return successors, (118), 83 states have call predecessors, (118), 79 states have call successors, (118) [2022-11-02 21:13:06,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1163 transitions. [2022-11-02 21:13:06,542 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1163 transitions. Word has length 57 [2022-11-02 21:13:06,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:06,542 INFO L495 AbstractCegarLoop]: Abstraction has 870 states and 1163 transitions. [2022-11-02 21:13:06,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:06,543 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1163 transitions. [2022-11-02 21:13:06,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-02 21:13:06,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:06,545 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:06,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (60)] Ended with exit code 0 [2022-11-02 21:13:06,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:06,757 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:06,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:06,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1327042800, now seen corresponding path program 1 times [2022-11-02 21:13:06,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:06,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604190192] [2022-11-02 21:13:06,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:06,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:06,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:06,759 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:06,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2022-11-02 21:13:06,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:06,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:13:06,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:07,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:07,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:07,104 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:07,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604190192] [2022-11-02 21:13:07,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604190192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:07,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:07,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 21:13:07,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006965438] [2022-11-02 21:13:07,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:07,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:13:07,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:07,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:13:07,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:13:07,107 INFO L87 Difference]: Start difference. First operand 870 states and 1163 transitions. Second operand has 11 states, 11 states have (on average 4.0) internal successors, (44), 9 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:07,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:07,405 INFO L93 Difference]: Finished difference Result 928 states and 1225 transitions. [2022-11-02 21:13:07,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:13:07,405 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 9 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 49 [2022-11-02 21:13:07,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:07,407 INFO L225 Difference]: With dead ends: 928 [2022-11-02 21:13:07,407 INFO L226 Difference]: Without dead ends: 913 [2022-11-02 21:13:07,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:13:07,407 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 33 mSDsluCounter, 4136 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 4675 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:07,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 4675 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:07,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-11-02 21:13:07,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 858. [2022-11-02 21:13:07,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 722 states have (on average 1.314404432132964) internal successors, (949), 738 states have internal predecessors, (949), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (111), 81 states have call predecessors, (111), 78 states have call successors, (111) [2022-11-02 21:13:07,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1144 transitions. [2022-11-02 21:13:07,422 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1144 transitions. Word has length 49 [2022-11-02 21:13:07,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:07,422 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 1144 transitions. [2022-11-02 21:13:07,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 9 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:07,423 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1144 transitions. [2022-11-02 21:13:07,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-02 21:13:07,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:07,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:07,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:07,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:07,637 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:07,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:07,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1096222030, now seen corresponding path program 1 times [2022-11-02 21:13:07,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:07,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403704813] [2022-11-02 21:13:07,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:07,638 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:07,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:07,640 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:07,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2022-11-02 21:13:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:07,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:07,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:07,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:07,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:07,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:07,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403704813] [2022-11-02 21:13:07,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403704813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:07,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:07,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:07,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185440641] [2022-11-02 21:13:07,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:07,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:07,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:07,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:07,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:07,961 INFO L87 Difference]: Start difference. First operand 858 states and 1144 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:08,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:08,275 INFO L93 Difference]: Finished difference Result 927 states and 1221 transitions. [2022-11-02 21:13:08,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:08,276 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2022-11-02 21:13:08,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:08,278 INFO L225 Difference]: With dead ends: 927 [2022-11-02 21:13:08,278 INFO L226 Difference]: Without dead ends: 913 [2022-11-02 21:13:08,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:13:08,279 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 46 mSDsluCounter, 4615 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 5150 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:08,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 5150 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:08,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-11-02 21:13:08,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 867. [2022-11-02 21:13:08,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 729 states have (on average 1.3113854595336076) internal successors, (956), 746 states have internal predecessors, (956), 84 states have call successors, (84), 38 states have call predecessors, (84), 53 states have return successors, (116), 82 states have call predecessors, (116), 78 states have call successors, (116) [2022-11-02 21:13:08,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1156 transitions. [2022-11-02 21:13:08,294 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1156 transitions. Word has length 50 [2022-11-02 21:13:08,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:08,294 INFO L495 AbstractCegarLoop]: Abstraction has 867 states and 1156 transitions. [2022-11-02 21:13:08,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:08,295 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1156 transitions. [2022-11-02 21:13:08,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-02 21:13:08,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:08,304 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:08,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (62)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:08,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:08,518 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:08,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:08,518 INFO L85 PathProgramCache]: Analyzing trace with hash -692563454, now seen corresponding path program 1 times [2022-11-02 21:13:08,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:08,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526230849] [2022-11-02 21:13:08,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:08,519 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:08,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:08,520 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:08,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2022-11-02 21:13:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:08,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:08,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:08,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:08,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:08,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:08,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526230849] [2022-11-02 21:13:08,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526230849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:08,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:08,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:08,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127006980] [2022-11-02 21:13:08,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:08,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:08,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:08,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:08,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:08,894 INFO L87 Difference]: Start difference. First operand 867 states and 1156 transitions. Second operand has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:09,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:09,228 INFO L93 Difference]: Finished difference Result 927 states and 1220 transitions. [2022-11-02 21:13:09,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:09,229 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 49 [2022-11-02 21:13:09,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:09,231 INFO L225 Difference]: With dead ends: 927 [2022-11-02 21:13:09,231 INFO L226 Difference]: Without dead ends: 913 [2022-11-02 21:13:09,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:13:09,232 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 42 mSDsluCounter, 5101 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 5631 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:09,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 5631 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:09,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-11-02 21:13:09,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 867. [2022-11-02 21:13:09,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 729 states have (on average 1.3113854595336076) internal successors, (956), 746 states have internal predecessors, (956), 84 states have call successors, (84), 38 states have call predecessors, (84), 53 states have return successors, (115), 82 states have call predecessors, (115), 78 states have call successors, (115) [2022-11-02 21:13:09,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1155 transitions. [2022-11-02 21:13:09,248 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1155 transitions. Word has length 49 [2022-11-02 21:13:09,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:09,248 INFO L495 AbstractCegarLoop]: Abstraction has 867 states and 1155 transitions. [2022-11-02 21:13:09,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:09,249 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1155 transitions. [2022-11-02 21:13:09,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-02 21:13:09,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:09,251 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:09,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (63)] Ended with exit code 0 [2022-11-02 21:13:09,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:09,463 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:09,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:09,464 INFO L85 PathProgramCache]: Analyzing trace with hash 110672091, now seen corresponding path program 1 times [2022-11-02 21:13:09,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:09,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117362805] [2022-11-02 21:13:09,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:09,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:09,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:09,466 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:09,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2022-11-02 21:13:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:09,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:09,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:09,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:09,869 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:09,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:09,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117362805] [2022-11-02 21:13:09,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1117362805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:09,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:09,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:09,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294304066] [2022-11-02 21:13:09,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:09,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:09,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:09,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:09,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:09,871 INFO L87 Difference]: Start difference. First operand 867 states and 1155 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:10,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:10,232 INFO L93 Difference]: Finished difference Result 927 states and 1219 transitions. [2022-11-02 21:13:10,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:10,234 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 59 [2022-11-02 21:13:10,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:10,236 INFO L225 Difference]: With dead ends: 927 [2022-11-02 21:13:10,236 INFO L226 Difference]: Without dead ends: 913 [2022-11-02 21:13:10,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:13:10,237 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 46 mSDsluCounter, 4602 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 5134 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:10,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 5134 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:13:10,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-11-02 21:13:10,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 867. [2022-11-02 21:13:10,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 729 states have (on average 1.3113854595336076) internal successors, (956), 746 states have internal predecessors, (956), 84 states have call successors, (84), 38 states have call predecessors, (84), 53 states have return successors, (114), 82 states have call predecessors, (114), 78 states have call successors, (114) [2022-11-02 21:13:10,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1154 transitions. [2022-11-02 21:13:10,254 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1154 transitions. Word has length 59 [2022-11-02 21:13:10,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:10,255 INFO L495 AbstractCegarLoop]: Abstraction has 867 states and 1154 transitions. [2022-11-02 21:13:10,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:10,255 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1154 transitions. [2022-11-02 21:13:10,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-02 21:13:10,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:10,257 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:10,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (64)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:10,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:10,471 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:10,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:10,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1369472507, now seen corresponding path program 1 times [2022-11-02 21:13:10,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:10,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007776755] [2022-11-02 21:13:10,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:10,474 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:10,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:10,475 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:10,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2022-11-02 21:13:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:10,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:10,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:10,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:10,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:10,832 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:10,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007776755] [2022-11-02 21:13:10,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2007776755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:10,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:10,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:10,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639132852] [2022-11-02 21:13:10,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:10,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:10,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:10,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:10,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:10,834 INFO L87 Difference]: Start difference. First operand 867 states and 1154 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:11,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:11,129 INFO L93 Difference]: Finished difference Result 927 states and 1218 transitions. [2022-11-02 21:13:11,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:11,130 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2022-11-02 21:13:11,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:11,132 INFO L225 Difference]: With dead ends: 927 [2022-11-02 21:13:11,132 INFO L226 Difference]: Without dead ends: 913 [2022-11-02 21:13:11,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:13:11,133 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 42 mSDsluCounter, 5122 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 5654 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:11,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 5654 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:11,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-11-02 21:13:11,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 858. [2022-11-02 21:13:11,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 722 states have (on average 1.314404432132964) internal successors, (949), 738 states have internal predecessors, (949), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (111), 81 states have call predecessors, (111), 78 states have call successors, (111) [2022-11-02 21:13:11,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1144 transitions. [2022-11-02 21:13:11,150 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1144 transitions. Word has length 56 [2022-11-02 21:13:11,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:11,150 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 1144 transitions. [2022-11-02 21:13:11,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:11,150 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1144 transitions. [2022-11-02 21:13:11,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-02 21:13:11,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:11,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:11,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (65)] Ended with exit code 0 [2022-11-02 21:13:11,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:11,365 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:11,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:11,366 INFO L85 PathProgramCache]: Analyzing trace with hash 707219433, now seen corresponding path program 1 times [2022-11-02 21:13:11,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:11,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542347832] [2022-11-02 21:13:11,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:11,366 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:11,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:11,368 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:11,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2022-11-02 21:13:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:11,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:13:11,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:11,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:11,754 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:11,754 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:11,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542347832] [2022-11-02 21:13:11,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542347832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:11,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:11,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:13:11,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287094320] [2022-11-02 21:13:11,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:11,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:13:11,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:11,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:13:11,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:13:11,756 INFO L87 Difference]: Start difference. First operand 858 states and 1144 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-02 21:13:12,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:12,091 INFO L93 Difference]: Finished difference Result 858 states and 1136 transitions. [2022-11-02 21:13:12,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:13:12,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 53 [2022-11-02 21:13:12,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:12,094 INFO L225 Difference]: With dead ends: 858 [2022-11-02 21:13:12,094 INFO L226 Difference]: Without dead ends: 858 [2022-11-02 21:13:12,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:13:12,095 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 488 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:12,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 884 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:13:12,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2022-11-02 21:13:12,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 858. [2022-11-02 21:13:12,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 722 states have (on average 1.3033240997229918) internal successors, (941), 738 states have internal predecessors, (941), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (111), 81 states have call predecessors, (111), 78 states have call successors, (111) [2022-11-02 21:13:12,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1136 transitions. [2022-11-02 21:13:12,109 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1136 transitions. Word has length 53 [2022-11-02 21:13:12,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:12,110 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 1136 transitions. [2022-11-02 21:13:12,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-02 21:13:12,110 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1136 transitions. [2022-11-02 21:13:12,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-02 21:13:12,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:12,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:12,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (66)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:12,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:12,325 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:12,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:12,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1303785248, now seen corresponding path program 1 times [2022-11-02 21:13:12,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:12,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725202875] [2022-11-02 21:13:12,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:12,326 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:12,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:12,327 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:12,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2022-11-02 21:13:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:12,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:13:12,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:12,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:12,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:12,505 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:12,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725202875] [2022-11-02 21:13:12,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725202875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:12,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:12,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:13:12,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032130814] [2022-11-02 21:13:12,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:12,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:13:12,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:12,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:13:12,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:13:12,507 INFO L87 Difference]: Start difference. First operand 858 states and 1136 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:13:12,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:12,546 INFO L93 Difference]: Finished difference Result 878 states and 1158 transitions. [2022-11-02 21:13:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:13:12,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2022-11-02 21:13:12,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:12,549 INFO L225 Difference]: With dead ends: 878 [2022-11-02 21:13:12,549 INFO L226 Difference]: Without dead ends: 878 [2022-11-02 21:13:12,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:13:12,550 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 33 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:12,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2088 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:13:12,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2022-11-02 21:13:12,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 860. [2022-11-02 21:13:12,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 724 states have (on average 1.3024861878453038) internal successors, (943), 739 states have internal predecessors, (943), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (111), 82 states have call predecessors, (111), 78 states have call successors, (111) [2022-11-02 21:13:12,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1138 transitions. [2022-11-02 21:13:12,566 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1138 transitions. Word has length 51 [2022-11-02 21:13:12,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:12,566 INFO L495 AbstractCegarLoop]: Abstraction has 860 states and 1138 transitions. [2022-11-02 21:13:12,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:13:12,567 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1138 transitions. [2022-11-02 21:13:12,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-02 21:13:12,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:12,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:12,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (67)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:12,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:12,781 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:12,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:12,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1797533827, now seen corresponding path program 1 times [2022-11-02 21:13:12,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:12,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1712057207] [2022-11-02 21:13:12,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:12,782 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:12,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:12,784 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:12,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2022-11-02 21:13:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:12,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:13:12,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:12,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:12,975 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:12,975 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:12,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1712057207] [2022-11-02 21:13:12,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1712057207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:12,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:12,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:13:12,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291563924] [2022-11-02 21:13:12,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:12,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:13:12,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:12,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:13:12,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:13:12,976 INFO L87 Difference]: Start difference. First operand 860 states and 1138 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:13,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:13,045 INFO L93 Difference]: Finished difference Result 925 states and 1214 transitions. [2022-11-02 21:13:13,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:13:13,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2022-11-02 21:13:13,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:13,047 INFO L225 Difference]: With dead ends: 925 [2022-11-02 21:13:13,047 INFO L226 Difference]: Without dead ends: 925 [2022-11-02 21:13:13,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:13:13,048 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 172 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:13,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 1496 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:13:13,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2022-11-02 21:13:13,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 866. [2022-11-02 21:13:13,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 729 states have (on average 1.3017832647462277) internal successors, (949), 744 states have internal predecessors, (949), 85 states have call successors, (85), 38 states have call predecessors, (85), 51 states have return successors, (112), 83 states have call predecessors, (112), 79 states have call successors, (112) [2022-11-02 21:13:13,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1146 transitions. [2022-11-02 21:13:13,061 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1146 transitions. Word has length 50 [2022-11-02 21:13:13,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:13,061 INFO L495 AbstractCegarLoop]: Abstraction has 866 states and 1146 transitions. [2022-11-02 21:13:13,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:13,061 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1146 transitions. [2022-11-02 21:13:13,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-02 21:13:13,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:13,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:13,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (68)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:13,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:13,263 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:13,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:13,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1224915852, now seen corresponding path program 1 times [2022-11-02 21:13:13,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:13,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812953003] [2022-11-02 21:13:13,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:13,264 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:13,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:13,265 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:13,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2022-11-02 21:13:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:13,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:13,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:13,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:13,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:13,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:13,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1812953003] [2022-11-02 21:13:13,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1812953003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:13,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:13,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:13,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150380170] [2022-11-02 21:13:13,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:13,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:13,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:13,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:13,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:13,655 INFO L87 Difference]: Start difference. First operand 866 states and 1146 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 10 states have internal predecessors, (55), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:14,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:14,005 INFO L93 Difference]: Finished difference Result 919 states and 1199 transitions. [2022-11-02 21:13:14,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:14,006 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 10 states have internal predecessors, (55), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 60 [2022-11-02 21:13:14,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:14,008 INFO L225 Difference]: With dead ends: 919 [2022-11-02 21:13:14,008 INFO L226 Difference]: Without dead ends: 904 [2022-11-02 21:13:14,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:13:14,009 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 42 mSDsluCounter, 5073 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 5604 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:14,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 5604 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:13:14,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2022-11-02 21:13:14,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 864. [2022-11-02 21:13:14,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 728 states have (on average 1.2994505494505495) internal successors, (946), 743 states have internal predecessors, (946), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (111), 82 states have call predecessors, (111), 78 states have call successors, (111) [2022-11-02 21:13:14,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1141 transitions. [2022-11-02 21:13:14,026 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1141 transitions. Word has length 60 [2022-11-02 21:13:14,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:14,026 INFO L495 AbstractCegarLoop]: Abstraction has 864 states and 1141 transitions. [2022-11-02 21:13:14,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 10 states have internal predecessors, (55), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:14,027 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1141 transitions. [2022-11-02 21:13:14,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-02 21:13:14,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:14,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:14,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (69)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:14,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:14,242 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:14,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:14,243 INFO L85 PathProgramCache]: Analyzing trace with hash -299447701, now seen corresponding path program 1 times [2022-11-02 21:13:14,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:14,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103206137] [2022-11-02 21:13:14,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:14,243 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:14,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:14,244 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:14,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2022-11-02 21:13:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:14,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:14,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:14,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:14,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:14,597 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:14,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103206137] [2022-11-02 21:13:14,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103206137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:14,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:14,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:14,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173059508] [2022-11-02 21:13:14,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:14,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:14,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:14,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:14,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:14,598 INFO L87 Difference]: Start difference. First operand 864 states and 1141 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 10 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:14,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:14,919 INFO L93 Difference]: Finished difference Result 916 states and 1193 transitions. [2022-11-02 21:13:14,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:14,919 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 10 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 51 [2022-11-02 21:13:14,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:14,921 INFO L225 Difference]: With dead ends: 916 [2022-11-02 21:13:14,921 INFO L226 Difference]: Without dead ends: 901 [2022-11-02 21:13:14,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:13:14,922 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 46 mSDsluCounter, 4562 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 5091 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:14,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 5091 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:14,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2022-11-02 21:13:14,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 861. [2022-11-02 21:13:14,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 726 states have (on average 1.2975206611570247) internal successors, (942), 741 states have internal predecessors, (942), 83 states have call successors, (83), 38 states have call predecessors, (83), 51 states have return successors, (110), 81 states have call predecessors, (110), 77 states have call successors, (110) [2022-11-02 21:13:14,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1135 transitions. [2022-11-02 21:13:14,944 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1135 transitions. Word has length 51 [2022-11-02 21:13:14,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:14,944 INFO L495 AbstractCegarLoop]: Abstraction has 861 states and 1135 transitions. [2022-11-02 21:13:14,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 10 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:14,944 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1135 transitions. [2022-11-02 21:13:14,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-02 21:13:14,946 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:14,946 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:14,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (70)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:15,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:15,161 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:15,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:15,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1170886567, now seen corresponding path program 1 times [2022-11-02 21:13:15,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:15,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697352027] [2022-11-02 21:13:15,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:15,162 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:15,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:15,164 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:15,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2022-11-02 21:13:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:15,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:15,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:15,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:15,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:15,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:15,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697352027] [2022-11-02 21:13:15,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697352027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:15,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:15,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:15,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147760400] [2022-11-02 21:13:15,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:15,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:15,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:15,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:15,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:15,572 INFO L87 Difference]: Start difference. First operand 861 states and 1135 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:15,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:15,865 INFO L93 Difference]: Finished difference Result 913 states and 1187 transitions. [2022-11-02 21:13:15,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:15,865 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2022-11-02 21:13:15,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:15,867 INFO L225 Difference]: With dead ends: 913 [2022-11-02 21:13:15,867 INFO L226 Difference]: Without dead ends: 896 [2022-11-02 21:13:15,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:13:15,868 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 46 mSDsluCounter, 4467 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 4979 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:15,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 4979 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:15,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2022-11-02 21:13:15,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 856. [2022-11-02 21:13:15,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 722 states have (on average 1.296398891966759) internal successors, (936), 737 states have internal predecessors, (936), 82 states have call successors, (82), 38 states have call predecessors, (82), 51 states have return successors, (109), 80 states have call predecessors, (109), 76 states have call successors, (109) [2022-11-02 21:13:15,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1127 transitions. [2022-11-02 21:13:15,883 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1127 transitions. Word has length 50 [2022-11-02 21:13:15,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:15,883 INFO L495 AbstractCegarLoop]: Abstraction has 856 states and 1127 transitions. [2022-11-02 21:13:15,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:15,883 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1127 transitions. [2022-11-02 21:13:15,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-02 21:13:15,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:15,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:15,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (71)] Ended with exit code 0 [2022-11-02 21:13:16,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:16,098 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:16,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:16,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1007488154, now seen corresponding path program 1 times [2022-11-02 21:13:16,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:16,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509915907] [2022-11-02 21:13:16,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:16,099 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:16,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:16,100 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:16,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2022-11-02 21:13:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:16,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:13:16,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:16,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:16,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:16,307 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:16,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509915907] [2022-11-02 21:13:16,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509915907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:16,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:16,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:13:16,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926727512] [2022-11-02 21:13:16,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:16,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:13:16,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:16,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:13:16,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:13:16,309 INFO L87 Difference]: Start difference. First operand 856 states and 1127 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:16,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:16,458 INFO L93 Difference]: Finished difference Result 872 states and 1141 transitions. [2022-11-02 21:13:16,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:13:16,459 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2022-11-02 21:13:16,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:16,461 INFO L225 Difference]: With dead ends: 872 [2022-11-02 21:13:16,461 INFO L226 Difference]: Without dead ends: 872 [2022-11-02 21:13:16,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:13:16,462 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 41 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 2456 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:16,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 2456 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:16,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2022-11-02 21:13:16,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 856. [2022-11-02 21:13:16,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 722 states have (on average 1.2922437673130194) internal successors, (933), 737 states have internal predecessors, (933), 82 states have call successors, (82), 38 states have call predecessors, (82), 51 states have return successors, (109), 80 states have call predecessors, (109), 76 states have call successors, (109) [2022-11-02 21:13:16,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1124 transitions. [2022-11-02 21:13:16,477 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1124 transitions. Word has length 51 [2022-11-02 21:13:16,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:16,477 INFO L495 AbstractCegarLoop]: Abstraction has 856 states and 1124 transitions. [2022-11-02 21:13:16,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:16,478 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1124 transitions. [2022-11-02 21:13:16,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-02 21:13:16,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:16,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:16,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (72)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:16,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:16,692 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:16,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:16,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1141501660, now seen corresponding path program 1 times [2022-11-02 21:13:16,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:16,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148535913] [2022-11-02 21:13:16,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:16,693 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:16,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:16,694 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:16,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2022-11-02 21:13:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:16,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:13:16,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:16,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:16,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:16,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:16,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148535913] [2022-11-02 21:13:16,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1148535913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:16,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:16,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:13:16,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155622489] [2022-11-02 21:13:16,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:16,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:13:16,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:16,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:13:16,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:13:16,960 INFO L87 Difference]: Start difference. First operand 856 states and 1124 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:17,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:17,187 INFO L93 Difference]: Finished difference Result 871 states and 1139 transitions. [2022-11-02 21:13:17,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:13:17,187 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2022-11-02 21:13:17,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:17,191 INFO L225 Difference]: With dead ends: 871 [2022-11-02 21:13:17,191 INFO L226 Difference]: Without dead ends: 852 [2022-11-02 21:13:17,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:13:17,192 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 62 mSDsluCounter, 3395 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3900 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:17,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 3900 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:17,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2022-11-02 21:13:17,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 846. [2022-11-02 21:13:17,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 714 states have (on average 1.2941176470588236) internal successors, (924), 729 states have internal predecessors, (924), 80 states have call successors, (80), 38 states have call predecessors, (80), 51 states have return successors, (107), 78 states have call predecessors, (107), 74 states have call successors, (107) [2022-11-02 21:13:17,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1111 transitions. [2022-11-02 21:13:17,206 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1111 transitions. Word has length 51 [2022-11-02 21:13:17,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:17,207 INFO L495 AbstractCegarLoop]: Abstraction has 846 states and 1111 transitions. [2022-11-02 21:13:17,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:17,207 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1111 transitions. [2022-11-02 21:13:17,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-02 21:13:17,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:17,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:17,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (73)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:17,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:17,421 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:17,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:17,422 INFO L85 PathProgramCache]: Analyzing trace with hash 121557198, now seen corresponding path program 1 times [2022-11-02 21:13:17,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:17,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395746109] [2022-11-02 21:13:17,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:17,422 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:17,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:17,423 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:17,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2022-11-02 21:13:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:17,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:13:17,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:17,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:17,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:17,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:17,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395746109] [2022-11-02 21:13:17,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [395746109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:17,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:17,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:13:17,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762073936] [2022-11-02 21:13:17,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:17,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:13:17,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:17,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:13:17,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:13:17,702 INFO L87 Difference]: Start difference. First operand 846 states and 1111 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-02 21:13:18,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:18,001 INFO L93 Difference]: Finished difference Result 870 states and 1137 transitions. [2022-11-02 21:13:18,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:13:18,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 55 [2022-11-02 21:13:18,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:18,004 INFO L225 Difference]: With dead ends: 870 [2022-11-02 21:13:18,004 INFO L226 Difference]: Without dead ends: 869 [2022-11-02 21:13:18,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:13:18,004 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 584 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:18,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 895 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:13:18,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2022-11-02 21:13:18,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 832. [2022-11-02 21:13:18,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 702 states have (on average 1.2905982905982907) internal successors, (906), 717 states have internal predecessors, (906), 80 states have call successors, (80), 38 states have call predecessors, (80), 49 states have return successors, (105), 76 states have call predecessors, (105), 74 states have call successors, (105) [2022-11-02 21:13:18,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1091 transitions. [2022-11-02 21:13:18,018 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1091 transitions. Word has length 55 [2022-11-02 21:13:18,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:18,019 INFO L495 AbstractCegarLoop]: Abstraction has 832 states and 1091 transitions. [2022-11-02 21:13:18,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-02 21:13:18,019 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1091 transitions. [2022-11-02 21:13:18,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-02 21:13:18,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:18,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:18,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (74)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:18,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:18,233 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:18,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:18,234 INFO L85 PathProgramCache]: Analyzing trace with hash 445712646, now seen corresponding path program 1 times [2022-11-02 21:13:18,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:18,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046938929] [2022-11-02 21:13:18,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:18,235 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:18,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:18,236 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:18,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2022-11-02 21:13:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:18,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:13:18,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:18,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:18,407 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:18,407 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:18,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046938929] [2022-11-02 21:13:18,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046938929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:18,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:18,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:13:18,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53455489] [2022-11-02 21:13:18,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:18,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:13:18,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:18,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:13:18,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:13:18,408 INFO L87 Difference]: Start difference. First operand 832 states and 1091 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:18,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:18,524 INFO L93 Difference]: Finished difference Result 853 states and 1114 transitions. [2022-11-02 21:13:18,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:13:18,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2022-11-02 21:13:18,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:18,526 INFO L225 Difference]: With dead ends: 853 [2022-11-02 21:13:18,526 INFO L226 Difference]: Without dead ends: 853 [2022-11-02 21:13:18,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:13:18,526 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 23 mSDsluCounter, 1455 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1964 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:18,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1964 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:18,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2022-11-02 21:13:18,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 832. [2022-11-02 21:13:18,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 702 states have (on average 1.289173789173789) internal successors, (905), 717 states have internal predecessors, (905), 80 states have call successors, (80), 38 states have call predecessors, (80), 49 states have return successors, (105), 76 states have call predecessors, (105), 74 states have call successors, (105) [2022-11-02 21:13:18,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1090 transitions. [2022-11-02 21:13:18,542 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1090 transitions. Word has length 52 [2022-11-02 21:13:18,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:18,542 INFO L495 AbstractCegarLoop]: Abstraction has 832 states and 1090 transitions. [2022-11-02 21:13:18,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:18,543 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1090 transitions. [2022-11-02 21:13:18,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-02 21:13:18,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:18,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:18,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (75)] Ended with exit code 0 [2022-11-02 21:13:18,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:18,757 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:18,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:18,758 INFO L85 PathProgramCache]: Analyzing trace with hash -765246994, now seen corresponding path program 1 times [2022-11-02 21:13:18,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:18,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504775169] [2022-11-02 21:13:18,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:18,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:18,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:18,760 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:18,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (76)] Waiting until timeout for monitored process [2022-11-02 21:13:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:18,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:13:18,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:18,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:18,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:18,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:18,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504775169] [2022-11-02 21:13:18,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504775169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:18,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:18,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:13:18,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765362892] [2022-11-02 21:13:18,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:18,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:13:18,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:18,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:13:18,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:13:18,990 INFO L87 Difference]: Start difference. First operand 832 states and 1090 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:13:19,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:19,008 INFO L93 Difference]: Finished difference Result 910 states and 1188 transitions. [2022-11-02 21:13:19,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:13:19,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2022-11-02 21:13:19,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:19,010 INFO L225 Difference]: With dead ends: 910 [2022-11-02 21:13:19,010 INFO L226 Difference]: Without dead ends: 910 [2022-11-02 21:13:19,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:13:19,011 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 102 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:19,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 1013 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:13:19,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2022-11-02 21:13:19,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 877. [2022-11-02 21:13:19,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 740 states have (on average 1.2851351351351352) internal successors, (951), 756 states have internal predecessors, (951), 81 states have call successors, (81), 40 states have call predecessors, (81), 55 states have return successors, (111), 80 states have call predecessors, (111), 76 states have call successors, (111) [2022-11-02 21:13:19,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1143 transitions. [2022-11-02 21:13:19,022 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1143 transitions. Word has length 56 [2022-11-02 21:13:19,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:19,022 INFO L495 AbstractCegarLoop]: Abstraction has 877 states and 1143 transitions. [2022-11-02 21:13:19,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-02 21:13:19,022 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1143 transitions. [2022-11-02 21:13:19,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-02 21:13:19,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:19,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:19,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (76)] Ended with exit code 0 [2022-11-02 21:13:19,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:19,224 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:19,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:19,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1308862555, now seen corresponding path program 1 times [2022-11-02 21:13:19,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:19,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161762763] [2022-11-02 21:13:19,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:19,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:19,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:19,226 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:19,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2022-11-02 21:13:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:19,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 21:13:19,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:19,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:19,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:19,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:19,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161762763] [2022-11-02 21:13:19,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [161762763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:19,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:19,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:13:19,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792919334] [2022-11-02 21:13:19,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:19,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:13:19,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:19,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:13:19,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:13:19,388 INFO L87 Difference]: Start difference. First operand 877 states and 1143 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:19,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:19,450 INFO L93 Difference]: Finished difference Result 898 states and 1166 transitions. [2022-11-02 21:13:19,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:13:19,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2022-11-02 21:13:19,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:19,452 INFO L225 Difference]: With dead ends: 898 [2022-11-02 21:13:19,452 INFO L226 Difference]: Without dead ends: 898 [2022-11-02 21:13:19,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:13:19,452 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 39 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:19,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1450 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:13:19,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-11-02 21:13:19,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 879. [2022-11-02 21:13:19,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 742 states have (on average 1.284366576819407) internal successors, (953), 758 states have internal predecessors, (953), 81 states have call successors, (81), 40 states have call predecessors, (81), 55 states have return successors, (111), 80 states have call predecessors, (111), 76 states have call successors, (111) [2022-11-02 21:13:19,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1145 transitions. [2022-11-02 21:13:19,463 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1145 transitions. Word has length 53 [2022-11-02 21:13:19,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:19,464 INFO L495 AbstractCegarLoop]: Abstraction has 879 states and 1145 transitions. [2022-11-02 21:13:19,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:19,464 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1145 transitions. [2022-11-02 21:13:19,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-02 21:13:19,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:19,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:19,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (77)] Ended with exit code 0 [2022-11-02 21:13:19,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:19,678 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:19,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:19,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1442876061, now seen corresponding path program 1 times [2022-11-02 21:13:19,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:19,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1255639295] [2022-11-02 21:13:19,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:19,680 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:19,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:19,683 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:19,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (78)] Waiting until timeout for monitored process [2022-11-02 21:13:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:19,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:13:19,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:19,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:19,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:19,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:19,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1255639295] [2022-11-02 21:13:19,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1255639295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:19,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:19,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:13:19,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579108743] [2022-11-02 21:13:19,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:19,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:13:19,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:19,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:13:19,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:13:19,883 INFO L87 Difference]: Start difference. First operand 879 states and 1145 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:20,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:20,061 INFO L93 Difference]: Finished difference Result 897 states and 1164 transitions. [2022-11-02 21:13:20,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:13:20,062 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2022-11-02 21:13:20,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:20,064 INFO L225 Difference]: With dead ends: 897 [2022-11-02 21:13:20,064 INFO L226 Difference]: Without dead ends: 877 [2022-11-02 21:13:20,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:13:20,064 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 60 mSDsluCounter, 2398 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 2901 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:20,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 2901 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:20,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2022-11-02 21:13:20,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 875. [2022-11-02 21:13:20,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 738 states have (on average 1.2845528455284554) internal successors, (948), 755 states have internal predecessors, (948), 81 states have call successors, (81), 40 states have call predecessors, (81), 55 states have return successors, (111), 79 states have call predecessors, (111), 76 states have call successors, (111) [2022-11-02 21:13:20,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1140 transitions. [2022-11-02 21:13:20,081 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1140 transitions. Word has length 53 [2022-11-02 21:13:20,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:20,082 INFO L495 AbstractCegarLoop]: Abstraction has 875 states and 1140 transitions. [2022-11-02 21:13:20,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:20,082 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1140 transitions. [2022-11-02 21:13:20,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-02 21:13:20,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:20,084 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:20,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (78)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:20,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:20,296 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:20,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:20,297 INFO L85 PathProgramCache]: Analyzing trace with hash 820450658, now seen corresponding path program 1 times [2022-11-02 21:13:20,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:20,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567849154] [2022-11-02 21:13:20,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:20,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:20,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:20,298 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:20,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2022-11-02 21:13:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:20,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:13:20,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:20,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:20,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:20,479 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:20,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567849154] [2022-11-02 21:13:20,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567849154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:20,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:20,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:13:20,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819971219] [2022-11-02 21:13:20,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:20,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:13:20,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:20,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:13:20,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:13:20,480 INFO L87 Difference]: Start difference. First operand 875 states and 1140 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:20,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:20,594 INFO L93 Difference]: Finished difference Result 896 states and 1163 transitions. [2022-11-02 21:13:20,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:13:20,595 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2022-11-02 21:13:20,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:20,596 INFO L225 Difference]: With dead ends: 896 [2022-11-02 21:13:20,596 INFO L226 Difference]: Without dead ends: 896 [2022-11-02 21:13:20,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:13:20,597 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 45 mSDsluCounter, 1929 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2434 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:20,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2434 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:20,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2022-11-02 21:13:20,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 875. [2022-11-02 21:13:20,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 738 states have (on average 1.2831978319783197) internal successors, (947), 755 states have internal predecessors, (947), 81 states have call successors, (81), 40 states have call predecessors, (81), 55 states have return successors, (111), 79 states have call predecessors, (111), 76 states have call successors, (111) [2022-11-02 21:13:20,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1139 transitions. [2022-11-02 21:13:20,613 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1139 transitions. Word has length 53 [2022-11-02 21:13:20,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:20,613 INFO L495 AbstractCegarLoop]: Abstraction has 875 states and 1139 transitions. [2022-11-02 21:13:20,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:20,613 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1139 transitions. [2022-11-02 21:13:20,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-02 21:13:20,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:20,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:20,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (79)] Ended with exit code 0 [2022-11-02 21:13:20,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:20,830 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:20,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:20,830 INFO L85 PathProgramCache]: Analyzing trace with hash 882490272, now seen corresponding path program 1 times [2022-11-02 21:13:20,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:20,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552492257] [2022-11-02 21:13:20,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:20,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:20,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:20,831 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:20,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (80)] Waiting until timeout for monitored process [2022-11-02 21:13:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:20,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:13:20,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:21,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:21,003 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:21,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:21,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552492257] [2022-11-02 21:13:21,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552492257] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:21,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:21,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:13:21,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046513281] [2022-11-02 21:13:21,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:21,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:13:21,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:21,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:13:21,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:13:21,004 INFO L87 Difference]: Start difference. First operand 875 states and 1139 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:21,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:21,125 INFO L93 Difference]: Finished difference Result 896 states and 1162 transitions. [2022-11-02 21:13:21,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:13:21,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2022-11-02 21:13:21,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:21,127 INFO L225 Difference]: With dead ends: 896 [2022-11-02 21:13:21,127 INFO L226 Difference]: Without dead ends: 896 [2022-11-02 21:13:21,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:13:21,127 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 39 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2423 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:21,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2423 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:21,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2022-11-02 21:13:21,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 877. [2022-11-02 21:13:21,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 740 states have (on average 1.2824324324324323) internal successors, (949), 757 states have internal predecessors, (949), 81 states have call successors, (81), 40 states have call predecessors, (81), 55 states have return successors, (111), 79 states have call predecessors, (111), 76 states have call successors, (111) [2022-11-02 21:13:21,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1141 transitions. [2022-11-02 21:13:21,142 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1141 transitions. Word has length 53 [2022-11-02 21:13:21,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:21,142 INFO L495 AbstractCegarLoop]: Abstraction has 877 states and 1141 transitions. [2022-11-02 21:13:21,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:21,142 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1141 transitions. [2022-11-02 21:13:21,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-02 21:13:21,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:21,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:21,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (80)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:21,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:21,356 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:21,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:21,357 INFO L85 PathProgramCache]: Analyzing trace with hash 748476766, now seen corresponding path program 1 times [2022-11-02 21:13:21,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:21,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1001533228] [2022-11-02 21:13:21,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:21,357 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:21,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:21,358 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:21,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2022-11-02 21:13:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:21,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:13:21,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:21,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:21,588 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:21,588 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:21,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1001533228] [2022-11-02 21:13:21,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1001533228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:21,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:21,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:13:21,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461905121] [2022-11-02 21:13:21,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:21,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:13:21,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:21,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:13:21,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:13:21,590 INFO L87 Difference]: Start difference. First operand 877 states and 1141 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:21,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:21,823 INFO L93 Difference]: Finished difference Result 895 states and 1160 transitions. [2022-11-02 21:13:21,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:13:21,824 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2022-11-02 21:13:21,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:21,825 INFO L225 Difference]: With dead ends: 895 [2022-11-02 21:13:21,826 INFO L226 Difference]: Without dead ends: 869 [2022-11-02 21:13:21,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:13:21,826 INFO L413 NwaCegarLoop]: 499 mSDtfsCounter, 60 mSDsluCounter, 3359 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:21,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3858 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:21,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2022-11-02 21:13:21,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 869. [2022-11-02 21:13:21,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 733 states have (on average 1.2824010914051842) internal successors, (940), 750 states have internal predecessors, (940), 80 states have call successors, (80), 40 states have call predecessors, (80), 55 states have return successors, (110), 78 states have call predecessors, (110), 75 states have call successors, (110) [2022-11-02 21:13:21,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1130 transitions. [2022-11-02 21:13:21,839 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1130 transitions. Word has length 53 [2022-11-02 21:13:21,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:21,839 INFO L495 AbstractCegarLoop]: Abstraction has 869 states and 1130 transitions. [2022-11-02 21:13:21,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:21,840 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1130 transitions. [2022-11-02 21:13:21,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-02 21:13:21,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:21,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:21,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (81)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:22,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:22,042 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:22,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:22,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1994228703, now seen corresponding path program 1 times [2022-11-02 21:13:22,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:22,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019919433] [2022-11-02 21:13:22,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:22,043 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:22,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:22,044 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:22,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2022-11-02 21:13:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:22,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:13:22,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:22,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:22,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:22,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:22,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019919433] [2022-11-02 21:13:22,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019919433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:22,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:22,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:13:22,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053089867] [2022-11-02 21:13:22,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:22,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:13:22,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:22,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:13:22,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:13:22,244 INFO L87 Difference]: Start difference. First operand 869 states and 1130 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:22,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:22,384 INFO L93 Difference]: Finished difference Result 878 states and 1134 transitions. [2022-11-02 21:13:22,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:13:22,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2022-11-02 21:13:22,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:22,387 INFO L225 Difference]: With dead ends: 878 [2022-11-02 21:13:22,387 INFO L226 Difference]: Without dead ends: 878 [2022-11-02 21:13:22,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:13:22,388 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 39 mSDsluCounter, 1837 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:22,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2315 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:22,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2022-11-02 21:13:22,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 862. [2022-11-02 21:13:22,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 728 states have (on average 1.2788461538461537) internal successors, (931), 745 states have internal predecessors, (931), 78 states have call successors, (78), 40 states have call predecessors, (78), 55 states have return successors, (108), 76 states have call predecessors, (108), 73 states have call successors, (108) [2022-11-02 21:13:22,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1117 transitions. [2022-11-02 21:13:22,404 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1117 transitions. Word has length 53 [2022-11-02 21:13:22,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:22,405 INFO L495 AbstractCegarLoop]: Abstraction has 862 states and 1117 transitions. [2022-11-02 21:13:22,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:22,405 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1117 transitions. [2022-11-02 21:13:22,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-02 21:13:22,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:22,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:22,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (82)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:22,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:22,621 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:22,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:22,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1860215197, now seen corresponding path program 1 times [2022-11-02 21:13:22,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:22,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [384931] [2022-11-02 21:13:22,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:22,622 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:22,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:22,623 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:22,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2022-11-02 21:13:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:22,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:13:22,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:22,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:22,883 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:22,883 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:22,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [384931] [2022-11-02 21:13:22,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [384931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:22,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:22,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:13:22,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943115002] [2022-11-02 21:13:22,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:22,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:13:22,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:22,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:13:22,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:13:22,885 INFO L87 Difference]: Start difference. First operand 862 states and 1117 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:23,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:23,086 INFO L93 Difference]: Finished difference Result 877 states and 1132 transitions. [2022-11-02 21:13:23,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:13:23,087 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2022-11-02 21:13:23,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:23,089 INFO L225 Difference]: With dead ends: 877 [2022-11-02 21:13:23,089 INFO L226 Difference]: Without dead ends: 852 [2022-11-02 21:13:23,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:13:23,089 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 60 mSDsluCounter, 3192 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3665 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:23,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3665 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:23,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2022-11-02 21:13:23,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 852. [2022-11-02 21:13:23,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 720 states have (on average 1.2791666666666666) internal successors, (921), 737 states have internal predecessors, (921), 76 states have call successors, (76), 40 states have call predecessors, (76), 55 states have return successors, (105), 74 states have call predecessors, (105), 71 states have call successors, (105) [2022-11-02 21:13:23,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1102 transitions. [2022-11-02 21:13:23,103 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1102 transitions. Word has length 53 [2022-11-02 21:13:23,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:23,103 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 1102 transitions. [2022-11-02 21:13:23,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:23,103 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1102 transitions. [2022-11-02 21:13:23,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-02 21:13:23,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:23,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:23,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (83)] Ended with exit code 0 [2022-11-02 21:13:23,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:23,306 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:23,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:23,306 INFO L85 PathProgramCache]: Analyzing trace with hash 953754427, now seen corresponding path program 1 times [2022-11-02 21:13:23,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:23,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470903774] [2022-11-02 21:13:23,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:23,307 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:23,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:23,307 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:23,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (84)] Waiting until timeout for monitored process [2022-11-02 21:13:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:23,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:13:23,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:23,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:23,667 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:23,667 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:23,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470903774] [2022-11-02 21:13:23,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470903774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:23,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:23,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:13:23,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111058647] [2022-11-02 21:13:23,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:23,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:13:23,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:23,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:13:23,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:13:23,670 INFO L87 Difference]: Start difference. First operand 852 states and 1102 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:23,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:23,963 INFO L93 Difference]: Finished difference Result 861 states and 1109 transitions. [2022-11-02 21:13:23,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:13:23,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 53 [2022-11-02 21:13:23,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:23,965 INFO L225 Difference]: With dead ends: 861 [2022-11-02 21:13:23,966 INFO L226 Difference]: Without dead ends: 861 [2022-11-02 21:13:23,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:13:23,966 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 460 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:23,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 787 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:13:23,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2022-11-02 21:13:23,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 852. [2022-11-02 21:13:23,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 720 states have (on average 1.2763888888888888) internal successors, (919), 737 states have internal predecessors, (919), 76 states have call successors, (76), 40 states have call predecessors, (76), 55 states have return successors, (105), 74 states have call predecessors, (105), 71 states have call successors, (105) [2022-11-02 21:13:23,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1100 transitions. [2022-11-02 21:13:23,980 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1100 transitions. Word has length 53 [2022-11-02 21:13:23,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:23,980 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 1100 transitions. [2022-11-02 21:13:23,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:23,981 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1100 transitions. [2022-11-02 21:13:23,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-02 21:13:23,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:23,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:23,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (84)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:24,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:24,195 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:24,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:24,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1335081080, now seen corresponding path program 1 times [2022-11-02 21:13:24,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:24,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785821237] [2022-11-02 21:13:24,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:24,196 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:24,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:24,197 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:24,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2022-11-02 21:13:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:24,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:24,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:24,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:24,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:24,483 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:24,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785821237] [2022-11-02 21:13:24,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785821237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:24,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:24,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:24,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869607524] [2022-11-02 21:13:24,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:24,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:24,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:24,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:24,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:24,485 INFO L87 Difference]: Start difference. First operand 852 states and 1100 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-02 21:13:24,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:24,797 INFO L93 Difference]: Finished difference Result 866 states and 1112 transitions. [2022-11-02 21:13:24,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:24,798 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 59 [2022-11-02 21:13:24,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:24,799 INFO L225 Difference]: With dead ends: 866 [2022-11-02 21:13:24,799 INFO L226 Difference]: Without dead ends: 842 [2022-11-02 21:13:24,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:13:24,800 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 62 mSDsluCounter, 4393 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4846 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:24,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 4846 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:24,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2022-11-02 21:13:24,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 842. [2022-11-02 21:13:24,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 712 states have (on average 1.2752808988764044) internal successors, (908), 730 states have internal predecessors, (908), 74 states have call successors, (74), 40 states have call predecessors, (74), 55 states have return successors, (100), 71 states have call predecessors, (100), 69 states have call successors, (100) [2022-11-02 21:13:24,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1082 transitions. [2022-11-02 21:13:24,819 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1082 transitions. Word has length 59 [2022-11-02 21:13:24,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:24,819 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1082 transitions. [2022-11-02 21:13:24,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-02 21:13:24,819 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1082 transitions. [2022-11-02 21:13:24,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-02 21:13:24,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:24,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:24,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (85)] Ended with exit code 0 [2022-11-02 21:13:25,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:25,033 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:25,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:25,034 INFO L85 PathProgramCache]: Analyzing trace with hash -507761203, now seen corresponding path program 1 times [2022-11-02 21:13:25,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:25,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2530484] [2022-11-02 21:13:25,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:25,034 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:25,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:25,036 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:25,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (86)] Waiting until timeout for monitored process [2022-11-02 21:13:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:25,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:13:25,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:25,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:25,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:25,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:25,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2530484] [2022-11-02 21:13:25,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2530484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:25,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:25,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:13:25,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88830996] [2022-11-02 21:13:25,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:25,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:13:25,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:25,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:13:25,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:13:25,282 INFO L87 Difference]: Start difference. First operand 842 states and 1082 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:13:25,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:25,490 INFO L93 Difference]: Finished difference Result 859 states and 1100 transitions. [2022-11-02 21:13:25,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:13:25,491 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 55 [2022-11-02 21:13:25,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:25,492 INFO L225 Difference]: With dead ends: 859 [2022-11-02 21:13:25,492 INFO L226 Difference]: Without dead ends: 838 [2022-11-02 21:13:25,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:13:25,493 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 62 mSDsluCounter, 3410 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3842 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:25,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 3842 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:25,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-11-02 21:13:25,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 832. [2022-11-02 21:13:25,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 706 states have (on average 1.273371104815864) internal successors, (899), 722 states have internal predecessors, (899), 72 states have call successors, (72), 40 states have call predecessors, (72), 53 states have return successors, (90), 69 states have call predecessors, (90), 67 states have call successors, (90) [2022-11-02 21:13:25,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1061 transitions. [2022-11-02 21:13:25,505 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1061 transitions. Word has length 55 [2022-11-02 21:13:25,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:25,506 INFO L495 AbstractCegarLoop]: Abstraction has 832 states and 1061 transitions. [2022-11-02 21:13:25,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:13:25,506 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1061 transitions. [2022-11-02 21:13:25,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-02 21:13:25,508 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:25,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:25,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (86)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:25,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:25,720 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:25,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:25,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1347488490, now seen corresponding path program 1 times [2022-11-02 21:13:25,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:25,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833176908] [2022-11-02 21:13:25,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:25,721 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:25,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:25,722 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:25,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2022-11-02 21:13:25,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:25,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:25,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:25,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:25,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:25,991 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:25,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833176908] [2022-11-02 21:13:25,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1833176908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:25,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:25,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:25,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149037012] [2022-11-02 21:13:25,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:25,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:25,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:25,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:25,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:25,993 INFO L87 Difference]: Start difference. First operand 832 states and 1061 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:13:26,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:26,294 INFO L93 Difference]: Finished difference Result 849 states and 1079 transitions. [2022-11-02 21:13:26,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:26,295 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 55 [2022-11-02 21:13:26,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:26,297 INFO L225 Difference]: With dead ends: 849 [2022-11-02 21:13:26,297 INFO L226 Difference]: Without dead ends: 829 [2022-11-02 21:13:26,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:13:26,297 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 62 mSDsluCounter, 4276 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4717 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:26,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 4717 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:26,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2022-11-02 21:13:26,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 829. [2022-11-02 21:13:26,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 704 states have (on average 1.2713068181818181) internal successors, (895), 720 states have internal predecessors, (895), 71 states have call successors, (71), 40 states have call predecessors, (71), 53 states have return successors, (89), 68 states have call predecessors, (89), 66 states have call successors, (89) [2022-11-02 21:13:26,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1055 transitions. [2022-11-02 21:13:26,309 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1055 transitions. Word has length 55 [2022-11-02 21:13:26,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:26,309 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1055 transitions. [2022-11-02 21:13:26,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:13:26,309 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1055 transitions. [2022-11-02 21:13:26,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-02 21:13:26,311 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:26,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:26,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (87)] Ended with exit code 0 [2022-11-02 21:13:26,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:26,524 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:26,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:26,524 INFO L85 PathProgramCache]: Analyzing trace with hash 2057071680, now seen corresponding path program 1 times [2022-11-02 21:13:26,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:26,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515036833] [2022-11-02 21:13:26,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:26,524 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:26,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:26,525 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:26,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (88)] Waiting until timeout for monitored process [2022-11-02 21:13:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:26,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:13:26,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:26,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:26,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:26,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:26,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515036833] [2022-11-02 21:13:26,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515036833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:26,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:26,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:13:26,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057298460] [2022-11-02 21:13:26,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:26,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:13:26,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:26,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:13:26,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:13:26,696 INFO L87 Difference]: Start difference. First operand 829 states and 1055 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:26,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:26,772 INFO L93 Difference]: Finished difference Result 850 states and 1078 transitions. [2022-11-02 21:13:26,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:13:26,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2022-11-02 21:13:26,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:26,775 INFO L225 Difference]: With dead ends: 850 [2022-11-02 21:13:26,775 INFO L226 Difference]: Without dead ends: 850 [2022-11-02 21:13:26,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:13:26,775 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 22 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:26,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1735 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:26,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2022-11-02 21:13:26,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 829. [2022-11-02 21:13:26,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 704 states have (on average 1.2698863636363635) internal successors, (894), 720 states have internal predecessors, (894), 71 states have call successors, (71), 40 states have call predecessors, (71), 53 states have return successors, (89), 68 states have call predecessors, (89), 66 states have call successors, (89) [2022-11-02 21:13:26,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1054 transitions. [2022-11-02 21:13:26,788 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1054 transitions. Word has length 54 [2022-11-02 21:13:26,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:26,788 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1054 transitions. [2022-11-02 21:13:26,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:26,788 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1054 transitions. [2022-11-02 21:13:26,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-02 21:13:26,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:26,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:26,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (88)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:27,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:27,002 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:27,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:27,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2119111294, now seen corresponding path program 1 times [2022-11-02 21:13:27,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:27,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262134873] [2022-11-02 21:13:27,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:27,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:27,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:27,004 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:27,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (89)] Waiting until timeout for monitored process [2022-11-02 21:13:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:27,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:13:27,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:27,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:27,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:27,171 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:27,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262134873] [2022-11-02 21:13:27,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262134873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:27,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:27,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:13:27,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232847824] [2022-11-02 21:13:27,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:27,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:13:27,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:27,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:13:27,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:13:27,173 INFO L87 Difference]: Start difference. First operand 829 states and 1054 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:27,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:27,265 INFO L93 Difference]: Finished difference Result 850 states and 1077 transitions. [2022-11-02 21:13:27,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:13:27,265 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2022-11-02 21:13:27,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:27,267 INFO L225 Difference]: With dead ends: 850 [2022-11-02 21:13:27,267 INFO L226 Difference]: Without dead ends: 850 [2022-11-02 21:13:27,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:13:27,268 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 39 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:27,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2153 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:27,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2022-11-02 21:13:27,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 831. [2022-11-02 21:13:27,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 706 states have (on average 1.2691218130311614) internal successors, (896), 722 states have internal predecessors, (896), 71 states have call successors, (71), 40 states have call predecessors, (71), 53 states have return successors, (89), 68 states have call predecessors, (89), 66 states have call successors, (89) [2022-11-02 21:13:27,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1056 transitions. [2022-11-02 21:13:27,281 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1056 transitions. Word has length 54 [2022-11-02 21:13:27,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:27,281 INFO L495 AbstractCegarLoop]: Abstraction has 831 states and 1056 transitions. [2022-11-02 21:13:27,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:27,281 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1056 transitions. [2022-11-02 21:13:27,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-02 21:13:27,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:27,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:27,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (89)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:27,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:27,497 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:27,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:27,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1985097788, now seen corresponding path program 1 times [2022-11-02 21:13:27,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:27,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454931818] [2022-11-02 21:13:27,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:27,498 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:27,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:27,498 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:27,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (90)] Waiting until timeout for monitored process [2022-11-02 21:13:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:27,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:13:27,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:27,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:27,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:27,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:27,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [454931818] [2022-11-02 21:13:27,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [454931818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:27,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:27,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:13:27,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544942394] [2022-11-02 21:13:27,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:27,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:13:27,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:27,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:13:27,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:13:27,740 INFO L87 Difference]: Start difference. First operand 831 states and 1056 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:27,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:27,914 INFO L93 Difference]: Finished difference Result 849 states and 1075 transitions. [2022-11-02 21:13:27,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:13:27,914 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2022-11-02 21:13:27,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:27,915 INFO L225 Difference]: With dead ends: 849 [2022-11-02 21:13:27,915 INFO L226 Difference]: Without dead ends: 824 [2022-11-02 21:13:27,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:13:27,916 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 60 mSDsluCounter, 2967 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3407 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:27,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3407 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:27,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2022-11-02 21:13:27,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 824. [2022-11-02 21:13:27,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 700 states have (on average 1.2685714285714285) internal successors, (888), 716 states have internal predecessors, (888), 70 states have call successors, (70), 40 states have call predecessors, (70), 53 states have return successors, (88), 67 states have call predecessors, (88), 65 states have call successors, (88) [2022-11-02 21:13:27,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1046 transitions. [2022-11-02 21:13:27,928 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1046 transitions. Word has length 54 [2022-11-02 21:13:27,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:27,929 INFO L495 AbstractCegarLoop]: Abstraction has 824 states and 1046 transitions. [2022-11-02 21:13:27,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:27,929 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1046 transitions. [2022-11-02 21:13:27,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-02 21:13:27,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:27,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:27,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (90)] Ended with exit code 0 [2022-11-02 21:13:28,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:28,143 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:28,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:28,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1301879028, now seen corresponding path program 1 times [2022-11-02 21:13:28,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:28,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496536417] [2022-11-02 21:13:28,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:28,144 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:28,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:28,145 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:28,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (91)] Waiting until timeout for monitored process [2022-11-02 21:13:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:28,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:13:28,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:28,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:28,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:28,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:28,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496536417] [2022-11-02 21:13:28,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496536417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:28,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:28,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:13:28,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631259057] [2022-11-02 21:13:28,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:28,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:13:28,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:28,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:13:28,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:13:28,318 INFO L87 Difference]: Start difference. First operand 824 states and 1046 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:28,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:28,400 INFO L93 Difference]: Finished difference Result 845 states and 1069 transitions. [2022-11-02 21:13:28,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:13:28,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2022-11-02 21:13:28,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:28,402 INFO L225 Difference]: With dead ends: 845 [2022-11-02 21:13:28,402 INFO L226 Difference]: Without dead ends: 845 [2022-11-02 21:13:28,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:13:28,403 INFO L413 NwaCegarLoop]: 439 mSDtfsCounter, 39 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:28,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2125 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:28,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2022-11-02 21:13:28,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 826. [2022-11-02 21:13:28,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 702 states have (on average 1.2678062678062678) internal successors, (890), 718 states have internal predecessors, (890), 70 states have call successors, (70), 40 states have call predecessors, (70), 53 states have return successors, (88), 67 states have call predecessors, (88), 65 states have call successors, (88) [2022-11-02 21:13:28,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1048 transitions. [2022-11-02 21:13:28,411 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1048 transitions. Word has length 54 [2022-11-02 21:13:28,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:28,411 INFO L495 AbstractCegarLoop]: Abstraction has 826 states and 1048 transitions. [2022-11-02 21:13:28,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:28,412 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1048 transitions. [2022-11-02 21:13:28,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-02 21:13:28,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:28,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:28,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (91)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:28,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:28,626 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:28,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:28,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1435892534, now seen corresponding path program 1 times [2022-11-02 21:13:28,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:28,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263484063] [2022-11-02 21:13:28,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:28,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:28,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:28,628 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:28,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (92)] Waiting until timeout for monitored process [2022-11-02 21:13:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:28,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:13:28,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:28,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:28,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:28,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:28,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1263484063] [2022-11-02 21:13:28,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1263484063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:28,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:28,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:13:28,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581336147] [2022-11-02 21:13:28,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:28,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:13:28,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:28,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:13:28,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:13:28,848 INFO L87 Difference]: Start difference. First operand 826 states and 1048 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:29,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:29,037 INFO L93 Difference]: Finished difference Result 844 states and 1067 transitions. [2022-11-02 21:13:29,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:13:29,038 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2022-11-02 21:13:29,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:29,040 INFO L225 Difference]: With dead ends: 844 [2022-11-02 21:13:29,040 INFO L226 Difference]: Without dead ends: 821 [2022-11-02 21:13:29,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:13:29,041 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 60 mSDsluCounter, 2927 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3361 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:29,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3361 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:29,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2022-11-02 21:13:29,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 821. [2022-11-02 21:13:29,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 698 states have (on average 1.2664756446991403) internal successors, (884), 714 states have internal predecessors, (884), 69 states have call successors, (69), 40 states have call predecessors, (69), 53 states have return successors, (87), 66 states have call predecessors, (87), 64 states have call successors, (87) [2022-11-02 21:13:29,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1040 transitions. [2022-11-02 21:13:29,055 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1040 transitions. Word has length 54 [2022-11-02 21:13:29,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:29,056 INFO L495 AbstractCegarLoop]: Abstraction has 821 states and 1040 transitions. [2022-11-02 21:13:29,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:29,056 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1040 transitions. [2022-11-02 21:13:29,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-02 21:13:29,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:29,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:29,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (92)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:29,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:29,274 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:29,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:29,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1137798806, now seen corresponding path program 1 times [2022-11-02 21:13:29,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:29,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466704194] [2022-11-02 21:13:29,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:29,275 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:29,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:29,276 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:29,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (93)] Waiting until timeout for monitored process [2022-11-02 21:13:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:29,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 21:13:29,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:29,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:29,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:29,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:29,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466704194] [2022-11-02 21:13:29,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [466704194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:29,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:29,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:13:29,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609301894] [2022-11-02 21:13:29,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:29,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:13:29,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:29,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:13:29,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:13:29,596 INFO L87 Difference]: Start difference. First operand 821 states and 1040 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:29,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:29,852 INFO L93 Difference]: Finished difference Result 901 states and 1131 transitions. [2022-11-02 21:13:29,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:13:29,853 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2022-11-02 21:13:29,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:29,855 INFO L225 Difference]: With dead ends: 901 [2022-11-02 21:13:29,855 INFO L226 Difference]: Without dead ends: 850 [2022-11-02 21:13:29,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:13:29,856 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 95 mSDsluCounter, 2777 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 3184 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:29,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 3184 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:29,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2022-11-02 21:13:29,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 831. [2022-11-02 21:13:29,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 707 states have (on average 1.2531824611032532) internal successors, (886), 723 states have internal predecessors, (886), 69 states have call successors, (69), 40 states have call predecessors, (69), 54 states have return successors, (88), 67 states have call predecessors, (88), 64 states have call successors, (88) [2022-11-02 21:13:29,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1043 transitions. [2022-11-02 21:13:29,869 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1043 transitions. Word has length 54 [2022-11-02 21:13:29,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:29,869 INFO L495 AbstractCegarLoop]: Abstraction has 831 states and 1043 transitions. [2022-11-02 21:13:29,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:29,869 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1043 transitions. [2022-11-02 21:13:29,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-02 21:13:29,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:29,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:29,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (93)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:30,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:30,084 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:30,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:30,084 INFO L85 PathProgramCache]: Analyzing trace with hash 169253140, now seen corresponding path program 1 times [2022-11-02 21:13:30,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:30,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513392454] [2022-11-02 21:13:30,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:30,085 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:30,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:30,087 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:30,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (94)] Waiting until timeout for monitored process [2022-11-02 21:13:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:30,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:13:30,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:30,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:30,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:30,330 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:30,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [513392454] [2022-11-02 21:13:30,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [513392454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:30,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:30,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:13:30,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611662750] [2022-11-02 21:13:30,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:30,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:13:30,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:30,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:13:30,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:13:30,332 INFO L87 Difference]: Start difference. First operand 831 states and 1043 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:13:30,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:30,396 INFO L93 Difference]: Finished difference Result 849 states and 1062 transitions. [2022-11-02 21:13:30,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:13:30,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2022-11-02 21:13:30,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:30,398 INFO L225 Difference]: With dead ends: 849 [2022-11-02 21:13:30,398 INFO L226 Difference]: Without dead ends: 849 [2022-11-02 21:13:30,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:13:30,398 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 18 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:30,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 1678 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:30,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-11-02 21:13:30,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 831. [2022-11-02 21:13:30,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 707 states have (on average 1.2517680339462518) internal successors, (885), 723 states have internal predecessors, (885), 69 states have call successors, (69), 40 states have call predecessors, (69), 54 states have return successors, (88), 67 states have call predecessors, (88), 64 states have call successors, (88) [2022-11-02 21:13:30,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1042 transitions. [2022-11-02 21:13:30,410 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1042 transitions. Word has length 56 [2022-11-02 21:13:30,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:30,411 INFO L495 AbstractCegarLoop]: Abstraction has 831 states and 1042 transitions. [2022-11-02 21:13:30,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:13:30,411 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1042 transitions. [2022-11-02 21:13:30,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-02 21:13:30,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:30,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:30,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (94)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:30,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:30,626 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:30,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:30,626 INFO L85 PathProgramCache]: Analyzing trace with hash 191885394, now seen corresponding path program 1 times [2022-11-02 21:13:30,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:30,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181214828] [2022-11-02 21:13:30,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:30,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:30,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:30,628 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:30,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (95)] Waiting until timeout for monitored process [2022-11-02 21:13:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:30,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:30,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:30,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:30,915 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:30,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:30,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181214828] [2022-11-02 21:13:30,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181214828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:30,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:30,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:30,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231980916] [2022-11-02 21:13:30,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:30,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:30,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:30,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:30,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:30,917 INFO L87 Difference]: Start difference. First operand 831 states and 1042 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:13:31,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:31,204 INFO L93 Difference]: Finished difference Result 848 states and 1060 transitions. [2022-11-02 21:13:31,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:31,204 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 56 [2022-11-02 21:13:31,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:31,206 INFO L225 Difference]: With dead ends: 848 [2022-11-02 21:13:31,206 INFO L226 Difference]: Without dead ends: 824 [2022-11-02 21:13:31,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:13:31,207 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 62 mSDsluCounter, 4068 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4487 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:31,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 4487 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:31,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2022-11-02 21:13:31,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 824. [2022-11-02 21:13:31,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 701 states have (on average 1.2510699001426533) internal successors, (877), 717 states have internal predecessors, (877), 68 states have call successors, (68), 40 states have call predecessors, (68), 54 states have return successors, (86), 66 states have call predecessors, (86), 63 states have call successors, (86) [2022-11-02 21:13:31,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1031 transitions. [2022-11-02 21:13:31,218 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1031 transitions. Word has length 56 [2022-11-02 21:13:31,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:31,219 INFO L495 AbstractCegarLoop]: Abstraction has 824 states and 1031 transitions. [2022-11-02 21:13:31,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:13:31,219 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1031 transitions. [2022-11-02 21:13:31,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-02 21:13:31,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:31,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:31,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (95)] Ended with exit code 0 [2022-11-02 21:13:31,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:31,435 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:31,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:31,436 INFO L85 PathProgramCache]: Analyzing trace with hash -2005785928, now seen corresponding path program 1 times [2022-11-02 21:13:31,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:31,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422713491] [2022-11-02 21:13:31,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:31,437 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:31,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:31,438 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:31,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (96)] Waiting until timeout for monitored process [2022-11-02 21:13:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:31,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:31,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:31,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:31,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:31,753 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:31,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422713491] [2022-11-02 21:13:31,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422713491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:31,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:31,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:31,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706269850] [2022-11-02 21:13:31,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:31,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:31,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:31,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:31,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:31,755 INFO L87 Difference]: Start difference. First operand 824 states and 1031 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:13:32,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:32,018 INFO L93 Difference]: Finished difference Result 841 states and 1048 transitions. [2022-11-02 21:13:32,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:32,019 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 56 [2022-11-02 21:13:32,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:32,021 INFO L225 Difference]: With dead ends: 841 [2022-11-02 21:13:32,021 INFO L226 Difference]: Without dead ends: 819 [2022-11-02 21:13:32,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:13:32,022 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 62 mSDsluCounter, 3986 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4397 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:32,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 4397 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:32,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2022-11-02 21:13:32,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 819. [2022-11-02 21:13:32,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 697 states have (on average 1.248206599713056) internal successors, (870), 713 states have internal predecessors, (870), 67 states have call successors, (67), 40 states have call predecessors, (67), 54 states have return successors, (85), 65 states have call predecessors, (85), 62 states have call successors, (85) [2022-11-02 21:13:32,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1022 transitions. [2022-11-02 21:13:32,035 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1022 transitions. Word has length 56 [2022-11-02 21:13:32,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:32,036 INFO L495 AbstractCegarLoop]: Abstraction has 819 states and 1022 transitions. [2022-11-02 21:13:32,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:13:32,036 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1022 transitions. [2022-11-02 21:13:32,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-02 21:13:32,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:32,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:32,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (96)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:32,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:32,252 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:32,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:32,252 INFO L85 PathProgramCache]: Analyzing trace with hash -470261491, now seen corresponding path program 1 times [2022-11-02 21:13:32,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:32,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074359529] [2022-11-02 21:13:32,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:32,253 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:32,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:32,254 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:32,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (97)] Waiting until timeout for monitored process [2022-11-02 21:13:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:32,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:32,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:32,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:32,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:32,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074359529] [2022-11-02 21:13:32,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074359529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:32,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:32,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:32,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280763092] [2022-11-02 21:13:32,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:32,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:32,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:32,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:32,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:32,595 INFO L87 Difference]: Start difference. First operand 819 states and 1022 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 21:13:32,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:32,862 INFO L93 Difference]: Finished difference Result 842 states and 1045 transitions. [2022-11-02 21:13:32,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:32,863 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 64 [2022-11-02 21:13:32,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:32,865 INFO L225 Difference]: With dead ends: 842 [2022-11-02 21:13:32,865 INFO L226 Difference]: Without dead ends: 818 [2022-11-02 21:13:32,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:13:32,865 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 42 mSDsluCounter, 3883 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 4288 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:32,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 4288 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:32,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2022-11-02 21:13:32,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2022-11-02 21:13:32,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 696 states have (on average 1.2456896551724137) internal successors, (867), 712 states have internal predecessors, (867), 67 states have call successors, (67), 40 states have call predecessors, (67), 54 states have return successors, (85), 65 states have call predecessors, (85), 62 states have call successors, (85) [2022-11-02 21:13:32,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1019 transitions. [2022-11-02 21:13:32,873 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1019 transitions. Word has length 64 [2022-11-02 21:13:32,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:32,873 INFO L495 AbstractCegarLoop]: Abstraction has 818 states and 1019 transitions. [2022-11-02 21:13:32,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 21:13:32,874 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1019 transitions. [2022-11-02 21:13:32,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-02 21:13:32,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:32,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:32,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (97)] Ended with exit code 0 [2022-11-02 21:13:33,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:33,076 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:33,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:33,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1622755266, now seen corresponding path program 1 times [2022-11-02 21:13:33,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:33,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474792009] [2022-11-02 21:13:33,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:33,076 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:33,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:33,077 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:33,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (98)] Waiting until timeout for monitored process [2022-11-02 21:13:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:33,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:13:33,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:33,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:33,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:33,235 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:33,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474792009] [2022-11-02 21:13:33,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474792009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:33,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:33,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:13:33,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297408740] [2022-11-02 21:13:33,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:33,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:13:33,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:33,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:13:33,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:13:33,237 INFO L87 Difference]: Start difference. First operand 818 states and 1019 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-02 21:13:33,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:33,247 INFO L93 Difference]: Finished difference Result 758 states and 928 transitions. [2022-11-02 21:13:33,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:13:33,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 59 [2022-11-02 21:13:33,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:33,249 INFO L225 Difference]: With dead ends: 758 [2022-11-02 21:13:33,249 INFO L226 Difference]: Without dead ends: 758 [2022-11-02 21:13:33,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:13:33,250 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 1 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:33,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 783 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:13:33,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2022-11-02 21:13:33,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 758. [2022-11-02 21:13:33,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 648 states have (on average 1.2237654320987654) internal successors, (793), 663 states have internal predecessors, (793), 60 states have call successors, (60), 35 states have call predecessors, (60), 49 states have return successors, (75), 59 states have call predecessors, (75), 56 states have call successors, (75) [2022-11-02 21:13:33,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 928 transitions. [2022-11-02 21:13:33,266 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 928 transitions. Word has length 59 [2022-11-02 21:13:33,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:33,267 INFO L495 AbstractCegarLoop]: Abstraction has 758 states and 928 transitions. [2022-11-02 21:13:33,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-02 21:13:33,267 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 928 transitions. [2022-11-02 21:13:33,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-02 21:13:33,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:33,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:33,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (98)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:33,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:33,470 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:33,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:33,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1080746315, now seen corresponding path program 1 times [2022-11-02 21:13:33,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:33,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385490158] [2022-11-02 21:13:33,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:33,471 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:33,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:33,472 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:33,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (99)] Waiting until timeout for monitored process [2022-11-02 21:13:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:33,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:33,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:33,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:33,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:33,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:33,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385490158] [2022-11-02 21:13:33,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385490158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:33,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:33,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:33,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880902506] [2022-11-02 21:13:33,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:33,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:33,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:33,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:33,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:33,754 INFO L87 Difference]: Start difference. First operand 758 states and 928 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-02 21:13:34,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:34,050 INFO L93 Difference]: Finished difference Result 790 states and 960 transitions. [2022-11-02 21:13:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:34,051 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 62 [2022-11-02 21:13:34,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:34,052 INFO L225 Difference]: With dead ends: 790 [2022-11-02 21:13:34,053 INFO L226 Difference]: Without dead ends: 773 [2022-11-02 21:13:34,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:13:34,053 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 85 mSDsluCounter, 3891 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 4288 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:34,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 4288 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:34,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-11-02 21:13:34,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 755. [2022-11-02 21:13:34,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 646 states have (on average 1.2198142414860682) internal successors, (788), 661 states have internal predecessors, (788), 59 states have call successors, (59), 35 states have call predecessors, (59), 49 states have return successors, (74), 58 states have call predecessors, (74), 55 states have call successors, (74) [2022-11-02 21:13:34,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 921 transitions. [2022-11-02 21:13:34,061 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 921 transitions. Word has length 62 [2022-11-02 21:13:34,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:34,061 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 921 transitions. [2022-11-02 21:13:34,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-02 21:13:34,062 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 921 transitions. [2022-11-02 21:13:34,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-02 21:13:34,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:34,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:34,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (99)] Ended with exit code 0 [2022-11-02 21:13:34,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:34,263 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:34,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:34,263 INFO L85 PathProgramCache]: Analyzing trace with hash -233501783, now seen corresponding path program 1 times [2022-11-02 21:13:34,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:34,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1331231230] [2022-11-02 21:13:34,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:34,264 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:34,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:34,265 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:34,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (100)] Waiting until timeout for monitored process [2022-11-02 21:13:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:34,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:34,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:34,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:34,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:34,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:34,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1331231230] [2022-11-02 21:13:34,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1331231230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:34,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:34,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:34,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736499058] [2022-11-02 21:13:34,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:34,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:34,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:34,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:34,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:34,568 INFO L87 Difference]: Start difference. First operand 755 states and 921 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:13:34,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:34,813 INFO L93 Difference]: Finished difference Result 771 states and 936 transitions. [2022-11-02 21:13:34,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:34,814 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 57 [2022-11-02 21:13:34,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:34,815 INFO L225 Difference]: With dead ends: 771 [2022-11-02 21:13:34,815 INFO L226 Difference]: Without dead ends: 745 [2022-11-02 21:13:34,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:13:34,816 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 62 mSDsluCounter, 3799 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4190 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:34,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 4190 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:34,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2022-11-02 21:13:34,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 745. [2022-11-02 21:13:34,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 637 states have (on average 1.2119309262166404) internal successors, (772), 652 states have internal predecessors, (772), 58 states have call successors, (58), 35 states have call predecessors, (58), 49 states have return successors, (73), 57 states have call predecessors, (73), 54 states have call successors, (73) [2022-11-02 21:13:34,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 903 transitions. [2022-11-02 21:13:34,824 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 903 transitions. Word has length 57 [2022-11-02 21:13:34,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:34,824 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 903 transitions. [2022-11-02 21:13:34,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-02 21:13:34,825 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 903 transitions. [2022-11-02 21:13:34,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-02 21:13:34,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:34,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:34,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (100)] Ended with exit code 0 [2022-11-02 21:13:35,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:35,026 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:35,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:35,027 INFO L85 PathProgramCache]: Analyzing trace with hash 704396185, now seen corresponding path program 1 times [2022-11-02 21:13:35,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:35,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902471716] [2022-11-02 21:13:35,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:35,027 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:35,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:35,028 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:35,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (101)] Waiting until timeout for monitored process [2022-11-02 21:13:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:35,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:35,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:35,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:35,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:35,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:35,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902471716] [2022-11-02 21:13:35,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [902471716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:35,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:35,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:35,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605381013] [2022-11-02 21:13:35,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:35,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:35,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:35,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:35,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:35,382 INFO L87 Difference]: Start difference. First operand 745 states and 903 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 21:13:35,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:35,651 INFO L93 Difference]: Finished difference Result 799 states and 957 transitions. [2022-11-02 21:13:35,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:35,651 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 66 [2022-11-02 21:13:35,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:35,653 INFO L225 Difference]: With dead ends: 799 [2022-11-02 21:13:35,653 INFO L226 Difference]: Without dead ends: 775 [2022-11-02 21:13:35,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:13:35,653 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 46 mSDsluCounter, 3247 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 3623 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:35,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 3623 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:35,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2022-11-02 21:13:35,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 735. [2022-11-02 21:13:35,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 629 states have (on average 1.2130365659777425) internal successors, (763), 643 states have internal predecessors, (763), 58 states have call successors, (58), 35 states have call predecessors, (58), 47 states have return successors, (71), 56 states have call predecessors, (71), 54 states have call successors, (71) [2022-11-02 21:13:35,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 892 transitions. [2022-11-02 21:13:35,664 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 892 transitions. Word has length 66 [2022-11-02 21:13:35,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:35,665 INFO L495 AbstractCegarLoop]: Abstraction has 735 states and 892 transitions. [2022-11-02 21:13:35,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 21:13:35,665 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 892 transitions. [2022-11-02 21:13:35,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-02 21:13:35,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:35,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:35,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (101)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:35,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:35,874 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:35,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:35,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1477617433, now seen corresponding path program 1 times [2022-11-02 21:13:35,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:35,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61639272] [2022-11-02 21:13:35,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:35,875 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:35,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:35,876 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:35,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (102)] Waiting until timeout for monitored process [2022-11-02 21:13:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:36,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:13:36,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:36,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:36,058 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:36,058 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:36,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61639272] [2022-11-02 21:13:36,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61639272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:36,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:36,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:13:36,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345980611] [2022-11-02 21:13:36,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:36,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:13:36,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:36,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:13:36,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:13:36,060 INFO L87 Difference]: Start difference. First operand 735 states and 892 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:13:36,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:36,147 INFO L93 Difference]: Finished difference Result 772 states and 932 transitions. [2022-11-02 21:13:36,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:13:36,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 57 [2022-11-02 21:13:36,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:36,149 INFO L225 Difference]: With dead ends: 772 [2022-11-02 21:13:36,149 INFO L226 Difference]: Without dead ends: 772 [2022-11-02 21:13:36,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:13:36,150 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 68 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1868 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:36,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1868 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:36,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2022-11-02 21:13:36,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 735. [2022-11-02 21:13:36,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 629 states have (on average 1.2114467408585055) internal successors, (762), 643 states have internal predecessors, (762), 58 states have call successors, (58), 35 states have call predecessors, (58), 47 states have return successors, (71), 56 states have call predecessors, (71), 54 states have call successors, (71) [2022-11-02 21:13:36,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 891 transitions. [2022-11-02 21:13:36,158 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 891 transitions. Word has length 57 [2022-11-02 21:13:36,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:36,158 INFO L495 AbstractCegarLoop]: Abstraction has 735 states and 891 transitions. [2022-11-02 21:13:36,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:13:36,158 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 891 transitions. [2022-11-02 21:13:36,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-02 21:13:36,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:36,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:36,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (102)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:36,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:36,360 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:36,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:36,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1611630939, now seen corresponding path program 1 times [2022-11-02 21:13:36,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:36,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606305250] [2022-11-02 21:13:36,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:36,361 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:36,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:36,362 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:36,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (103)] Waiting until timeout for monitored process [2022-11-02 21:13:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:36,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:13:36,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:36,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:36,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:36,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:36,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606305250] [2022-11-02 21:13:36,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606305250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:36,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:36,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:13:36,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542052486] [2022-11-02 21:13:36,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:36,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:13:36,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:36,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:13:36,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:13:36,608 INFO L87 Difference]: Start difference. First operand 735 states and 891 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:13:36,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:36,785 INFO L93 Difference]: Finished difference Result 755 states and 913 transitions. [2022-11-02 21:13:36,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:13:36,786 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 57 [2022-11-02 21:13:36,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:36,787 INFO L225 Difference]: With dead ends: 755 [2022-11-02 21:13:36,787 INFO L226 Difference]: Without dead ends: 715 [2022-11-02 21:13:36,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:13:36,787 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 73 mSDsluCounter, 2542 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 2921 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:36,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 2921 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:36,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2022-11-02 21:13:36,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2022-11-02 21:13:36,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 613 states have (on average 1.2071778140293639) internal successors, (740), 626 states have internal predecessors, (740), 54 states have call successors, (54), 35 states have call predecessors, (54), 47 states have return successors, (66), 53 states have call predecessors, (66), 50 states have call successors, (66) [2022-11-02 21:13:36,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 860 transitions. [2022-11-02 21:13:36,796 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 860 transitions. Word has length 57 [2022-11-02 21:13:36,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:36,796 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 860 transitions. [2022-11-02 21:13:36,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:13:36,796 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 860 transitions. [2022-11-02 21:13:36,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-02 21:13:36,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:36,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:36,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (103)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:37,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:37,002 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:37,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:37,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1762473366, now seen corresponding path program 1 times [2022-11-02 21:13:37,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:37,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616591696] [2022-11-02 21:13:37,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:37,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:37,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:37,004 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:37,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (104)] Waiting until timeout for monitored process [2022-11-02 21:13:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:37,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:13:37,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:37,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:37,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:37,185 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:37,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616591696] [2022-11-02 21:13:37,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616591696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:37,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:37,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:13:37,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071661248] [2022-11-02 21:13:37,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:37,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:13:37,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:37,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:13:37,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:13:37,187 INFO L87 Difference]: Start difference. First operand 715 states and 860 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:37,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:37,255 INFO L93 Difference]: Finished difference Result 734 states and 879 transitions. [2022-11-02 21:13:37,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:13:37,255 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 56 [2022-11-02 21:13:37,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:37,257 INFO L225 Difference]: With dead ends: 734 [2022-11-02 21:13:37,257 INFO L226 Difference]: Without dead ends: 734 [2022-11-02 21:13:37,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:13:37,257 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 39 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:37,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1709 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:37,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2022-11-02 21:13:37,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 715. [2022-11-02 21:13:37,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 613 states have (on average 1.203915171288744) internal successors, (738), 626 states have internal predecessors, (738), 54 states have call successors, (54), 35 states have call predecessors, (54), 47 states have return successors, (66), 53 states have call predecessors, (66), 50 states have call successors, (66) [2022-11-02 21:13:37,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 858 transitions. [2022-11-02 21:13:37,268 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 858 transitions. Word has length 56 [2022-11-02 21:13:37,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:37,269 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 858 transitions. [2022-11-02 21:13:37,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:37,269 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 858 transitions. [2022-11-02 21:13:37,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-02 21:13:37,270 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:37,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:37,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (104)] Ended with exit code 0 [2022-11-02 21:13:37,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:37,474 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:37,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:37,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1628459860, now seen corresponding path program 1 times [2022-11-02 21:13:37,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:37,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871113934] [2022-11-02 21:13:37,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:37,475 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:37,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:37,476 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:37,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (105)] Waiting until timeout for monitored process [2022-11-02 21:13:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:37,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:13:37,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:37,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:37,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:37,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:37,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871113934] [2022-11-02 21:13:37,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871113934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:37,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:37,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:13:37,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947224731] [2022-11-02 21:13:37,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:37,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:13:37,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:37,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:13:37,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:13:37,739 INFO L87 Difference]: Start difference. First operand 715 states and 858 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:37,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:37,893 INFO L93 Difference]: Finished difference Result 733 states and 877 transitions. [2022-11-02 21:13:37,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:13:37,898 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 56 [2022-11-02 21:13:37,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:37,900 INFO L225 Difference]: With dead ends: 733 [2022-11-02 21:13:37,900 INFO L226 Difference]: Without dead ends: 707 [2022-11-02 21:13:37,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:13:37,901 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 60 mSDsluCounter, 2334 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:37,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 2680 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:37,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-02 21:13:37,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2022-11-02 21:13:37,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 606 states have (on average 1.202970297029703) internal successors, (729), 619 states have internal predecessors, (729), 53 states have call successors, (53), 35 states have call predecessors, (53), 47 states have return successors, (64), 52 states have call predecessors, (64), 49 states have call successors, (64) [2022-11-02 21:13:37,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 846 transitions. [2022-11-02 21:13:37,910 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 846 transitions. Word has length 56 [2022-11-02 21:13:37,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:37,911 INFO L495 AbstractCegarLoop]: Abstraction has 707 states and 846 transitions. [2022-11-02 21:13:37,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-02 21:13:37,911 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 846 transitions. [2022-11-02 21:13:37,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-02 21:13:37,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:37,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:37,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (105)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:38,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:38,125 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:38,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:38,125 INFO L85 PathProgramCache]: Analyzing trace with hash 474047414, now seen corresponding path program 1 times [2022-11-02 21:13:38,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:38,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989716523] [2022-11-02 21:13:38,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:38,126 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:38,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:38,127 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:38,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (106)] Waiting until timeout for monitored process [2022-11-02 21:13:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:38,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 21:13:38,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:38,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:38,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:38,391 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:38,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1989716523] [2022-11-02 21:13:38,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1989716523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:38,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:38,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:13:38,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033943803] [2022-11-02 21:13:38,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:38,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:13:38,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:38,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:13:38,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:13:38,392 INFO L87 Difference]: Start difference. First operand 707 states and 846 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:38,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:38,574 INFO L93 Difference]: Finished difference Result 811 states and 963 transitions. [2022-11-02 21:13:38,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:13:38,574 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2022-11-02 21:13:38,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:38,575 INFO L225 Difference]: With dead ends: 811 [2022-11-02 21:13:38,575 INFO L226 Difference]: Without dead ends: 783 [2022-11-02 21:13:38,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:13:38,576 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 93 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:38,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 2576 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:38,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2022-11-02 21:13:38,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 767. [2022-11-02 21:13:38,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 662 states have (on average 1.1963746223564955) internal successors, (792), 676 states have internal predecessors, (792), 53 states have call successors, (53), 35 states have call predecessors, (53), 51 states have return successors, (68), 55 states have call predecessors, (68), 49 states have call successors, (68) [2022-11-02 21:13:38,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 913 transitions. [2022-11-02 21:13:38,583 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 913 transitions. Word has length 56 [2022-11-02 21:13:38,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:38,583 INFO L495 AbstractCegarLoop]: Abstraction has 767 states and 913 transitions. [2022-11-02 21:13:38,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:38,584 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 913 transitions. [2022-11-02 21:13:38,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-02 21:13:38,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:38,585 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:38,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (106)] Ended with exit code 0 [2022-11-02 21:13:38,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:38,796 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:38,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:38,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1924152368, now seen corresponding path program 1 times [2022-11-02 21:13:38,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:38,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027424101] [2022-11-02 21:13:38,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:38,797 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:38,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:38,799 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:38,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (107)] Waiting until timeout for monitored process [2022-11-02 21:13:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:38,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:13:38,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:38,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:38,948 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:38,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:38,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2027424101] [2022-11-02 21:13:38,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2027424101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:38,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:38,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:13:38,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072514737] [2022-11-02 21:13:38,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:38,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:13:38,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:38,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:13:38,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:13:38,950 INFO L87 Difference]: Start difference. First operand 767 states and 913 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:38,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:38,972 INFO L93 Difference]: Finished difference Result 780 states and 921 transitions. [2022-11-02 21:13:38,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:13:38,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2022-11-02 21:13:38,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:38,974 INFO L225 Difference]: With dead ends: 780 [2022-11-02 21:13:38,974 INFO L226 Difference]: Without dead ends: 774 [2022-11-02 21:13:38,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:13:38,974 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 314 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:38,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 380 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:13:38,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2022-11-02 21:13:38,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 724. [2022-11-02 21:13:38,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 621 states have (on average 1.1884057971014492) internal successors, (738), 635 states have internal predecessors, (738), 53 states have call successors, (53), 35 states have call predecessors, (53), 49 states have return successors, (66), 53 states have call predecessors, (66), 49 states have call successors, (66) [2022-11-02 21:13:38,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 857 transitions. [2022-11-02 21:13:38,986 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 857 transitions. Word has length 56 [2022-11-02 21:13:38,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:38,986 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 857 transitions. [2022-11-02 21:13:38,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:38,987 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 857 transitions. [2022-11-02 21:13:38,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-02 21:13:38,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:38,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:39,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (107)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:39,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:39,200 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:39,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:39,201 INFO L85 PathProgramCache]: Analyzing trace with hash 123923372, now seen corresponding path program 1 times [2022-11-02 21:13:39,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:39,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025275616] [2022-11-02 21:13:39,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:39,201 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:39,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:39,202 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:39,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (108)] Waiting until timeout for monitored process [2022-11-02 21:13:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:39,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:39,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:39,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:39,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:39,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:39,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025275616] [2022-11-02 21:13:39,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025275616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:39,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:39,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:39,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214428035] [2022-11-02 21:13:39,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:39,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:39,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:39,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:39,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:39,542 INFO L87 Difference]: Start difference. First operand 724 states and 857 transitions. Second operand has 12 states, 12 states have (on average 5.0) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 21:13:39,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:39,821 INFO L93 Difference]: Finished difference Result 748 states and 881 transitions. [2022-11-02 21:13:39,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:39,821 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 67 [2022-11-02 21:13:39,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:39,822 INFO L225 Difference]: With dead ends: 748 [2022-11-02 21:13:39,822 INFO L226 Difference]: Without dead ends: 711 [2022-11-02 21:13:39,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:13:39,823 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 42 mSDsluCounter, 3203 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3541 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:39,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 3541 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:39,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-11-02 21:13:39,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 695. [2022-11-02 21:13:39,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 595 states have (on average 1.1915966386554622) internal successors, (709), 608 states have internal predecessors, (709), 50 states have call successors, (50), 35 states have call predecessors, (50), 49 states have return successors, (63), 51 states have call predecessors, (63), 46 states have call successors, (63) [2022-11-02 21:13:39,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 822 transitions. [2022-11-02 21:13:39,832 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 822 transitions. Word has length 67 [2022-11-02 21:13:39,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:39,832 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 822 transitions. [2022-11-02 21:13:39,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 21:13:39,832 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 822 transitions. [2022-11-02 21:13:39,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-02 21:13:39,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:39,833 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:39,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (108)] Ended with exit code 0 [2022-11-02 21:13:40,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:40,033 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:40,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:40,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1608050986, now seen corresponding path program 1 times [2022-11-02 21:13:40,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:40,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379388017] [2022-11-02 21:13:40,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:40,034 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:40,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:40,035 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:40,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (109)] Waiting until timeout for monitored process [2022-11-02 21:13:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:13:40,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:40,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:40,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:40,379 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:40,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379388017] [2022-11-02 21:13:40,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [379388017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:40,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:40,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 21:13:40,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839167467] [2022-11-02 21:13:40,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:40,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:13:40,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:40,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:13:40,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:13:40,381 INFO L87 Difference]: Start difference. First operand 695 states and 822 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:40,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:40,646 INFO L93 Difference]: Finished difference Result 710 states and 836 transitions. [2022-11-02 21:13:40,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:13:40,646 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-11-02 21:13:40,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:40,647 INFO L225 Difference]: With dead ends: 710 [2022-11-02 21:13:40,647 INFO L226 Difference]: Without dead ends: 657 [2022-11-02 21:13:40,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:13:40,648 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 42 mSDsluCounter, 3016 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3333 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:40,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 3333 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:13:40,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2022-11-02 21:13:40,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 645. [2022-11-02 21:13:40,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 551 states have (on average 1.1978221415607986) internal successors, (660), 563 states have internal predecessors, (660), 46 states have call successors, (46), 33 states have call predecessors, (46), 47 states have return successors, (59), 48 states have call predecessors, (59), 42 states have call successors, (59) [2022-11-02 21:13:40,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 765 transitions. [2022-11-02 21:13:40,654 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 765 transitions. Word has length 57 [2022-11-02 21:13:40,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:40,654 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 765 transitions. [2022-11-02 21:13:40,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:40,654 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 765 transitions. [2022-11-02 21:13:40,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-02 21:13:40,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:40,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:40,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (109)] Ended with exit code 0 [2022-11-02 21:13:40,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:40,855 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:40,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:40,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1546270633, now seen corresponding path program 1 times [2022-11-02 21:13:40,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:40,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485391461] [2022-11-02 21:13:40,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:40,856 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:40,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:40,857 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:40,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (110)] Waiting until timeout for monitored process [2022-11-02 21:13:40,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:40,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 21:13:40,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:41,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:41,155 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:41,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:41,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485391461] [2022-11-02 21:13:41,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [485391461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:41,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:41,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-02 21:13:41,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974004001] [2022-11-02 21:13:41,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:41,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:13:41,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:41,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:13:41,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:13:41,157 INFO L87 Difference]: Start difference. First operand 645 states and 765 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:41,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:41,339 INFO L93 Difference]: Finished difference Result 663 states and 782 transitions. [2022-11-02 21:13:41,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:13:41,346 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-11-02 21:13:41,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:41,348 INFO L225 Difference]: With dead ends: 663 [2022-11-02 21:13:41,348 INFO L226 Difference]: Without dead ends: 622 [2022-11-02 21:13:41,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:13:41,348 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 93 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2238 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:41,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 2238 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:13:41,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-11-02 21:13:41,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 565. [2022-11-02 21:13:41,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 478 states have (on average 1.207112970711297) internal successors, (577), 487 states have internal predecessors, (577), 45 states have call successors, (45), 33 states have call predecessors, (45), 41 states have return successors, (53), 44 states have call predecessors, (53), 42 states have call successors, (53) [2022-11-02 21:13:41,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 675 transitions. [2022-11-02 21:13:41,357 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 675 transitions. Word has length 57 [2022-11-02 21:13:41,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:41,357 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 675 transitions. [2022-11-02 21:13:41,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:13:41,357 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 675 transitions. [2022-11-02 21:13:41,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-02 21:13:41,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:41,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:41,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (110)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:41,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:41,571 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:41,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:41,571 INFO L85 PathProgramCache]: Analyzing trace with hash 218918919, now seen corresponding path program 1 times [2022-11-02 21:13:41,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:41,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695225083] [2022-11-02 21:13:41,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:41,572 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:41,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:41,573 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:41,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (111)] Waiting until timeout for monitored process [2022-11-02 21:13:41,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:13:41,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 21:13:41,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:41,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:13:41,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:13:41,758 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:13:41,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695225083] [2022-11-02 21:13:41,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695225083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:13:41,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:13:41,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:13:41,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852107266] [2022-11-02 21:13:41,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:13:41,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:13:41,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:13:41,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:13:41,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:13:41,760 INFO L87 Difference]: Start difference. First operand 565 states and 675 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:13:41,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:13:41,783 INFO L93 Difference]: Finished difference Result 691 states and 829 transitions. [2022-11-02 21:13:41,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:13:41,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 58 [2022-11-02 21:13:41,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:13:41,785 INFO L225 Difference]: With dead ends: 691 [2022-11-02 21:13:41,785 INFO L226 Difference]: Without dead ends: 691 [2022-11-02 21:13:41,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:13:41,785 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 241 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:13:41,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 799 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:13:41,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2022-11-02 21:13:41,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 407. [2022-11-02 21:13:41,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 349 states have (on average 1.186246418338109) internal successors, (414), 354 states have internal predecessors, (414), 30 states have call successors, (30), 22 states have call predecessors, (30), 27 states have return successors, (33), 30 states have call predecessors, (33), 27 states have call successors, (33) [2022-11-02 21:13:41,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 477 transitions. [2022-11-02 21:13:41,792 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 477 transitions. Word has length 58 [2022-11-02 21:13:41,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:13:41,793 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 477 transitions. [2022-11-02 21:13:41,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:13:41,793 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 477 transitions. [2022-11-02 21:13:41,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-02 21:13:41,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:13:41,794 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:41,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (111)] Ended with exit code 0 [2022-11-02 21:13:42,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:42,006 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-02 21:13:42,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:13:42,006 INFO L85 PathProgramCache]: Analyzing trace with hash -2090035410, now seen corresponding path program 1 times [2022-11-02 21:13:42,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:13:42,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273601328] [2022-11-02 21:13:42,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:13:42,007 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:13:42,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:13:42,008 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:13:42,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (112)] Waiting until timeout for monitored process [2022-11-02 21:13:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:13:42,131 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:13:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:13:42,263 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-02 21:13:42,263 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 21:13:42,264 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-11-02 21:13:42,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-11-02 21:13:42,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (112)] Forceful destruction successful, exit code 0 [2022-11-02 21:13:42,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:13:42,483 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:13:42,486 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:13:42,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:13:42 BoogieIcfgContainer [2022-11-02 21:13:42,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:13:42,597 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:13:42,610 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:13:42,610 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:13:42,611 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:12:24" (3/4) ... [2022-11-02 21:13:42,614 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 21:13:42,614 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:13:42,614 INFO L158 Benchmark]: Toolchain (without parser) took 80923.80ms. Allocated memory was 62.9MB in the beginning and 195.0MB in the end (delta: 132.1MB). Free memory was 39.9MB in the beginning and 83.4MB in the end (delta: -43.5MB). Peak memory consumption was 89.0MB. Max. memory is 16.1GB. [2022-11-02 21:13:42,614 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 62.9MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:13:42,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 828.78ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 39.6MB in the beginning and 60.6MB in the end (delta: -21.0MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2022-11-02 21:13:42,615 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.41ms. Allocated memory is still 81.8MB. Free memory was 60.6MB in the beginning and 54.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-02 21:13:42,615 INFO L158 Benchmark]: Boogie Preprocessor took 86.57ms. Allocated memory is still 81.8MB. Free memory was 54.3MB in the beginning and 49.4MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 21:13:42,615 INFO L158 Benchmark]: RCFGBuilder took 1937.70ms. Allocated memory was 81.8MB in the beginning and 111.1MB in the end (delta: 29.4MB). Free memory was 49.0MB in the beginning and 77.7MB in the end (delta: -28.7MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2022-11-02 21:13:42,615 INFO L158 Benchmark]: TraceAbstraction took 77922.23ms. Allocated memory was 111.1MB in the beginning and 195.0MB in the end (delta: 83.9MB). Free memory was 77.1MB in the beginning and 83.4MB in the end (delta: -6.3MB). Peak memory consumption was 77.8MB. Max. memory is 16.1GB. [2022-11-02 21:13:42,615 INFO L158 Benchmark]: Witness Printer took 16.54ms. Allocated memory is still 195.0MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:13:42,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 62.9MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 828.78ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 39.6MB in the beginning and 60.6MB in the end (delta: -21.0MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.41ms. Allocated memory is still 81.8MB. Free memory was 60.6MB in the beginning and 54.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.57ms. Allocated memory is still 81.8MB. Free memory was 54.3MB in the beginning and 49.4MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1937.70ms. Allocated memory was 81.8MB in the beginning and 111.1MB in the end (delta: 29.4MB). Free memory was 49.0MB in the beginning and 77.7MB in the end (delta: -28.7MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * TraceAbstraction took 77922.23ms. Allocated memory was 111.1MB in the beginning and 195.0MB in the end (delta: 83.9MB). Free memory was 77.1MB in the beginning and 83.4MB in the end (delta: -6.3MB). Peak memory consumption was 77.8MB. Max. memory is 16.1GB. * Witness Printer took 16.54ms. Allocated memory is still 195.0MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 59]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 59. Possible FailurePath: [L32] int s ; [L33] int UNLOADED ; [L34] int NP ; [L35] int DC ; [L36] int SKIP1 ; [L37] int SKIP2 ; [L38] int MPR1 ; [L39] int MPR3 ; [L40] int IPC ; [L41] int pended ; [L42] int compFptr ; [L43] int compRegistered ; [L44] int lowerDriverReturn ; [L45] int setEventCalled ; [L46] int customIrp ; [L47] int routine ; [L48] int myStatus ; [L49] int pirp ; [L50] int Executive ; [L51] int Suspended ; [L52] int KernelMode ; [L53] int DeviceUsageTypePaging ; VAL [compFptr=0, compRegistered=0, customIrp=0, DC=0, DeviceUsageTypePaging=0, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=0, routine=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L1718] int pirp__IoStatus__Status ; [L1719] int d = __VERIFIER_nondet_int() ; [L1720] int status = __VERIFIER_nondet_int() ; [L1721] int irp = __VERIFIER_nondet_int() ; [L1722] int we_should_unload = __VERIFIER_nondet_int() ; [L1723] int irp_choice = __VERIFIER_nondet_int() ; [L1724] int devobj = __VERIFIER_nondet_int() ; [L1725] int __cil_tmp9 ; [L1730] s = 0 [L1731] UNLOADED = 0 [L1732] NP = 0 [L1733] DC = 0 [L1734] SKIP1 = 0 [L1735] SKIP2 = 0 [L1736] MPR1 = 0 [L1737] MPR3 = 0 [L1738] IPC = 0 [L1739] pended = 0 [L1740] compFptr = 0 [L1741] compRegistered = 0 [L1742] lowerDriverReturn = 0 [L1743] setEventCalled = 0 [L1744] customIrp = 0 [L1745] routine = 0 [L1746] myStatus = 0 [L1747] pirp = 0 [L1748] Executive = 0 [L1749] Suspended = 5 [L1750] KernelMode = 0 [L1751] DeviceUsageTypePaging = 1 [L1754] pirp = irp [L1755] CALL _BLAST_init() [L67] UNLOADED = 0 [L68] NP = 1 [L69] DC = 2 [L70] SKIP1 = 3 [L71] SKIP2 = 4 [L72] MPR1 = 5 [L73] MPR3 = 6 [L74] IPC = 7 [L75] s = UNLOADED [L76] pended = 0 [L77] compFptr = 0 [L78] compRegistered = 0 [L79] lowerDriverReturn = 0 [L80] setEventCalled = 0 [L81] customIrp = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=9, routine=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1755] RET _BLAST_init() [L1757] COND TRUE status >= 0 [L1758] s = NP [L1759] customIrp = 0 [L1760] setEventCalled = customIrp [L1761] lowerDriverReturn = setEventCalled [L1762] compRegistered = lowerDriverReturn [L1763] compFptr = compRegistered [L1764] pended = compFptr [L1765] pirp__IoStatus__Status = 0 [L1766] myStatus = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=9, pirp__IoStatus__Status=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0] [L1767] COND TRUE irp_choice == 0 [L1768] pirp__IoStatus__Status = -1073741637 [L1769] myStatus = -1073741637 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0] [L1772] CALL stub_driver_init() [L1707] s = NP [L1708] customIrp = 0 [L1709] setEventCalled = customIrp [L1710] lowerDriverReturn = setEventCalled [L1711] compRegistered = lowerDriverReturn [L1712] compFptr = compRegistered [L1713] pended = compFptr VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1772] RET stub_driver_init() [L1775] COND FALSE !(status < 0) [L1779] int tmp_ndt_1; [L1780] tmp_ndt_1 = __VERIFIER_nondet_int() [L1781] COND TRUE tmp_ndt_1 == 2 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0] [L1798] CALL, EXPR CdAudioDeviceControl(devobj, pirp) [L313] int deviceExtension__Active = __VERIFIER_nondet_int() ; [L314] int status ; VAL [\old(DeviceObject)=8, \old(Irp)=9, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L317] COND FALSE !(deviceExtension__Active == 2) VAL [\old(DeviceObject)=8, \old(Irp)=9, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L320] COND FALSE !(deviceExtension__Active == 3) VAL [\old(DeviceObject)=8, \old(Irp)=9, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L323] COND FALSE !(deviceExtension__Active == 1) VAL [\old(DeviceObject)=8, \old(Irp)=9, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L326] COND TRUE deviceExtension__Active == 7 VAL [\old(DeviceObject)=8, \old(Irp)=9, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L348] CALL, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L1591] int currentIrpStack__Parameters__DeviceIoControl__IoControlCode = __VERIFIER_nondet_int() ; [L1592] int deviceExtension__TargetDeviceObject = __VERIFIER_nondet_int() ; [L1593] int irpSp__Control ; [L1594] int tmp ; [L1595] int tmp___0 ; [L1596] int __cil_tmp8 ; [L1597] int __cil_tmp9 ; [L1598] int __cil_tmp10 ; [L1599] int __cil_tmp11 ; [L1600] int __cil_tmp12 ; [L1604] __cil_tmp8 = 56 [L1605] __cil_tmp9 = 16384 [L1606] __cil_tmp10 = 131072 [L1607] __cil_tmp11 = 147456 [L1608] __cil_tmp12 = 147512 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1609] COND TRUE currentIrpStack__Parameters__DeviceIoControl__IoControlCode == __cil_tmp12 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1610] COND FALSE !(s != NP) VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1615] COND FALSE !(compRegistered != 0) [L1620] compRegistered = 1 [L1621] routine = 0 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1625] irpSp__Control = 224 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] CALL, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1900] int Irp__PendingReturned = __VERIFIER_nondet_int() ; [L1901] int returnVal2 ; [L1902] int compRetStatus ; [L1903] int lcontext = __VERIFIER_nondet_int() ; [L1904] unsigned long __cil_tmp8 ; VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1907] COND TRUE \read(compRegistered) VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1908] COND TRUE routine == 0 VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] CALL, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(Context)=11, \old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1569] int Irp__PendingReturned = __VERIFIER_nondet_int() ; [L1570] int Irp__AssociatedIrp__SystemBuffer = __VERIFIER_nondet_int() ; [L1573] COND TRUE \read(Irp__PendingReturned) VAL [\old(Context)=11, \old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, Context=11, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__AssociatedIrp__SystemBuffer=13, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1574] COND TRUE pended == 0 [L1575] pended = 1 VAL [\old(Context)=11, \old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, Context=11, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__AssociatedIrp__SystemBuffer=13, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1582] COND FALSE !(myStatus >= 0) VAL [\old(Context)=11, \old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, Context=11, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__AssociatedIrp__SystemBuffer=13, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1587] return (myStatus); VAL [\old(Context)=11, \old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \result=-1073741637, compFptr=0, compRegistered=1, Context=11, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__AssociatedIrp__SystemBuffer=13, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] RET, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, HPCdrCompletion(DeviceObject, Irp, lcontext)=-1073741637, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] compRetStatus = HPCdrCompletion(DeviceObject, Irp, lcontext) [L1920] __cil_tmp8 = (unsigned long )compRetStatus VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1921] COND FALSE !(__cil_tmp8 == -1073741802) VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1928] COND FALSE !(\read(Irp__PendingReturned)) [L1931] int tmp_ndt_4; [L1932] tmp_ndt_4 = __VERIFIER_nondet_int() [L1933] COND TRUE tmp_ndt_4 == 0 VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1944] returnVal2 = 0 VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, returnVal2=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1958] COND TRUE s == NP [L1959] s = IPC [L1960] lowerDriverReturn = returnVal2 VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, returnVal2=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1981] return (returnVal2); VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \result=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, returnVal2=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1626] RET, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=10, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IofCallDriver(deviceExtension__TargetDeviceObject, Irp)=0, IPC=7, Irp=9, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] tmp = IofCallDriver(deviceExtension__TargetDeviceObject, Irp) [L1628] return (tmp); VAL [\old(DeviceObject)=8, \old(Irp)=9, \result=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=10, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp=0, UNLOADED=0] [L348] RET, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L348] status = CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L363] return (status); VAL [\old(DeviceObject)=8, \old(Irp)=9, \result=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0] [L1798] RET, EXPR CdAudioDeviceControl(devobj, pirp) [L1798] status = CdAudioDeviceControl(devobj, pirp) [L1819] COND FALSE !(\read(we_should_unload)) VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1825] COND TRUE pended == 1 VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1826] COND FALSE !(s == NP) VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1833] COND TRUE pended == 1 VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1834] COND FALSE !(s == MPR3) VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1841] COND TRUE s != UNLOADED VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1842] COND TRUE status != -1 VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1843] COND TRUE s != SKIP2 VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1844] COND FALSE !(s != IPC) VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1857] COND FALSE !(pended != 1) VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1869] COND TRUE status != 259 VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1871] CALL errorFn() VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L59] reach_error() VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] - UnprovableResult [Line: 1717]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 471 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 77.7s, OverallIterations: 111, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 23.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14724 SdHoareTripleChecker+Valid, 16.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14523 mSDsluCounter, 334868 SdHoareTripleChecker+Invalid, 13.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 274685 mSDsCounter, 550 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12901 IncrementalHoareTripleChecker+Invalid, 13451 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 550 mSolverCounterUnsat, 60183 mSDtfsCounter, 12901 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5322 GetRequests, 4463 SyntacticMatches, 0 SemanticMatches, 859 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 8.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1062occurred in iteration=39, InterpolantAutomatonStates: 809, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 110 MinimizatonAttempts, 2681 StatesRemovedByMinimization, 76 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.3s SsaConstructionTime, 4.7s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 5220 NumberOfCodeBlocks, 5220 NumberOfCodeBlocksAsserted, 111 NumberOfCheckSat, 5052 ConstructedInterpolants, 0 QuantifiedInterpolants, 13388 SizeOfPredicates, 368 NumberOfNonLiveVariables, 18765 ConjunctsInSsa, 798 ConjunctsInUnsatCore, 110 InterpolantComputations, 110 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-02 21:13:42,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb59004-1d3c-430c-90cc-71ba9fb6a101/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample