./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019e349c-688a-4d79-944c-876cacbb919b/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019e349c-688a-4d79-944c-876cacbb919b/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019e349c-688a-4d79-944c-876cacbb919b/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019e349c-688a-4d79-944c-876cacbb919b/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019e349c-688a-4d79-944c-876cacbb919b/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019e349c-688a-4d79-944c-876cacbb919b/bin/uautomizer-tPACEb0tL8 --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 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 --- 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-e04fb08 [2022-11-16 11:51:16,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:51:16,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:51:16,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:51:16,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:51:16,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:51:16,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:51:16,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:51:16,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:51:16,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:51:16,060 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:51:16,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:51:16,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:51:16,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:51:16,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:51:16,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:51:16,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:51:16,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:51:16,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:51:16,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:51:16,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:51:16,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:51:16,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:51:16,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:51:16,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:51:16,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:51:16,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:51:16,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:51:16,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:51:16,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:51:16,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:51:16,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:51:16,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:51:16,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:51:16,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:51:16,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:51:16,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:51:16,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:51:16,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:51:16,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:51:16,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:51:16,115 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019e349c-688a-4d79-944c-876cacbb919b/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-16 11:51:16,155 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:51:16,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:51:16,158 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:51:16,158 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:51:16,159 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:51:16,159 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:51:16,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:51:16,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:51:16,160 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:51:16,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:51:16,162 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:51:16,162 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:51:16,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:51:16,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:51:16,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:51:16,163 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 11:51:16,164 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 11:51:16,164 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 11:51:16,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:51:16,164 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:51:16,164 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:51:16,165 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:51:16,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:51:16,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:51:16,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:51:16,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:51:16,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:51:16,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:51:16,166 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:51:16,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:51:16,167 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_019e349c-688a-4d79-944c-876cacbb919b/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019e349c-688a-4d79-944c-876cacbb919b/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 [2022-11-16 11:51:16,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:51:16,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:51:16,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:51:16,477 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:51:16,478 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:51:16,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019e349c-688a-4d79-944c-876cacbb919b/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2022-11-16 11:51:16,560 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019e349c-688a-4d79-944c-876cacbb919b/bin/uautomizer-tPACEb0tL8/data/14e5edc5d/aeaf1e2f4368490f8ab50d37ac9db4b5/FLAG8c48e8da5 [2022-11-16 11:51:16,985 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:51:16,986 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019e349c-688a-4d79-944c-876cacbb919b/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c [2022-11-16 11:51:16,993 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019e349c-688a-4d79-944c-876cacbb919b/bin/uautomizer-tPACEb0tL8/data/14e5edc5d/aeaf1e2f4368490f8ab50d37ac9db4b5/FLAG8c48e8da5 [2022-11-16 11:51:17,369 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019e349c-688a-4d79-944c-876cacbb919b/bin/uautomizer-tPACEb0tL8/data/14e5edc5d/aeaf1e2f4368490f8ab50d37ac9db4b5 [2022-11-16 11:51:17,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:51:17,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:51:17,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:51:17,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:51:17,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:51:17,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:51:17" (1/1) ... [2022-11-16 11:51:17,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@719551e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:17, skipping insertion in model container [2022-11-16 11:51:17,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:51:17" (1/1) ... [2022-11-16 11:51:17,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:51:17,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:51:17,662 WARN L229 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_019e349c-688a-4d79-944c-876cacbb919b/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-11-16 11:51:17,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:51:17,685 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:51:17,733 WARN L229 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_019e349c-688a-4d79-944c-876cacbb919b/sv-benchmarks/c/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-11-16 11:51:17,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:51:17,762 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:51:17,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:17 WrapperNode [2022-11-16 11:51:17,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:51:17,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:51:17,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:51:17,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:51:17,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:17" (1/1) ... [2022-11-16 11:51:17,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:17" (1/1) ... [2022-11-16 11:51:17,840 INFO L138 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 238 [2022-11-16 11:51:17,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:51:17,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:51:17,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:51:17,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:51:17,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:17" (1/1) ... [2022-11-16 11:51:17,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:17" (1/1) ... [2022-11-16 11:51:17,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:17" (1/1) ... [2022-11-16 11:51:17,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:17" (1/1) ... [2022-11-16 11:51:17,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:17" (1/1) ... [2022-11-16 11:51:17,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:17" (1/1) ... [2022-11-16 11:51:17,875 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:17" (1/1) ... [2022-11-16 11:51:17,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:17" (1/1) ... [2022-11-16 11:51:17,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:51:17,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:51:17,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:51:17,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:51:17,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:17" (1/1) ... [2022-11-16 11:51:17,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:51:17,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019e349c-688a-4d79-944c-876cacbb919b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:51:17,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019e349c-688a-4d79-944c-876cacbb919b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:51:17,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019e349c-688a-4d79-944c-876cacbb919b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:51:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:51:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:51:17,950 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:51:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:51:17,950 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:51:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 11:51:17,951 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 11:51:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-16 11:51:17,951 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-16 11:51:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:51:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-16 11:51:17,951 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-16 11:51:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:51:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:51:17,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:51:17,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:51:17,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:51:17,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:51:17,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:51:17,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:51:17,954 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:51:18,069 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:51:18,071 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:51:18,510 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:51:18,633 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:51:18,634 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:51:18,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:51:18 BoogieIcfgContainer [2022-11-16 11:51:18,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:51:18,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:51:18,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:51:18,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:51:18,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:51:17" (1/3) ... [2022-11-16 11:51:18,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a16d0d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:51:18, skipping insertion in model container [2022-11-16 11:51:18,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:17" (2/3) ... [2022-11-16 11:51:18,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a16d0d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:51:18, skipping insertion in model container [2022-11-16 11:51:18,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:51:18" (3/3) ... [2022-11-16 11:51:18,654 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2022-11-16 11:51:18,674 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:51:18,674 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-16 11:51:18,675 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:51:18,815 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-11-16 11:51:18,851 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 11:51:18,867 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 189 transitions, 418 flow [2022-11-16 11:51:18,870 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 189 transitions, 418 flow [2022-11-16 11:51:18,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 189 transitions, 418 flow [2022-11-16 11:51:18,959 INFO L130 PetriNetUnfolder]: 2/184 cut-off events. [2022-11-16 11:51:18,959 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 11:51:18,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 184 events. 2/184 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 139 event pairs, 0 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 131. Up to 2 conditions per place. [2022-11-16 11:51:18,967 INFO L119 LiptonReduction]: Number of co-enabled transitions 2702 [2022-11-16 11:51:30,782 INFO L134 LiptonReduction]: Checked pairs total: 6758 [2022-11-16 11:51:30,782 INFO L136 LiptonReduction]: Total number of compositions: 175 [2022-11-16 11:51:30,791 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 59 transitions, 158 flow [2022-11-16 11:51:30,989 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2423 states, 2401 states have (on average 3.8446480633069555) internal successors, (9231), 2422 states have internal predecessors, (9231), 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) [2022-11-16 11:51:31,016 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:51:31,022 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;@179ae4d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:51:31,022 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-11-16 11:51:31,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 2423 states, 2401 states have (on average 3.8446480633069555) internal successors, (9231), 2422 states have internal predecessors, (9231), 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) [2022-11-16 11:51:31,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-16 11:51:31,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:31,037 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-16 11:51:31,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:31,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:31,051 INFO L85 PathProgramCache]: Analyzing trace with hash 768, now seen corresponding path program 1 times [2022-11-16 11:51:31,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:31,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340081090] [2022-11-16 11:51:31,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:31,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:31,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:31,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:31,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340081090] [2022-11-16 11:51:31,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340081090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:31,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:31,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-16 11:51:31,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188499015] [2022-11-16 11:51:31,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:31,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:51:31,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:31,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:51:31,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:51:31,222 INFO L87 Difference]: Start difference. First operand has 2423 states, 2401 states have (on average 3.8446480633069555) internal successors, (9231), 2422 states have internal predecessors, (9231), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-16 11:51:31,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:31,398 INFO L93 Difference]: Finished difference Result 2420 states and 9228 transitions. [2022-11-16 11:51:31,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:51:31,401 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-11-16 11:51:31,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:31,446 INFO L225 Difference]: With dead ends: 2420 [2022-11-16 11:51:31,446 INFO L226 Difference]: Without dead ends: 2420 [2022-11-16 11:51:31,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:51:31,452 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:31,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:51:31,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2022-11-16 11:51:31,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2420. [2022-11-16 11:51:31,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 2401 states have (on average 3.8433985839233653) internal successors, (9228), 2419 states have internal predecessors, (9228), 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) [2022-11-16 11:51:31,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 9228 transitions. [2022-11-16 11:51:31,660 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 9228 transitions. Word has length 1 [2022-11-16 11:51:31,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:31,660 INFO L495 AbstractCegarLoop]: Abstraction has 2420 states and 9228 transitions. [2022-11-16 11:51:31,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-16 11:51:31,661 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 9228 transitions. [2022-11-16 11:51:31,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 11:51:31,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:31,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 11:51:31,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:51:31,662 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:31,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:31,663 INFO L85 PathProgramCache]: Analyzing trace with hash 754832, now seen corresponding path program 1 times [2022-11-16 11:51:31,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:31,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632791386] [2022-11-16 11:51:31,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:31,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:32,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:32,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:32,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632791386] [2022-11-16 11:51:32,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632791386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:32,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:32,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:51:32,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077072521] [2022-11-16 11:51:32,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:32,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:51:32,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:32,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:51:32,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:51:32,214 INFO L87 Difference]: Start difference. First operand 2420 states and 9228 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-16 11:51:32,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:32,343 INFO L93 Difference]: Finished difference Result 2335 states and 8924 transitions. [2022-11-16 11:51:32,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:51:32,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-16 11:51:32,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:32,362 INFO L225 Difference]: With dead ends: 2335 [2022-11-16 11:51:32,363 INFO L226 Difference]: Without dead ends: 2335 [2022-11-16 11:51:32,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:51:32,364 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 46 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:32,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 0 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:51:32,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2335 states. [2022-11-16 11:51:32,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2335 to 2335. [2022-11-16 11:51:32,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2318 states have (on average 3.8498705780845555) internal successors, (8924), 2334 states have internal predecessors, (8924), 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) [2022-11-16 11:51:32,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 8924 transitions. [2022-11-16 11:51:32,463 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 8924 transitions. Word has length 3 [2022-11-16 11:51:32,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:32,463 INFO L495 AbstractCegarLoop]: Abstraction has 2335 states and 8924 transitions. [2022-11-16 11:51:32,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-16 11:51:32,464 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 8924 transitions. [2022-11-16 11:51:32,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 11:51:32,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:32,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 11:51:32,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:51:32,465 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:32,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:32,465 INFO L85 PathProgramCache]: Analyzing trace with hash 754833, now seen corresponding path program 1 times [2022-11-16 11:51:32,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:32,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504090358] [2022-11-16 11:51:32,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:32,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:32,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:32,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:32,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504090358] [2022-11-16 11:51:32,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504090358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:32,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:32,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:51:32,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849159631] [2022-11-16 11:51:32,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:32,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:51:32,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:32,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:51:32,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:51:32,767 INFO L87 Difference]: Start difference. First operand 2335 states and 8924 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-16 11:51:32,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:32,870 INFO L93 Difference]: Finished difference Result 2250 states and 8620 transitions. [2022-11-16 11:51:32,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:51:32,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-16 11:51:32,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:32,887 INFO L225 Difference]: With dead ends: 2250 [2022-11-16 11:51:32,887 INFO L226 Difference]: Without dead ends: 2250 [2022-11-16 11:51:32,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:51:32,892 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:32,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 0 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:51:32,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2250 states. [2022-11-16 11:51:32,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2250 to 2250. [2022-11-16 11:51:32,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2250 states, 2235 states have (on average 3.8568232662192394) internal successors, (8620), 2249 states have internal predecessors, (8620), 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) [2022-11-16 11:51:33,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2250 states to 2250 states and 8620 transitions. [2022-11-16 11:51:33,001 INFO L78 Accepts]: Start accepts. Automaton has 2250 states and 8620 transitions. Word has length 3 [2022-11-16 11:51:33,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:33,001 INFO L495 AbstractCegarLoop]: Abstraction has 2250 states and 8620 transitions. [2022-11-16 11:51:33,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-16 11:51:33,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2250 states and 8620 transitions. [2022-11-16 11:51:33,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 11:51:33,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:33,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 11:51:33,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:51:33,006 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:33,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:33,006 INFO L85 PathProgramCache]: Analyzing trace with hash 725410517, now seen corresponding path program 1 times [2022-11-16 11:51:33,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:33,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398193533] [2022-11-16 11:51:33,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:33,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:33,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:33,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:33,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398193533] [2022-11-16 11:51:33,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398193533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:33,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:33,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:51:33,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832118903] [2022-11-16 11:51:33,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:33,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:51:33,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:33,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:51:33,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:51:33,225 INFO L87 Difference]: Start difference. First operand 2250 states and 8620 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-16 11:51:33,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:33,313 INFO L93 Difference]: Finished difference Result 2211 states and 8510 transitions. [2022-11-16 11:51:33,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:51:33,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-16 11:51:33,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:33,329 INFO L225 Difference]: With dead ends: 2211 [2022-11-16 11:51:33,329 INFO L226 Difference]: Without dead ends: 2211 [2022-11-16 11:51:33,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:51:33,330 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:33,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:51:33,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2211 states. [2022-11-16 11:51:33,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2211 to 2211. [2022-11-16 11:51:33,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2211 states, 2198 states have (on average 3.8717015468607827) internal successors, (8510), 2210 states have internal predecessors, (8510), 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) [2022-11-16 11:51:33,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 8510 transitions. [2022-11-16 11:51:33,414 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 8510 transitions. Word has length 5 [2022-11-16 11:51:33,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:33,416 INFO L495 AbstractCegarLoop]: Abstraction has 2211 states and 8510 transitions. [2022-11-16 11:51:33,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-16 11:51:33,417 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 8510 transitions. [2022-11-16 11:51:33,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 11:51:33,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:33,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 11:51:33,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:51:33,418 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:33,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:33,418 INFO L85 PathProgramCache]: Analyzing trace with hash 725410518, now seen corresponding path program 1 times [2022-11-16 11:51:33,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:33,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259261544] [2022-11-16 11:51:33,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:33,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:33,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:33,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:33,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259261544] [2022-11-16 11:51:33,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259261544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:33,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:33,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:51:33,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847086426] [2022-11-16 11:51:33,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:33,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:51:33,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:33,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:51:33,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:51:33,592 INFO L87 Difference]: Start difference. First operand 2211 states and 8510 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-16 11:51:33,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:33,677 INFO L93 Difference]: Finished difference Result 2172 states and 8400 transitions. [2022-11-16 11:51:33,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:51:33,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-16 11:51:33,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:33,693 INFO L225 Difference]: With dead ends: 2172 [2022-11-16 11:51:33,693 INFO L226 Difference]: Without dead ends: 2172 [2022-11-16 11:51:33,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:51:33,694 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:33,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 0 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:51:33,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2022-11-16 11:51:33,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 2172. [2022-11-16 11:51:33,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2172 states, 2161 states have (on average 3.887089310504396) internal successors, (8400), 2171 states have internal predecessors, (8400), 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) [2022-11-16 11:51:33,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2172 states to 2172 states and 8400 transitions. [2022-11-16 11:51:33,773 INFO L78 Accepts]: Start accepts. Automaton has 2172 states and 8400 transitions. Word has length 5 [2022-11-16 11:51:33,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:33,773 INFO L495 AbstractCegarLoop]: Abstraction has 2172 states and 8400 transitions. [2022-11-16 11:51:33,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-16 11:51:33,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2172 states and 8400 transitions. [2022-11-16 11:51:33,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 11:51:33,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:33,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:51:33,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:51:33,775 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:33,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:33,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1334824627, now seen corresponding path program 1 times [2022-11-16 11:51:33,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:33,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419954193] [2022-11-16 11:51:33,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:33,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:33,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:33,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:33,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419954193] [2022-11-16 11:51:33,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419954193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:33,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:33,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:51:33,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621904750] [2022-11-16 11:51:33,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:33,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:51:33,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:33,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:51:33,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:51:33,875 INFO L87 Difference]: Start difference. First operand 2172 states and 8400 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-16 11:51:33,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:33,995 INFO L93 Difference]: Finished difference Result 2127 states and 8268 transitions. [2022-11-16 11:51:33,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:51:33,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-11-16 11:51:33,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:34,029 INFO L225 Difference]: With dead ends: 2127 [2022-11-16 11:51:34,029 INFO L226 Difference]: Without dead ends: 2127 [2022-11-16 11:51:34,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:51:34,031 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:34,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 0 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:51:34,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2127 states. [2022-11-16 11:51:34,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2127 to 2127. [2022-11-16 11:51:34,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2127 states, 2118 states have (on average 3.903682719546742) internal successors, (8268), 2126 states have internal predecessors, (8268), 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) [2022-11-16 11:51:34,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2127 states to 2127 states and 8268 transitions. [2022-11-16 11:51:34,111 INFO L78 Accepts]: Start accepts. Automaton has 2127 states and 8268 transitions. Word has length 7 [2022-11-16 11:51:34,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:34,112 INFO L495 AbstractCegarLoop]: Abstraction has 2127 states and 8268 transitions. [2022-11-16 11:51:34,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-16 11:51:34,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 8268 transitions. [2022-11-16 11:51:34,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 11:51:34,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:34,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:51:34,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:51:34,114 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:34,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:34,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1334824628, now seen corresponding path program 1 times [2022-11-16 11:51:34,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:34,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827968388] [2022-11-16 11:51:34,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:34,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:34,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:34,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:34,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827968388] [2022-11-16 11:51:34,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827968388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:34,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:34,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:51:34,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7427730] [2022-11-16 11:51:34,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:34,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:51:34,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:34,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:51:34,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:51:34,223 INFO L87 Difference]: Start difference. First operand 2127 states and 8268 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-16 11:51:34,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:34,306 INFO L93 Difference]: Finished difference Result 2082 states and 8136 transitions. [2022-11-16 11:51:34,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:51:34,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-11-16 11:51:34,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:34,319 INFO L225 Difference]: With dead ends: 2082 [2022-11-16 11:51:34,319 INFO L226 Difference]: Without dead ends: 2082 [2022-11-16 11:51:34,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:51:34,320 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 32 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:34,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 0 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:51:34,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2022-11-16 11:51:34,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 2082. [2022-11-16 11:51:34,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2082 states, 2075 states have (on average 3.920963855421687) internal successors, (8136), 2081 states have internal predecessors, (8136), 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) [2022-11-16 11:51:34,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 8136 transitions. [2022-11-16 11:51:34,438 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 8136 transitions. Word has length 7 [2022-11-16 11:51:34,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:34,439 INFO L495 AbstractCegarLoop]: Abstraction has 2082 states and 8136 transitions. [2022-11-16 11:51:34,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-16 11:51:34,439 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 8136 transitions. [2022-11-16 11:51:34,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 11:51:34,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:34,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:51:34,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:51:34,443 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:34,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:34,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1428737910, now seen corresponding path program 1 times [2022-11-16 11:51:34,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:34,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655525250] [2022-11-16 11:51:34,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:34,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:34,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:34,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:34,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655525250] [2022-11-16 11:51:34,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655525250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:34,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:34,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:51:34,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93757170] [2022-11-16 11:51:34,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:34,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:51:34,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:34,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:51:34,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:51:34,554 INFO L87 Difference]: Start difference. First operand 2082 states and 8136 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-11-16 11:51:34,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:34,634 INFO L93 Difference]: Finished difference Result 1971 states and 7726 transitions. [2022-11-16 11:51:34,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:51:34,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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 [2022-11-16 11:51:34,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:34,645 INFO L225 Difference]: With dead ends: 1971 [2022-11-16 11:51:34,646 INFO L226 Difference]: Without dead ends: 1971 [2022-11-16 11:51:34,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:51:34,648 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:34,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 0 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:51:34,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2022-11-16 11:51:34,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1971. [2022-11-16 11:51:34,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1971 states, 1966 states have (on average 3.9298067141403865) internal successors, (7726), 1970 states have internal predecessors, (7726), 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) [2022-11-16 11:51:34,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1971 states to 1971 states and 7726 transitions. [2022-11-16 11:51:34,725 INFO L78 Accepts]: Start accepts. Automaton has 1971 states and 7726 transitions. Word has length 9 [2022-11-16 11:51:34,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:34,726 INFO L495 AbstractCegarLoop]: Abstraction has 1971 states and 7726 transitions. [2022-11-16 11:51:34,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-11-16 11:51:34,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1971 states and 7726 transitions. [2022-11-16 11:51:34,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 11:51:34,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:34,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:51:34,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:51:34,728 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:34,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:34,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1428737908, now seen corresponding path program 1 times [2022-11-16 11:51:34,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:34,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175554551] [2022-11-16 11:51:34,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:34,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:34,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:34,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:34,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175554551] [2022-11-16 11:51:34,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175554551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:34,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:34,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:51:34,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882692613] [2022-11-16 11:51:34,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:34,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:51:34,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:34,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:51:34,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:51:34,788 INFO L87 Difference]: Start difference. First operand 1971 states and 7726 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-11-16 11:51:34,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:34,875 INFO L93 Difference]: Finished difference Result 1860 states and 7316 transitions. [2022-11-16 11:51:34,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:51:34,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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 [2022-11-16 11:51:34,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:34,886 INFO L225 Difference]: With dead ends: 1860 [2022-11-16 11:51:34,886 INFO L226 Difference]: Without dead ends: 1860 [2022-11-16 11:51:34,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:51:34,888 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:34,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 0 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:51:34,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2022-11-16 11:51:34,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1860. [2022-11-16 11:51:34,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1860 states, 1857 states have (on average 3.9396876682821755) internal successors, (7316), 1859 states have internal predecessors, (7316), 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) [2022-11-16 11:51:34,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1860 states to 1860 states and 7316 transitions. [2022-11-16 11:51:34,953 INFO L78 Accepts]: Start accepts. Automaton has 1860 states and 7316 transitions. Word has length 9 [2022-11-16 11:51:34,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:34,954 INFO L495 AbstractCegarLoop]: Abstraction has 1860 states and 7316 transitions. [2022-11-16 11:51:34,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-11-16 11:51:34,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1860 states and 7316 transitions. [2022-11-16 11:51:34,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 11:51:34,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:34,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:51:34,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:51:34,962 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:34,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:34,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1372422019, now seen corresponding path program 1 times [2022-11-16 11:51:34,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:34,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164078757] [2022-11-16 11:51:34,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:34,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:34,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:35,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:35,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164078757] [2022-11-16 11:51:35,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164078757] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:35,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:35,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:51:35,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140819042] [2022-11-16 11:51:35,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:35,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:51:35,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:35,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:51:35,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:51:35,215 INFO L87 Difference]: Start difference. First operand 1860 states and 7316 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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) [2022-11-16 11:51:35,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:35,285 INFO L93 Difference]: Finished difference Result 1536 states and 5885 transitions. [2022-11-16 11:51:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:51:35,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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 11 [2022-11-16 11:51:35,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:35,293 INFO L225 Difference]: With dead ends: 1536 [2022-11-16 11:51:35,293 INFO L226 Difference]: Without dead ends: 1536 [2022-11-16 11:51:35,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:51:35,294 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 60 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:35,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 0 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:51:35,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2022-11-16 11:51:35,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1536. [2022-11-16 11:51:35,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1536 states, 1534 states have (on average 3.8363754889178616) internal successors, (5885), 1535 states have internal predecessors, (5885), 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) [2022-11-16 11:51:35,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1536 states to 1536 states and 5885 transitions. [2022-11-16 11:51:35,369 INFO L78 Accepts]: Start accepts. Automaton has 1536 states and 5885 transitions. Word has length 11 [2022-11-16 11:51:35,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:35,369 INFO L495 AbstractCegarLoop]: Abstraction has 1536 states and 5885 transitions. [2022-11-16 11:51:35,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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) [2022-11-16 11:51:35,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1536 states and 5885 transitions. [2022-11-16 11:51:35,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 11:51:35,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:35,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:51:35,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:51:35,371 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:35,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:35,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1372422020, now seen corresponding path program 1 times [2022-11-16 11:51:35,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:35,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371249852] [2022-11-16 11:51:35,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:35,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:35,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:35,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:35,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371249852] [2022-11-16 11:51:35,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371249852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:35,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:35,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:51:35,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005777230] [2022-11-16 11:51:35,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:35,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:51:35,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:35,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:51:35,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:51:35,967 INFO L87 Difference]: Start difference. First operand 1536 states and 5885 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2022-11-16 11:51:36,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:36,095 INFO L93 Difference]: Finished difference Result 1212 states and 4454 transitions. [2022-11-16 11:51:36,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:51:36,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 11 [2022-11-16 11:51:36,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:36,101 INFO L225 Difference]: With dead ends: 1212 [2022-11-16 11:51:36,101 INFO L226 Difference]: Without dead ends: 1212 [2022-11-16 11:51:36,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:51:36,102 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 115 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:36,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 0 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:51:36,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2022-11-16 11:51:36,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 1212. [2022-11-16 11:51:36,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1212 states, 1211 states have (on average 3.6779521056977704) internal successors, (4454), 1211 states have internal predecessors, (4454), 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) [2022-11-16 11:51:36,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 4454 transitions. [2022-11-16 11:51:36,138 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 4454 transitions. Word has length 11 [2022-11-16 11:51:36,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:36,139 INFO L495 AbstractCegarLoop]: Abstraction has 1212 states and 4454 transitions. [2022-11-16 11:51:36,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2022-11-16 11:51:36,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 4454 transitions. [2022-11-16 11:51:36,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:36,143 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:36,143 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] [2022-11-16 11:51:36,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:51:36,143 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:36,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:36,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1225447402, now seen corresponding path program 1 times [2022-11-16 11:51:36,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:36,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602039363] [2022-11-16 11:51:36,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:36,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:36,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:36,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:36,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:36,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602039363] [2022-11-16 11:51:36,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602039363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:36,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:36,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:51:36,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150131181] [2022-11-16 11:51:36,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:36,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:51:36,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:36,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:51:36,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:51:36,612 INFO L87 Difference]: Start difference. First operand 1212 states and 4454 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:36,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:36,961 INFO L93 Difference]: Finished difference Result 1704 states and 6501 transitions. [2022-11-16 11:51:36,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:51:36,962 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:36,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:36,971 INFO L225 Difference]: With dead ends: 1704 [2022-11-16 11:51:36,971 INFO L226 Difference]: Without dead ends: 1704 [2022-11-16 11:51:36,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:51:36,973 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 73 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:36,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 0 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:51:36,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2022-11-16 11:51:37,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 1546. [2022-11-16 11:51:37,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1546 states, 1545 states have (on average 3.7689320388349516) internal successors, (5823), 1545 states have internal predecessors, (5823), 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) [2022-11-16 11:51:37,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 5823 transitions. [2022-11-16 11:51:37,042 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 5823 transitions. Word has length 32 [2022-11-16 11:51:37,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:37,042 INFO L495 AbstractCegarLoop]: Abstraction has 1546 states and 5823 transitions. [2022-11-16 11:51:37,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:37,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 5823 transitions. [2022-11-16 11:51:37,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:37,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:37,048 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] [2022-11-16 11:51:37,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:51:37,050 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:37,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:37,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1275561428, now seen corresponding path program 2 times [2022-11-16 11:51:37,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:37,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543074614] [2022-11-16 11:51:37,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:37,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:37,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:37,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:37,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:37,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543074614] [2022-11-16 11:51:37,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543074614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:37,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:37,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:51:37,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457434860] [2022-11-16 11:51:37,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:37,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:51:37,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:37,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:51:37,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:51:37,985 INFO L87 Difference]: Start difference. First operand 1546 states and 5823 transitions. Second operand has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:51:38,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:38,446 INFO L93 Difference]: Finished difference Result 2321 states and 8378 transitions. [2022-11-16 11:51:38,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:51:38,447 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:38,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:38,463 INFO L225 Difference]: With dead ends: 2321 [2022-11-16 11:51:38,464 INFO L226 Difference]: Without dead ends: 1758 [2022-11-16 11:51:38,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:51:38,465 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 144 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:38,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 0 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:51:38,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2022-11-16 11:51:38,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1622. [2022-11-16 11:51:38,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 1621 states have (on average 3.4984577421344847) internal successors, (5671), 1621 states have internal predecessors, (5671), 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) [2022-11-16 11:51:38,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 5671 transitions. [2022-11-16 11:51:38,521 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 5671 transitions. Word has length 32 [2022-11-16 11:51:38,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:38,522 INFO L495 AbstractCegarLoop]: Abstraction has 1622 states and 5671 transitions. [2022-11-16 11:51:38,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:51:38,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 5671 transitions. [2022-11-16 11:51:38,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:38,530 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:38,531 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] [2022-11-16 11:51:38,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:51:38,531 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:38,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:38,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1441678714, now seen corresponding path program 3 times [2022-11-16 11:51:38,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:38,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82064104] [2022-11-16 11:51:38,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:38,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:38,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:38,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:38,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82064104] [2022-11-16 11:51:38,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82064104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:38,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:38,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:51:38,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759139802] [2022-11-16 11:51:38,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:38,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:51:38,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:38,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:51:38,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:51:38,877 INFO L87 Difference]: Start difference. First operand 1622 states and 5671 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:51:39,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:39,362 INFO L93 Difference]: Finished difference Result 2204 states and 7673 transitions. [2022-11-16 11:51:39,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:51:39,363 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:39,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:39,379 INFO L225 Difference]: With dead ends: 2204 [2022-11-16 11:51:39,380 INFO L226 Difference]: Without dead ends: 2204 [2022-11-16 11:51:39,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:51:39,381 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 55 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:39,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 0 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:51:39,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2022-11-16 11:51:39,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 1654. [2022-11-16 11:51:39,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1653 states have (on average 3.49848759830611) internal successors, (5783), 1653 states have internal predecessors, (5783), 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) [2022-11-16 11:51:39,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 5783 transitions. [2022-11-16 11:51:39,447 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 5783 transitions. Word has length 32 [2022-11-16 11:51:39,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:39,447 INFO L495 AbstractCegarLoop]: Abstraction has 1654 states and 5783 transitions. [2022-11-16 11:51:39,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:51:39,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 5783 transitions. [2022-11-16 11:51:39,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:39,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:39,456 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] [2022-11-16 11:51:39,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:51:39,457 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:39,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:39,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1055797886, now seen corresponding path program 4 times [2022-11-16 11:51:39,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:39,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027005825] [2022-11-16 11:51:39,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:39,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:39,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:39,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:39,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027005825] [2022-11-16 11:51:39,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027005825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:39,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:39,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:51:39,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702959760] [2022-11-16 11:51:39,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:39,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:51:39,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:39,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:51:39,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:51:39,762 INFO L87 Difference]: Start difference. First operand 1654 states and 5783 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-11-16 11:51:39,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:39,937 INFO L93 Difference]: Finished difference Result 1586 states and 5509 transitions. [2022-11-16 11:51:39,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:51:39,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:39,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:39,944 INFO L225 Difference]: With dead ends: 1586 [2022-11-16 11:51:39,944 INFO L226 Difference]: Without dead ends: 1586 [2022-11-16 11:51:39,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:51:39,945 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:39,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 0 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:51:39,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2022-11-16 11:51:40,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1586. [2022-11-16 11:51:40,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1585 states have (on average 3.4757097791798106) internal successors, (5509), 1585 states have internal predecessors, (5509), 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) [2022-11-16 11:51:40,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 5509 transitions. [2022-11-16 11:51:40,024 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 5509 transitions. Word has length 32 [2022-11-16 11:51:40,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:40,025 INFO L495 AbstractCegarLoop]: Abstraction has 1586 states and 5509 transitions. [2022-11-16 11:51:40,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-11-16 11:51:40,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 5509 transitions. [2022-11-16 11:51:40,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:40,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:40,032 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] [2022-11-16 11:51:40,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:51:40,032 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:40,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:40,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1421877448, now seen corresponding path program 5 times [2022-11-16 11:51:40,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:40,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488796152] [2022-11-16 11:51:40,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:40,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:40,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:40,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:40,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488796152] [2022-11-16 11:51:40,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488796152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:40,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:40,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:51:40,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111179055] [2022-11-16 11:51:40,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:40,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:51:40,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:40,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:51:40,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:51:40,398 INFO L87 Difference]: Start difference. First operand 1586 states and 5509 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:40,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:40,773 INFO L93 Difference]: Finished difference Result 2042 states and 7038 transitions. [2022-11-16 11:51:40,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:51:40,773 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:40,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:40,781 INFO L225 Difference]: With dead ends: 2042 [2022-11-16 11:51:40,781 INFO L226 Difference]: Without dead ends: 2030 [2022-11-16 11:51:40,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:51:40,782 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 51 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:40,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 0 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:51:40,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2030 states. [2022-11-16 11:51:40,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2030 to 1634. [2022-11-16 11:51:40,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1633 states have (on average 3.4654011022657687) internal successors, (5659), 1633 states have internal predecessors, (5659), 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) [2022-11-16 11:51:40,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 5659 transitions. [2022-11-16 11:51:40,850 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 5659 transitions. Word has length 32 [2022-11-16 11:51:40,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:40,850 INFO L495 AbstractCegarLoop]: Abstraction has 1634 states and 5659 transitions. [2022-11-16 11:51:40,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:40,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 5659 transitions. [2022-11-16 11:51:40,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:40,857 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:40,857 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] [2022-11-16 11:51:40,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:51:40,858 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:40,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:40,860 INFO L85 PathProgramCache]: Analyzing trace with hash 114887380, now seen corresponding path program 6 times [2022-11-16 11:51:40,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:40,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146387032] [2022-11-16 11:51:40,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:40,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:41,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:41,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:41,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146387032] [2022-11-16 11:51:41,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146387032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:41,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:41,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:51:41,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713000505] [2022-11-16 11:51:41,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:41,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:51:41,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:41,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:51:41,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:51:41,250 INFO L87 Difference]: Start difference. First operand 1634 states and 5659 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:41,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:41,531 INFO L93 Difference]: Finished difference Result 1550 states and 5313 transitions. [2022-11-16 11:51:41,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:51:41,531 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:41,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:41,537 INFO L225 Difference]: With dead ends: 1550 [2022-11-16 11:51:41,537 INFO L226 Difference]: Without dead ends: 1514 [2022-11-16 11:51:41,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:51:41,538 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 36 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:41,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 0 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:51:41,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2022-11-16 11:51:41,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1510. [2022-11-16 11:51:41,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1509 states have (on average 3.441351888667992) internal successors, (5193), 1509 states have internal predecessors, (5193), 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) [2022-11-16 11:51:41,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 5193 transitions. [2022-11-16 11:51:41,580 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 5193 transitions. Word has length 32 [2022-11-16 11:51:41,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:41,580 INFO L495 AbstractCegarLoop]: Abstraction has 1510 states and 5193 transitions. [2022-11-16 11:51:41,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:41,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 5193 transitions. [2022-11-16 11:51:41,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:41,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:41,586 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] [2022-11-16 11:51:41,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:51:41,586 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:41,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:41,587 INFO L85 PathProgramCache]: Analyzing trace with hash 693401204, now seen corresponding path program 7 times [2022-11-16 11:51:41,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:41,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136748543] [2022-11-16 11:51:41,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:41,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:41,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:41,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:41,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136748543] [2022-11-16 11:51:41,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136748543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:41,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:41,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:51:41,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455723581] [2022-11-16 11:51:41,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:41,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:51:41,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:41,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:51:41,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:51:41,863 INFO L87 Difference]: Start difference. First operand 1510 states and 5193 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:51:42,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:42,094 INFO L93 Difference]: Finished difference Result 1550 states and 5283 transitions. [2022-11-16 11:51:42,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:51:42,095 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:42,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:42,099 INFO L225 Difference]: With dead ends: 1550 [2022-11-16 11:51:42,100 INFO L226 Difference]: Without dead ends: 1478 [2022-11-16 11:51:42,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:51:42,101 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:42,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 0 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:51:42,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2022-11-16 11:51:42,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1478. [2022-11-16 11:51:42,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1477 states have (on average 3.4522681110358837) internal successors, (5099), 1477 states have internal predecessors, (5099), 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) [2022-11-16 11:51:42,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 5099 transitions. [2022-11-16 11:51:42,142 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 5099 transitions. Word has length 32 [2022-11-16 11:51:42,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:42,142 INFO L495 AbstractCegarLoop]: Abstraction has 1478 states and 5099 transitions. [2022-11-16 11:51:42,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:51:42,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 5099 transitions. [2022-11-16 11:51:42,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:42,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:42,147 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] [2022-11-16 11:51:42,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:51:42,148 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:42,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:42,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1674924804, now seen corresponding path program 8 times [2022-11-16 11:51:42,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:42,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152957196] [2022-11-16 11:51:42,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:42,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:42,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:42,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:42,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152957196] [2022-11-16 11:51:42,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152957196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:42,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:42,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:51:42,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881189563] [2022-11-16 11:51:42,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:42,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:51:42,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:42,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:51:42,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:51:42,483 INFO L87 Difference]: Start difference. First operand 1478 states and 5099 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:51:43,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:43,133 INFO L93 Difference]: Finished difference Result 2554 states and 8587 transitions. [2022-11-16 11:51:43,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:51:43,135 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:43,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:43,144 INFO L225 Difference]: With dead ends: 2554 [2022-11-16 11:51:43,145 INFO L226 Difference]: Without dead ends: 2554 [2022-11-16 11:51:43,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:51:43,146 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 82 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:43,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 0 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:51:43,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2554 states. [2022-11-16 11:51:43,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2554 to 1702. [2022-11-16 11:51:43,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1702 states, 1701 states have (on average 3.4638447971781305) internal successors, (5892), 1701 states have internal predecessors, (5892), 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) [2022-11-16 11:51:43,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1702 states to 1702 states and 5892 transitions. [2022-11-16 11:51:43,204 INFO L78 Accepts]: Start accepts. Automaton has 1702 states and 5892 transitions. Word has length 32 [2022-11-16 11:51:43,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:43,205 INFO L495 AbstractCegarLoop]: Abstraction has 1702 states and 5892 transitions. [2022-11-16 11:51:43,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:51:43,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1702 states and 5892 transitions. [2022-11-16 11:51:43,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:43,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:43,211 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] [2022-11-16 11:51:43,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:51:43,211 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:43,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:43,212 INFO L85 PathProgramCache]: Analyzing trace with hash 710641930, now seen corresponding path program 9 times [2022-11-16 11:51:43,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:43,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885589272] [2022-11-16 11:51:43,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:43,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:43,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:43,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:43,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885589272] [2022-11-16 11:51:43,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885589272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:43,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:43,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:51:43,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890364230] [2022-11-16 11:51:43,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:43,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:51:43,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:43,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:51:43,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:51:43,518 INFO L87 Difference]: Start difference. First operand 1702 states and 5892 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-11-16 11:51:43,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:43,727 INFO L93 Difference]: Finished difference Result 1686 states and 5728 transitions. [2022-11-16 11:51:43,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:51:43,728 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:43,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:43,734 INFO L225 Difference]: With dead ends: 1686 [2022-11-16 11:51:43,734 INFO L226 Difference]: Without dead ends: 1614 [2022-11-16 11:51:43,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:51:43,735 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 32 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:43,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 0 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:51:43,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2022-11-16 11:51:43,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1614. [2022-11-16 11:51:43,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1613 states have (on average 3.445753254804712) internal successors, (5558), 1613 states have internal predecessors, (5558), 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) [2022-11-16 11:51:43,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 5558 transitions. [2022-11-16 11:51:43,806 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 5558 transitions. Word has length 32 [2022-11-16 11:51:43,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:43,806 INFO L495 AbstractCegarLoop]: Abstraction has 1614 states and 5558 transitions. [2022-11-16 11:51:43,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-11-16 11:51:43,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 5558 transitions. [2022-11-16 11:51:43,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:43,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:43,813 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] [2022-11-16 11:51:43,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 11:51:43,813 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:43,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:43,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1257244124, now seen corresponding path program 10 times [2022-11-16 11:51:43,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:43,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232278248] [2022-11-16 11:51:43,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:43,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:44,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:44,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:44,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232278248] [2022-11-16 11:51:44,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232278248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:44,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:44,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:51:44,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265047779] [2022-11-16 11:51:44,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:44,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:51:44,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:44,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:51:44,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:51:44,085 INFO L87 Difference]: Start difference. First operand 1614 states and 5558 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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) [2022-11-16 11:51:44,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:44,257 INFO L93 Difference]: Finished difference Result 1588 states and 5468 transitions. [2022-11-16 11:51:44,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:51:44,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:44,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:44,264 INFO L225 Difference]: With dead ends: 1588 [2022-11-16 11:51:44,264 INFO L226 Difference]: Without dead ends: 1588 [2022-11-16 11:51:44,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:51:44,265 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:44,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 0 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:51:44,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2022-11-16 11:51:44,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 1588. [2022-11-16 11:51:44,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1587 states have (on average 3.445494643982357) internal successors, (5468), 1587 states have internal predecessors, (5468), 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) [2022-11-16 11:51:44,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 5468 transitions. [2022-11-16 11:51:44,346 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 5468 transitions. Word has length 32 [2022-11-16 11:51:44,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:44,348 INFO L495 AbstractCegarLoop]: Abstraction has 1588 states and 5468 transitions. [2022-11-16 11:51:44,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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) [2022-11-16 11:51:44,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 5468 transitions. [2022-11-16 11:51:44,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:44,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:44,355 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] [2022-11-16 11:51:44,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 11:51:44,357 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:44,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:44,358 INFO L85 PathProgramCache]: Analyzing trace with hash -2111445768, now seen corresponding path program 11 times [2022-11-16 11:51:44,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:44,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974553466] [2022-11-16 11:51:44,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:44,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:44,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:44,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:44,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974553466] [2022-11-16 11:51:44,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974553466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:44,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:44,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:51:44,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306383846] [2022-11-16 11:51:44,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:44,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:51:44,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:44,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:51:44,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:51:44,803 INFO L87 Difference]: Start difference. First operand 1588 states and 5468 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:51:45,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:45,126 INFO L93 Difference]: Finished difference Result 1670 states and 5698 transitions. [2022-11-16 11:51:45,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:51:45,127 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:45,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:45,132 INFO L225 Difference]: With dead ends: 1670 [2022-11-16 11:51:45,133 INFO L226 Difference]: Without dead ends: 1670 [2022-11-16 11:51:45,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:51:45,133 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:45,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 0 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:51:45,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2022-11-16 11:51:45,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1670. [2022-11-16 11:51:45,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 1669 states have (on average 3.414020371479928) internal successors, (5698), 1669 states have internal predecessors, (5698), 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) [2022-11-16 11:51:45,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 5698 transitions. [2022-11-16 11:51:45,182 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 5698 transitions. Word has length 32 [2022-11-16 11:51:45,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:45,182 INFO L495 AbstractCegarLoop]: Abstraction has 1670 states and 5698 transitions. [2022-11-16 11:51:45,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:51:45,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 5698 transitions. [2022-11-16 11:51:45,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:45,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:45,188 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] [2022-11-16 11:51:45,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 11:51:45,189 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:45,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:45,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1871292986, now seen corresponding path program 12 times [2022-11-16 11:51:45,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:45,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008842977] [2022-11-16 11:51:45,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:45,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:45,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:45,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:45,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008842977] [2022-11-16 11:51:45,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008842977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:45,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:45,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:51:45,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303894768] [2022-11-16 11:51:45,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:45,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:51:45,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:45,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:51:45,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:51:45,555 INFO L87 Difference]: Start difference. First operand 1670 states and 5698 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:45,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:45,820 INFO L93 Difference]: Finished difference Result 1770 states and 5944 transitions. [2022-11-16 11:51:45,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:51:45,821 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:45,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:45,826 INFO L225 Difference]: With dead ends: 1770 [2022-11-16 11:51:45,827 INFO L226 Difference]: Without dead ends: 1752 [2022-11-16 11:51:45,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:51:45,827 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 32 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:45,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 0 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:51:45,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2022-11-16 11:51:45,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1730. [2022-11-16 11:51:45,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1729 states have (on average 3.3828802776171196) internal successors, (5849), 1729 states have internal predecessors, (5849), 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) [2022-11-16 11:51:45,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 5849 transitions. [2022-11-16 11:51:45,876 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 5849 transitions. Word has length 32 [2022-11-16 11:51:45,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:45,876 INFO L495 AbstractCegarLoop]: Abstraction has 1730 states and 5849 transitions. [2022-11-16 11:51:45,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:45,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 5849 transitions. [2022-11-16 11:51:45,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:45,882 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:45,882 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] [2022-11-16 11:51:45,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 11:51:45,883 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:45,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:45,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1877089144, now seen corresponding path program 13 times [2022-11-16 11:51:45,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:45,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017171938] [2022-11-16 11:51:45,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:45,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:46,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:46,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:46,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017171938] [2022-11-16 11:51:46,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017171938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:46,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:46,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:51:46,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844875012] [2022-11-16 11:51:46,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:46,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:51:46,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:46,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:51:46,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:51:46,300 INFO L87 Difference]: Start difference. First operand 1730 states and 5849 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:46,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:46,593 INFO L93 Difference]: Finished difference Result 1788 states and 5978 transitions. [2022-11-16 11:51:46,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:51:46,594 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:46,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:46,600 INFO L225 Difference]: With dead ends: 1788 [2022-11-16 11:51:46,600 INFO L226 Difference]: Without dead ends: 1782 [2022-11-16 11:51:46,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:51:46,601 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:46,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 0 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:51:46,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1782 states. [2022-11-16 11:51:46,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1782 to 1752. [2022-11-16 11:51:46,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1752 states, 1751 states have (on average 3.3717875499714447) internal successors, (5904), 1751 states have internal predecessors, (5904), 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) [2022-11-16 11:51:46,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1752 states to 1752 states and 5904 transitions. [2022-11-16 11:51:46,655 INFO L78 Accepts]: Start accepts. Automaton has 1752 states and 5904 transitions. Word has length 32 [2022-11-16 11:51:46,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:46,655 INFO L495 AbstractCegarLoop]: Abstraction has 1752 states and 5904 transitions. [2022-11-16 11:51:46,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:46,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1752 states and 5904 transitions. [2022-11-16 11:51:46,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:46,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:46,661 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] [2022-11-16 11:51:46,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 11:51:46,662 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:46,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:46,662 INFO L85 PathProgramCache]: Analyzing trace with hash -538373868, now seen corresponding path program 14 times [2022-11-16 11:51:46,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:46,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498268967] [2022-11-16 11:51:46,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:46,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:47,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:47,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:47,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498268967] [2022-11-16 11:51:47,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498268967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:47,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:47,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:51:47,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309399127] [2022-11-16 11:51:47,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:47,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:51:47,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:47,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:51:47,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:51:47,023 INFO L87 Difference]: Start difference. First operand 1752 states and 5904 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:51:47,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:47,391 INFO L93 Difference]: Finished difference Result 1836 states and 6158 transitions. [2022-11-16 11:51:47,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:51:47,391 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:47,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:47,398 INFO L225 Difference]: With dead ends: 1836 [2022-11-16 11:51:47,398 INFO L226 Difference]: Without dead ends: 1826 [2022-11-16 11:51:47,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:51:47,399 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:47,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 0 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:51:47,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2022-11-16 11:51:47,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1758. [2022-11-16 11:51:47,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1757 states have (on average 3.375640295959021) internal successors, (5931), 1757 states have internal predecessors, (5931), 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) [2022-11-16 11:51:47,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 5931 transitions. [2022-11-16 11:51:47,454 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 5931 transitions. Word has length 32 [2022-11-16 11:51:47,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:47,454 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 5931 transitions. [2022-11-16 11:51:47,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:51:47,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 5931 transitions. [2022-11-16 11:51:47,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:47,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:47,461 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] [2022-11-16 11:51:47,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 11:51:47,462 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:47,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:47,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1855064626, now seen corresponding path program 15 times [2022-11-16 11:51:47,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:47,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346853352] [2022-11-16 11:51:47,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:47,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:47,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:47,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:47,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346853352] [2022-11-16 11:51:47,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346853352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:47,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:47,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:51:47,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353855276] [2022-11-16 11:51:47,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:47,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:51:47,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:47,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:51:47,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:51:47,817 INFO L87 Difference]: Start difference. First operand 1758 states and 5931 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:48,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:48,139 INFO L93 Difference]: Finished difference Result 1918 states and 6428 transitions. [2022-11-16 11:51:48,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:51:48,140 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:48,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:48,146 INFO L225 Difference]: With dead ends: 1918 [2022-11-16 11:51:48,146 INFO L226 Difference]: Without dead ends: 1906 [2022-11-16 11:51:48,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:51:48,147 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:48,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 0 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:51:48,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2022-11-16 11:51:48,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1776. [2022-11-16 11:51:48,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1776 states, 1775 states have (on average 3.3780281690140845) internal successors, (5996), 1775 states have internal predecessors, (5996), 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) [2022-11-16 11:51:48,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 5996 transitions. [2022-11-16 11:51:48,194 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 5996 transitions. Word has length 32 [2022-11-16 11:51:48,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:48,195 INFO L495 AbstractCegarLoop]: Abstraction has 1776 states and 5996 transitions. [2022-11-16 11:51:48,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:48,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 5996 transitions. [2022-11-16 11:51:48,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:48,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:48,200 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] [2022-11-16 11:51:48,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 11:51:48,201 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:48,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:48,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1838676556, now seen corresponding path program 16 times [2022-11-16 11:51:48,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:48,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765661392] [2022-11-16 11:51:48,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:48,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:48,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:48,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:48,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765661392] [2022-11-16 11:51:48,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765661392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:48,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:48,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:51:48,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708321978] [2022-11-16 11:51:48,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:48,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:51:48,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:48,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:51:48,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:51:48,507 INFO L87 Difference]: Start difference. First operand 1776 states and 5996 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:48,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:48,791 INFO L93 Difference]: Finished difference Result 1868 states and 6289 transitions. [2022-11-16 11:51:48,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:51:48,792 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:48,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:48,799 INFO L225 Difference]: With dead ends: 1868 [2022-11-16 11:51:48,799 INFO L226 Difference]: Without dead ends: 1842 [2022-11-16 11:51:48,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:51:48,800 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:48,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 0 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:51:48,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2022-11-16 11:51:48,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 1770. [2022-11-16 11:51:48,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1769 states have (on average 3.3951384963256075) internal successors, (6006), 1769 states have internal predecessors, (6006), 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) [2022-11-16 11:51:48,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 6006 transitions. [2022-11-16 11:51:48,848 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 6006 transitions. Word has length 32 [2022-11-16 11:51:48,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:48,849 INFO L495 AbstractCegarLoop]: Abstraction has 1770 states and 6006 transitions. [2022-11-16 11:51:48,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:48,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 6006 transitions. [2022-11-16 11:51:48,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:48,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:48,855 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] [2022-11-16 11:51:48,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 11:51:48,855 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:48,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:48,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1315747226, now seen corresponding path program 17 times [2022-11-16 11:51:48,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:48,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313375660] [2022-11-16 11:51:48,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:48,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:49,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:49,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:49,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313375660] [2022-11-16 11:51:49,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313375660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:49,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:49,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:51:49,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514156349] [2022-11-16 11:51:49,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:49,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:51:49,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:49,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:51:49,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:51:49,148 INFO L87 Difference]: Start difference. First operand 1770 states and 6006 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:51:49,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:49,408 INFO L93 Difference]: Finished difference Result 1890 states and 6302 transitions. [2022-11-16 11:51:49,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:51:49,408 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:49,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:49,413 INFO L225 Difference]: With dead ends: 1890 [2022-11-16 11:51:49,414 INFO L226 Difference]: Without dead ends: 1872 [2022-11-16 11:51:49,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:51:49,414 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:49,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 0 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:51:49,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2022-11-16 11:51:49,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1776. [2022-11-16 11:51:49,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1776 states, 1775 states have (on average 3.387605633802817) internal successors, (6013), 1775 states have internal predecessors, (6013), 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) [2022-11-16 11:51:49,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 6013 transitions. [2022-11-16 11:51:49,488 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 6013 transitions. Word has length 32 [2022-11-16 11:51:49,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:49,489 INFO L495 AbstractCegarLoop]: Abstraction has 1776 states and 6013 transitions. [2022-11-16 11:51:49,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:51:49,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 6013 transitions. [2022-11-16 11:51:49,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:49,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:49,496 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] [2022-11-16 11:51:49,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-16 11:51:49,497 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:49,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:49,497 INFO L85 PathProgramCache]: Analyzing trace with hash 433609350, now seen corresponding path program 18 times [2022-11-16 11:51:49,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:49,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198780912] [2022-11-16 11:51:49,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:49,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:49,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:49,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:49,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198780912] [2022-11-16 11:51:49,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198780912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:49,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:49,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:51:49,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283398829] [2022-11-16 11:51:49,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:49,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:51:49,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:49,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:51:49,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:51:49,886 INFO L87 Difference]: Start difference. First operand 1776 states and 6013 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:51:50,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:50,310 INFO L93 Difference]: Finished difference Result 1890 states and 6311 transitions. [2022-11-16 11:51:50,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:51:50,311 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:50,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:50,316 INFO L225 Difference]: With dead ends: 1890 [2022-11-16 11:51:50,316 INFO L226 Difference]: Without dead ends: 1880 [2022-11-16 11:51:50,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:51:50,317 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:50,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 0 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:51:50,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2022-11-16 11:51:50,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1790. [2022-11-16 11:51:50,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1790 states, 1789 states have (on average 3.3873672442705423) internal successors, (6060), 1789 states have internal predecessors, (6060), 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) [2022-11-16 11:51:50,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 6060 transitions. [2022-11-16 11:51:50,364 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 6060 transitions. Word has length 32 [2022-11-16 11:51:50,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:50,365 INFO L495 AbstractCegarLoop]: Abstraction has 1790 states and 6060 transitions. [2022-11-16 11:51:50,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:51:50,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 6060 transitions. [2022-11-16 11:51:50,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:50,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:50,371 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] [2022-11-16 11:51:50,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-16 11:51:50,371 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:50,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:50,372 INFO L85 PathProgramCache]: Analyzing trace with hash 143451158, now seen corresponding path program 19 times [2022-11-16 11:51:50,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:50,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370743634] [2022-11-16 11:51:50,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:50,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:50,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:50,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:50,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370743634] [2022-11-16 11:51:50,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370743634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:50,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:50,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:51:50,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700697432] [2022-11-16 11:51:50,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:50,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:51:50,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:50,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:51:50,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:51:50,671 INFO L87 Difference]: Start difference. First operand 1790 states and 6060 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:50,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:50,981 INFO L93 Difference]: Finished difference Result 1852 states and 6203 transitions. [2022-11-16 11:51:50,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:51:50,982 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:50,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:50,987 INFO L225 Difference]: With dead ends: 1852 [2022-11-16 11:51:50,987 INFO L226 Difference]: Without dead ends: 1824 [2022-11-16 11:51:50,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:51:50,988 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:50,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 0 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:51:50,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2022-11-16 11:51:51,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1754. [2022-11-16 11:51:51,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1754 states, 1753 states have (on average 3.3981745579007416) internal successors, (5957), 1753 states have internal predecessors, (5957), 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) [2022-11-16 11:51:51,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 5957 transitions. [2022-11-16 11:51:51,055 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 5957 transitions. Word has length 32 [2022-11-16 11:51:51,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:51,055 INFO L495 AbstractCegarLoop]: Abstraction has 1754 states and 5957 transitions. [2022-11-16 11:51:51,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:51,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 5957 transitions. [2022-11-16 11:51:51,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:51,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:51,061 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] [2022-11-16 11:51:51,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-16 11:51:51,061 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:51,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:51,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1527518156, now seen corresponding path program 20 times [2022-11-16 11:51:51,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:51,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546515159] [2022-11-16 11:51:51,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:51,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:51,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:51,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:51,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546515159] [2022-11-16 11:51:51,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546515159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:51,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:51,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:51:51,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772042388] [2022-11-16 11:51:51,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:51,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:51:51,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:51,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:51:51,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:51:51,377 INFO L87 Difference]: Start difference. First operand 1754 states and 5957 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:51:51,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:51,607 INFO L93 Difference]: Finished difference Result 1768 states and 5932 transitions. [2022-11-16 11:51:51,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:51:51,608 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:51,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:51,612 INFO L225 Difference]: With dead ends: 1768 [2022-11-16 11:51:51,613 INFO L226 Difference]: Without dead ends: 1744 [2022-11-16 11:51:51,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:51:51,613 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:51,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 0 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:51:51,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-11-16 11:51:51,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1692. [2022-11-16 11:51:51,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1691 states have (on average 3.40153755174453) internal successors, (5752), 1691 states have internal predecessors, (5752), 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) [2022-11-16 11:51:51,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 5752 transitions. [2022-11-16 11:51:51,664 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 5752 transitions. Word has length 32 [2022-11-16 11:51:51,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:51,665 INFO L495 AbstractCegarLoop]: Abstraction has 1692 states and 5752 transitions. [2022-11-16 11:51:51,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:51:51,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 5752 transitions. [2022-11-16 11:51:51,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:51,672 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:51,672 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] [2022-11-16 11:51:51,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-16 11:51:51,672 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:51,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:51,673 INFO L85 PathProgramCache]: Analyzing trace with hash 776907860, now seen corresponding path program 21 times [2022-11-16 11:51:51,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:51,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715556021] [2022-11-16 11:51:51,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:51,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:51,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:51,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:51,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715556021] [2022-11-16 11:51:51,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715556021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:51,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:51,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:51:51,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107371926] [2022-11-16 11:51:51,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:51,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:51:51,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:51,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:51:51,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:51:51,987 INFO L87 Difference]: Start difference. First operand 1692 states and 5752 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:52,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:52,330 INFO L93 Difference]: Finished difference Result 3126 states and 10474 transitions. [2022-11-16 11:51:52,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:51:52,331 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:52,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:52,340 INFO L225 Difference]: With dead ends: 3126 [2022-11-16 11:51:52,341 INFO L226 Difference]: Without dead ends: 3126 [2022-11-16 11:51:52,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:51:52,342 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 66 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:52,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 0 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:51:52,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3126 states. [2022-11-16 11:51:52,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3126 to 1956. [2022-11-16 11:51:52,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1956 states, 1955 states have (on average 3.41074168797954) internal successors, (6668), 1955 states have internal predecessors, (6668), 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) [2022-11-16 11:51:52,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 6668 transitions. [2022-11-16 11:51:52,438 INFO L78 Accepts]: Start accepts. Automaton has 1956 states and 6668 transitions. Word has length 32 [2022-11-16 11:51:52,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:52,438 INFO L495 AbstractCegarLoop]: Abstraction has 1956 states and 6668 transitions. [2022-11-16 11:51:52,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:52,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 6668 transitions. [2022-11-16 11:51:52,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:52,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:52,444 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] [2022-11-16 11:51:52,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-16 11:51:52,445 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:52,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:52,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1401173224, now seen corresponding path program 22 times [2022-11-16 11:51:52,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:52,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713979971] [2022-11-16 11:51:52,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:52,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:52,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:52,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:52,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713979971] [2022-11-16 11:51:52,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713979971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:52,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:52,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:51:52,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3883059] [2022-11-16 11:51:52,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:52,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:51:52,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:52,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:51:52,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:51:52,700 INFO L87 Difference]: Start difference. First operand 1956 states and 6668 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:51:52,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:52,974 INFO L93 Difference]: Finished difference Result 2126 states and 7192 transitions. [2022-11-16 11:51:52,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:51:52,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:52,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:52,980 INFO L225 Difference]: With dead ends: 2126 [2022-11-16 11:51:52,980 INFO L226 Difference]: Without dead ends: 2114 [2022-11-16 11:51:52,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:51:52,981 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:52,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 0 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:51:52,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2114 states. [2022-11-16 11:51:53,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2114 to 2006. [2022-11-16 11:51:53,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2006 states, 2005 states have (on average 3.408478802992519) internal successors, (6834), 2005 states have internal predecessors, (6834), 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) [2022-11-16 11:51:53,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 6834 transitions. [2022-11-16 11:51:53,034 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 6834 transitions. Word has length 32 [2022-11-16 11:51:53,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:53,035 INFO L495 AbstractCegarLoop]: Abstraction has 2006 states and 6834 transitions. [2022-11-16 11:51:53,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:51:53,035 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 6834 transitions. [2022-11-16 11:51:53,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:53,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:53,040 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] [2022-11-16 11:51:53,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-16 11:51:53,040 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:53,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:53,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1860419906, now seen corresponding path program 23 times [2022-11-16 11:51:53,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:53,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237961599] [2022-11-16 11:51:53,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:53,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:53,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:53,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:53,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237961599] [2022-11-16 11:51:53,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237961599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:53,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:53,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:51:53,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250226291] [2022-11-16 11:51:53,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:53,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:51:53,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:53,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:51:53,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:51:53,312 INFO L87 Difference]: Start difference. First operand 2006 states and 6834 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:53,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:53,660 INFO L93 Difference]: Finished difference Result 3268 states and 10872 transitions. [2022-11-16 11:51:53,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:51:53,660 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:53,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:53,669 INFO L225 Difference]: With dead ends: 3268 [2022-11-16 11:51:53,669 INFO L226 Difference]: Without dead ends: 3252 [2022-11-16 11:51:53,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:51:53,670 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 63 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:53,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 0 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:51:53,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3252 states. [2022-11-16 11:51:53,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3252 to 2258. [2022-11-16 11:51:53,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2258 states, 2257 states have (on average 3.392556490917147) internal successors, (7657), 2257 states have internal predecessors, (7657), 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) [2022-11-16 11:51:53,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2258 states to 2258 states and 7657 transitions. [2022-11-16 11:51:53,788 INFO L78 Accepts]: Start accepts. Automaton has 2258 states and 7657 transitions. Word has length 32 [2022-11-16 11:51:53,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:53,789 INFO L495 AbstractCegarLoop]: Abstraction has 2258 states and 7657 transitions. [2022-11-16 11:51:53,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 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) [2022-11-16 11:51:53,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2258 states and 7657 transitions. [2022-11-16 11:51:53,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:53,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:53,795 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] [2022-11-16 11:51:53,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-16 11:51:53,795 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:53,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:53,796 INFO L85 PathProgramCache]: Analyzing trace with hash 275217590, now seen corresponding path program 24 times [2022-11-16 11:51:53,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:53,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987121320] [2022-11-16 11:51:53,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:53,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:54,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:54,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:54,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987121320] [2022-11-16 11:51:54,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987121320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:54,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:54,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:51:54,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306978671] [2022-11-16 11:51:54,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:54,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:51:54,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:54,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:51:54,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:51:54,037 INFO L87 Difference]: Start difference. First operand 2258 states and 7657 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:51:54,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:54,312 INFO L93 Difference]: Finished difference Result 2380 states and 7984 transitions. [2022-11-16 11:51:54,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:51:54,313 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:54,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:54,319 INFO L225 Difference]: With dead ends: 2380 [2022-11-16 11:51:54,319 INFO L226 Difference]: Without dead ends: 2352 [2022-11-16 11:51:54,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:51:54,320 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:54,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 0 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:51:54,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2022-11-16 11:51:54,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 2266. [2022-11-16 11:51:54,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2266 states, 2265 states have (on average 3.3885209713024285) internal successors, (7675), 2265 states have internal predecessors, (7675), 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) [2022-11-16 11:51:54,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2266 states to 2266 states and 7675 transitions. [2022-11-16 11:51:54,377 INFO L78 Accepts]: Start accepts. Automaton has 2266 states and 7675 transitions. Word has length 32 [2022-11-16 11:51:54,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:54,377 INFO L495 AbstractCegarLoop]: Abstraction has 2266 states and 7675 transitions. [2022-11-16 11:51:54,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:51:54,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2266 states and 7675 transitions. [2022-11-16 11:51:54,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:54,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:54,383 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] [2022-11-16 11:51:54,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-16 11:51:54,383 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:54,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:54,384 INFO L85 PathProgramCache]: Analyzing trace with hash -684083372, now seen corresponding path program 25 times [2022-11-16 11:51:54,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:54,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872866453] [2022-11-16 11:51:54,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:54,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:54,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:54,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:54,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872866453] [2022-11-16 11:51:54,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872866453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:54,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:54,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:51:54,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692862852] [2022-11-16 11:51:54,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:54,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:51:54,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:54,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:51:54,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:51:54,656 INFO L87 Difference]: Start difference. First operand 2266 states and 7675 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:51:54,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:54,900 INFO L93 Difference]: Finished difference Result 2338 states and 7801 transitions. [2022-11-16 11:51:54,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:51:54,901 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:54,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:54,907 INFO L225 Difference]: With dead ends: 2338 [2022-11-16 11:51:54,907 INFO L226 Difference]: Without dead ends: 2304 [2022-11-16 11:51:54,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:51:54,908 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:54,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 0 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:51:54,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2304 states. [2022-11-16 11:51:54,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2304 to 2194. [2022-11-16 11:51:54,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2194 states, 2193 states have (on average 3.372093023255814) internal successors, (7395), 2193 states have internal predecessors, (7395), 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) [2022-11-16 11:51:54,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 7395 transitions. [2022-11-16 11:51:54,969 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 7395 transitions. Word has length 32 [2022-11-16 11:51:54,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:54,969 INFO L495 AbstractCegarLoop]: Abstraction has 2194 states and 7395 transitions. [2022-11-16 11:51:54,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:51:54,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 7395 transitions. [2022-11-16 11:51:54,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:54,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:54,997 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] [2022-11-16 11:51:54,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-16 11:51:54,998 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:54,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:54,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1591057482, now seen corresponding path program 26 times [2022-11-16 11:51:55,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:55,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282121190] [2022-11-16 11:51:55,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:55,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:55,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:55,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:55,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282121190] [2022-11-16 11:51:55,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282121190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:55,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:55,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:51:55,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182224257] [2022-11-16 11:51:55,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:55,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:51:55,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:55,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:51:55,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:51:55,403 INFO L87 Difference]: Start difference. First operand 2194 states and 7395 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:51:55,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:55,763 INFO L93 Difference]: Finished difference Result 2250 states and 7519 transitions. [2022-11-16 11:51:55,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:51:55,763 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:55,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:55,769 INFO L225 Difference]: With dead ends: 2250 [2022-11-16 11:51:55,769 INFO L226 Difference]: Without dead ends: 2250 [2022-11-16 11:51:55,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:51:55,770 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:55,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 0 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:51:55,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2250 states. [2022-11-16 11:51:55,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2250 to 2206. [2022-11-16 11:51:55,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2205 states have (on average 3.363718820861678) internal successors, (7417), 2205 states have internal predecessors, (7417), 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) [2022-11-16 11:51:55,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 7417 transitions. [2022-11-16 11:51:55,825 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 7417 transitions. Word has length 32 [2022-11-16 11:51:55,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:55,826 INFO L495 AbstractCegarLoop]: Abstraction has 2206 states and 7417 transitions. [2022-11-16 11:51:55,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:51:55,826 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 7417 transitions. [2022-11-16 11:51:55,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:55,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:55,832 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] [2022-11-16 11:51:55,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-16 11:51:55,832 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:55,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:55,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1906057424, now seen corresponding path program 27 times [2022-11-16 11:51:55,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:55,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385379136] [2022-11-16 11:51:55,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:55,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:56,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:56,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:56,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385379136] [2022-11-16 11:51:56,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385379136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:56,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:56,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:51:56,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143733753] [2022-11-16 11:51:56,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:56,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:51:56,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:56,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:51:56,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:51:56,157 INFO L87 Difference]: Start difference. First operand 2206 states and 7417 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:51:56,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:56,523 INFO L93 Difference]: Finished difference Result 2314 states and 7657 transitions. [2022-11-16 11:51:56,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:51:56,524 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:56,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:56,530 INFO L225 Difference]: With dead ends: 2314 [2022-11-16 11:51:56,530 INFO L226 Difference]: Without dead ends: 2310 [2022-11-16 11:51:56,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:51:56,531 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 45 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:56,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 0 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:51:56,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2022-11-16 11:51:56,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 2286. [2022-11-16 11:51:56,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2286 states, 2285 states have (on average 3.322100656455142) internal successors, (7591), 2285 states have internal predecessors, (7591), 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) [2022-11-16 11:51:56,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2286 states to 2286 states and 7591 transitions. [2022-11-16 11:51:56,590 INFO L78 Accepts]: Start accepts. Automaton has 2286 states and 7591 transitions. Word has length 32 [2022-11-16 11:51:56,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:56,590 INFO L495 AbstractCegarLoop]: Abstraction has 2286 states and 7591 transitions. [2022-11-16 11:51:56,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:51:56,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2286 states and 7591 transitions. [2022-11-16 11:51:56,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:56,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:56,596 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] [2022-11-16 11:51:56,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-16 11:51:56,597 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:56,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:56,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1750301834, now seen corresponding path program 28 times [2022-11-16 11:51:56,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:56,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641683469] [2022-11-16 11:51:56,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:56,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:56,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:56,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:56,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641683469] [2022-11-16 11:51:56,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641683469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:56,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:56,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:51:56,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809015035] [2022-11-16 11:51:56,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:56,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:51:56,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:56,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:51:56,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:51:56,868 INFO L87 Difference]: Start difference. First operand 2286 states and 7591 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:51:57,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:57,096 INFO L93 Difference]: Finished difference Result 2280 states and 7543 transitions. [2022-11-16 11:51:57,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:51:57,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:57,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:57,102 INFO L225 Difference]: With dead ends: 2280 [2022-11-16 11:51:57,103 INFO L226 Difference]: Without dead ends: 2276 [2022-11-16 11:51:57,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:51:57,104 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:57,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 0 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:51:57,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2022-11-16 11:51:57,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 2276. [2022-11-16 11:51:57,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2276 states, 2275 states have (on average 3.312967032967033) internal successors, (7537), 2275 states have internal predecessors, (7537), 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) [2022-11-16 11:51:57,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2276 states to 2276 states and 7537 transitions. [2022-11-16 11:51:57,158 INFO L78 Accepts]: Start accepts. Automaton has 2276 states and 7537 transitions. Word has length 32 [2022-11-16 11:51:57,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:57,159 INFO L495 AbstractCegarLoop]: Abstraction has 2276 states and 7537 transitions. [2022-11-16 11:51:57,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:51:57,159 INFO L276 IsEmpty]: Start isEmpty. Operand 2276 states and 7537 transitions. [2022-11-16 11:51:57,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:57,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:57,164 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] [2022-11-16 11:51:57,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-16 11:51:57,165 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:57,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:57,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1363987358, now seen corresponding path program 29 times [2022-11-16 11:51:57,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:57,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577015563] [2022-11-16 11:51:57,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:57,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:57,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:57,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:57,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577015563] [2022-11-16 11:51:57,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577015563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:57,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:57,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:51:57,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635286502] [2022-11-16 11:51:57,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:57,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:51:57,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:57,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:51:57,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:51:57,456 INFO L87 Difference]: Start difference. First operand 2276 states and 7537 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:51:57,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:57,895 INFO L93 Difference]: Finished difference Result 2508 states and 8148 transitions. [2022-11-16 11:51:57,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:51:57,896 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:57,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:57,902 INFO L225 Difference]: With dead ends: 2508 [2022-11-16 11:51:57,903 INFO L226 Difference]: Without dead ends: 2496 [2022-11-16 11:51:57,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:51:57,903 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 47 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:57,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 0 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:51:57,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2022-11-16 11:51:57,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2284. [2022-11-16 11:51:57,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2284 states, 2283 states have (on average 3.3127463863337714) internal successors, (7563), 2283 states have internal predecessors, (7563), 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) [2022-11-16 11:51:57,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 7563 transitions. [2022-11-16 11:51:57,969 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 7563 transitions. Word has length 32 [2022-11-16 11:51:57,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:57,969 INFO L495 AbstractCegarLoop]: Abstraction has 2284 states and 7563 transitions. [2022-11-16 11:51:57,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:51:57,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 7563 transitions. [2022-11-16 11:51:57,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:57,975 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:57,975 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] [2022-11-16 11:51:57,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-16 11:51:57,976 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:57,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:57,976 INFO L85 PathProgramCache]: Analyzing trace with hash -841633398, now seen corresponding path program 30 times [2022-11-16 11:51:57,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:57,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874660908] [2022-11-16 11:51:57,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:57,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:58,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:58,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:58,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874660908] [2022-11-16 11:51:58,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874660908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:58,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:58,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:51:58,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378991075] [2022-11-16 11:51:58,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:58,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:51:58,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:58,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:51:58,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:51:58,305 INFO L87 Difference]: Start difference. First operand 2284 states and 7563 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:51:58,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:58,675 INFO L93 Difference]: Finished difference Result 2368 states and 7731 transitions. [2022-11-16 11:51:58,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:51:58,676 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:58,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:58,718 INFO L225 Difference]: With dead ends: 2368 [2022-11-16 11:51:58,718 INFO L226 Difference]: Without dead ends: 2354 [2022-11-16 11:51:58,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:51:58,718 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 41 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:58,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 0 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:51:58,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2022-11-16 11:51:58,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 2284. [2022-11-16 11:51:58,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2284 states, 2283 states have (on average 3.313622426631625) internal successors, (7565), 2283 states have internal predecessors, (7565), 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) [2022-11-16 11:51:58,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 7565 transitions. [2022-11-16 11:51:58,771 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 7565 transitions. Word has length 32 [2022-11-16 11:51:58,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:58,772 INFO L495 AbstractCegarLoop]: Abstraction has 2284 states and 7565 transitions. [2022-11-16 11:51:58,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:51:58,772 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 7565 transitions. [2022-11-16 11:51:58,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:58,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:58,779 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] [2022-11-16 11:51:58,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-16 11:51:58,780 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:58,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:58,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1531428468, now seen corresponding path program 31 times [2022-11-16 11:51:58,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:58,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552965352] [2022-11-16 11:51:58,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:58,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:59,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:59,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:59,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552965352] [2022-11-16 11:51:59,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552965352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:59,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:59,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:51:59,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523521301] [2022-11-16 11:51:59,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:59,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:51:59,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:59,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:51:59,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:51:59,067 INFO L87 Difference]: Start difference. First operand 2284 states and 7565 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:51:59,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:51:59,386 INFO L93 Difference]: Finished difference Result 2386 states and 7782 transitions. [2022-11-16 11:51:59,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:51:59,387 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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 32 [2022-11-16 11:51:59,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:51:59,393 INFO L225 Difference]: With dead ends: 2386 [2022-11-16 11:51:59,394 INFO L226 Difference]: Without dead ends: 2378 [2022-11-16 11:51:59,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:51:59,394 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 36 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:51:59,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 0 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:51:59,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2378 states. [2022-11-16 11:51:59,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2378 to 2316. [2022-11-16 11:51:59,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2316 states, 2315 states have (on average 3.2989200863930885) internal successors, (7637), 2315 states have internal predecessors, (7637), 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) [2022-11-16 11:51:59,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2316 states to 2316 states and 7637 transitions. [2022-11-16 11:51:59,452 INFO L78 Accepts]: Start accepts. Automaton has 2316 states and 7637 transitions. Word has length 32 [2022-11-16 11:51:59,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:51:59,452 INFO L495 AbstractCegarLoop]: Abstraction has 2316 states and 7637 transitions. [2022-11-16 11:51:59,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:51:59,453 INFO L276 IsEmpty]: Start isEmpty. Operand 2316 states and 7637 transitions. [2022-11-16 11:51:59,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:51:59,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:51:59,458 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] [2022-11-16 11:51:59,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-16 11:51:59,459 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:51:59,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:51:59,459 INFO L85 PathProgramCache]: Analyzing trace with hash -573138306, now seen corresponding path program 32 times [2022-11-16 11:51:59,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:51:59,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343194056] [2022-11-16 11:51:59,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:51:59,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:51:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:51:59,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:51:59,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:51:59,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343194056] [2022-11-16 11:51:59,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343194056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:51:59,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:51:59,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:51:59,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850216021] [2022-11-16 11:51:59,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:51:59,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:51:59,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:51:59,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:51:59,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:51:59,791 INFO L87 Difference]: Start difference. First operand 2316 states and 7637 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:00,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:00,191 INFO L93 Difference]: Finished difference Result 2358 states and 7718 transitions. [2022-11-16 11:52:00,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:52:00,192 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:00,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:00,198 INFO L225 Difference]: With dead ends: 2358 [2022-11-16 11:52:00,198 INFO L226 Difference]: Without dead ends: 2352 [2022-11-16 11:52:00,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:52:00,199 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 43 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:00,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 0 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:00,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2022-11-16 11:52:00,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 2320. [2022-11-16 11:52:00,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2320 states, 2319 states have (on average 3.2966796032772745) internal successors, (7645), 2319 states have internal predecessors, (7645), 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) [2022-11-16 11:52:00,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 7645 transitions. [2022-11-16 11:52:00,253 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 7645 transitions. Word has length 32 [2022-11-16 11:52:00,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:00,253 INFO L495 AbstractCegarLoop]: Abstraction has 2320 states and 7645 transitions. [2022-11-16 11:52:00,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:00,253 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 7645 transitions. [2022-11-16 11:52:00,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:00,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:00,259 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] [2022-11-16 11:52:00,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-16 11:52:00,260 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:00,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:00,260 INFO L85 PathProgramCache]: Analyzing trace with hash 932532444, now seen corresponding path program 33 times [2022-11-16 11:52:00,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:00,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245323330] [2022-11-16 11:52:00,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:00,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:00,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:00,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:00,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245323330] [2022-11-16 11:52:00,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245323330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:00,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:00,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:52:00,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146068781] [2022-11-16 11:52:00,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:00,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:00,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:00,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:00,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:00,570 INFO L87 Difference]: Start difference. First operand 2320 states and 7645 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:00,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:00,963 INFO L93 Difference]: Finished difference Result 2548 states and 8236 transitions. [2022-11-16 11:52:00,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:52:00,963 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:00,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:00,970 INFO L225 Difference]: With dead ends: 2548 [2022-11-16 11:52:00,970 INFO L226 Difference]: Without dead ends: 2536 [2022-11-16 11:52:00,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:52:00,971 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 55 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:00,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 0 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:00,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2536 states. [2022-11-16 11:52:01,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2536 to 2336. [2022-11-16 11:52:01,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2335 states have (on average 3.2997858672376874) internal successors, (7705), 2335 states have internal predecessors, (7705), 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) [2022-11-16 11:52:01,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 7705 transitions. [2022-11-16 11:52:01,031 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 7705 transitions. Word has length 32 [2022-11-16 11:52:01,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:01,031 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 7705 transitions. [2022-11-16 11:52:01,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:01,031 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 7705 transitions. [2022-11-16 11:52:01,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:01,039 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:01,040 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] [2022-11-16 11:52:01,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-16 11:52:01,040 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:01,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:01,041 INFO L85 PathProgramCache]: Analyzing trace with hash -145331818, now seen corresponding path program 34 times [2022-11-16 11:52:01,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:01,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058402902] [2022-11-16 11:52:01,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:01,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:01,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:01,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:01,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058402902] [2022-11-16 11:52:01,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058402902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:01,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:01,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:52:01,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68432103] [2022-11-16 11:52:01,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:01,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:52:01,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:01,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:52:01,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:52:01,308 INFO L87 Difference]: Start difference. First operand 2336 states and 7705 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:01,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:01,727 INFO L93 Difference]: Finished difference Result 2422 states and 7886 transitions. [2022-11-16 11:52:01,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:52:01,731 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:01,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:01,736 INFO L225 Difference]: With dead ends: 2422 [2022-11-16 11:52:01,737 INFO L226 Difference]: Without dead ends: 2410 [2022-11-16 11:52:01,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:52:01,737 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 50 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:01,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 0 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:01,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2410 states. [2022-11-16 11:52:01,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2410 to 2330. [2022-11-16 11:52:01,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2330 states, 2329 states have (on average 3.300987548303993) internal successors, (7688), 2329 states have internal predecessors, (7688), 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) [2022-11-16 11:52:01,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 7688 transitions. [2022-11-16 11:52:01,790 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 7688 transitions. Word has length 32 [2022-11-16 11:52:01,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:01,790 INFO L495 AbstractCegarLoop]: Abstraction has 2330 states and 7688 transitions. [2022-11-16 11:52:01,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:01,790 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 7688 transitions. [2022-11-16 11:52:01,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:01,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:01,796 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] [2022-11-16 11:52:01,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-16 11:52:01,796 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:01,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:01,796 INFO L85 PathProgramCache]: Analyzing trace with hash -2068125300, now seen corresponding path program 35 times [2022-11-16 11:52:01,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:01,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936933748] [2022-11-16 11:52:01,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:01,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:02,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:02,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:02,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936933748] [2022-11-16 11:52:02,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936933748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:02,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:02,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:52:02,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242836008] [2022-11-16 11:52:02,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:02,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:02,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:02,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:02,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:02,112 INFO L87 Difference]: Start difference. First operand 2330 states and 7688 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:02,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:02,695 INFO L93 Difference]: Finished difference Result 3404 states and 11149 transitions. [2022-11-16 11:52:02,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:52:02,696 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:02,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:02,706 INFO L225 Difference]: With dead ends: 3404 [2022-11-16 11:52:02,707 INFO L226 Difference]: Without dead ends: 3394 [2022-11-16 11:52:02,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:52:02,708 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 90 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:02,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 0 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:52:02,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3394 states. [2022-11-16 11:52:02,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3394 to 2424. [2022-11-16 11:52:02,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2424 states, 2423 states have (on average 3.312835328105654) internal successors, (8027), 2423 states have internal predecessors, (8027), 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) [2022-11-16 11:52:02,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2424 states to 2424 states and 8027 transitions. [2022-11-16 11:52:02,797 INFO L78 Accepts]: Start accepts. Automaton has 2424 states and 8027 transitions. Word has length 32 [2022-11-16 11:52:02,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:02,798 INFO L495 AbstractCegarLoop]: Abstraction has 2424 states and 8027 transitions. [2022-11-16 11:52:02,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:02,798 INFO L276 IsEmpty]: Start isEmpty. Operand 2424 states and 8027 transitions. [2022-11-16 11:52:02,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:02,803 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:02,803 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] [2022-11-16 11:52:02,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-16 11:52:02,804 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:02,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:02,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1135641030, now seen corresponding path program 36 times [2022-11-16 11:52:02,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:02,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287141807] [2022-11-16 11:52:02,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:02,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:03,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:03,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:03,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287141807] [2022-11-16 11:52:03,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287141807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:03,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:03,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:52:03,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933657512] [2022-11-16 11:52:03,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:03,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:52:03,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:03,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:52:03,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:52:03,132 INFO L87 Difference]: Start difference. First operand 2424 states and 8027 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:03,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:03,483 INFO L93 Difference]: Finished difference Result 3624 states and 11791 transitions. [2022-11-16 11:52:03,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:52:03,484 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:03,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:03,490 INFO L225 Difference]: With dead ends: 3624 [2022-11-16 11:52:03,490 INFO L226 Difference]: Without dead ends: 3624 [2022-11-16 11:52:03,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:03,491 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 64 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:03,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 0 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:03,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3624 states. [2022-11-16 11:52:03,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3624 to 2432. [2022-11-16 11:52:03,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2432 states, 2431 states have (on average 3.3109831345125462) internal successors, (8049), 2431 states have internal predecessors, (8049), 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) [2022-11-16 11:52:03,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 8049 transitions. [2022-11-16 11:52:03,560 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 8049 transitions. Word has length 32 [2022-11-16 11:52:03,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:03,560 INFO L495 AbstractCegarLoop]: Abstraction has 2432 states and 8049 transitions. [2022-11-16 11:52:03,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:03,560 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 8049 transitions. [2022-11-16 11:52:03,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:03,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:03,565 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] [2022-11-16 11:52:03,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-16 11:52:03,566 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:03,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:03,566 INFO L85 PathProgramCache]: Analyzing trace with hash -714178824, now seen corresponding path program 37 times [2022-11-16 11:52:03,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:03,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452168356] [2022-11-16 11:52:03,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:03,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:03,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:03,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:03,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452168356] [2022-11-16 11:52:03,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452168356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:03,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:03,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:52:03,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170093655] [2022-11-16 11:52:03,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:03,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:52:03,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:03,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:52:03,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:52:03,859 INFO L87 Difference]: Start difference. First operand 2432 states and 8049 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:04,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:04,252 INFO L93 Difference]: Finished difference Result 3740 states and 11966 transitions. [2022-11-16 11:52:04,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:52:04,253 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:04,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:04,262 INFO L225 Difference]: With dead ends: 3740 [2022-11-16 11:52:04,262 INFO L226 Difference]: Without dead ends: 3712 [2022-11-16 11:52:04,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:52:04,263 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 72 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:04,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 0 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:04,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3712 states. [2022-11-16 11:52:04,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3712 to 2794. [2022-11-16 11:52:04,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2793 states have (on average 3.267096312209094) internal successors, (9125), 2793 states have internal predecessors, (9125), 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) [2022-11-16 11:52:04,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 9125 transitions. [2022-11-16 11:52:04,366 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 9125 transitions. Word has length 32 [2022-11-16 11:52:04,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:04,367 INFO L495 AbstractCegarLoop]: Abstraction has 2794 states and 9125 transitions. [2022-11-16 11:52:04,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:04,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 9125 transitions. [2022-11-16 11:52:04,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:04,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:04,373 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] [2022-11-16 11:52:04,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-16 11:52:04,373 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:04,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:04,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1696651300, now seen corresponding path program 38 times [2022-11-16 11:52:04,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:04,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205798393] [2022-11-16 11:52:04,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:04,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:04,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:04,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:04,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205798393] [2022-11-16 11:52:04,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205798393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:04,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:04,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:52:04,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849351703] [2022-11-16 11:52:04,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:04,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:52:04,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:04,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:52:04,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:52:04,665 INFO L87 Difference]: Start difference. First operand 2794 states and 9125 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:05,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:05,041 INFO L93 Difference]: Finished difference Result 3834 states and 12131 transitions. [2022-11-16 11:52:05,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:52:05,041 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:05,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:05,048 INFO L225 Difference]: With dead ends: 3834 [2022-11-16 11:52:05,048 INFO L226 Difference]: Without dead ends: 3794 [2022-11-16 11:52:05,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:52:05,048 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:05,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 0 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:05,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3794 states. [2022-11-16 11:52:05,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3794 to 2948. [2022-11-16 11:52:05,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2948 states, 2947 states have (on average 3.231421784865965) internal successors, (9523), 2947 states have internal predecessors, (9523), 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) [2022-11-16 11:52:05,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 9523 transitions. [2022-11-16 11:52:05,113 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 9523 transitions. Word has length 32 [2022-11-16 11:52:05,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:05,113 INFO L495 AbstractCegarLoop]: Abstraction has 2948 states and 9523 transitions. [2022-11-16 11:52:05,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:05,114 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 9523 transitions. [2022-11-16 11:52:05,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:05,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:05,118 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] [2022-11-16 11:52:05,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-16 11:52:05,118 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:05,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:05,119 INFO L85 PathProgramCache]: Analyzing trace with hash 525003352, now seen corresponding path program 39 times [2022-11-16 11:52:05,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:05,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257516204] [2022-11-16 11:52:05,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:05,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:05,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:05,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:05,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257516204] [2022-11-16 11:52:05,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257516204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:05,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:05,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:52:05,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558173285] [2022-11-16 11:52:05,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:05,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:52:05,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:05,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:52:05,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:52:05,413 INFO L87 Difference]: Start difference. First operand 2948 states and 9523 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:05,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:05,779 INFO L93 Difference]: Finished difference Result 3052 states and 9749 transitions. [2022-11-16 11:52:05,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:52:05,779 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:05,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:05,787 INFO L225 Difference]: With dead ends: 3052 [2022-11-16 11:52:05,787 INFO L226 Difference]: Without dead ends: 3028 [2022-11-16 11:52:05,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:52:05,787 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 47 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:05,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 0 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:05,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3028 states. [2022-11-16 11:52:05,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3028 to 2936. [2022-11-16 11:52:05,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2935 states have (on average 3.236456558773424) internal successors, (9499), 2935 states have internal predecessors, (9499), 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) [2022-11-16 11:52:05,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 9499 transitions. [2022-11-16 11:52:05,850 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 9499 transitions. Word has length 32 [2022-11-16 11:52:05,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:05,850 INFO L495 AbstractCegarLoop]: Abstraction has 2936 states and 9499 transitions. [2022-11-16 11:52:05,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:05,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 9499 transitions. [2022-11-16 11:52:05,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:05,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:05,856 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] [2022-11-16 11:52:05,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-16 11:52:05,856 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:05,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:05,857 INFO L85 PathProgramCache]: Analyzing trace with hash -887712860, now seen corresponding path program 40 times [2022-11-16 11:52:05,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:05,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63578418] [2022-11-16 11:52:05,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:05,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:06,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:06,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:06,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63578418] [2022-11-16 11:52:06,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63578418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:06,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:06,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:52:06,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125896341] [2022-11-16 11:52:06,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:06,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:52:06,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:06,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:52:06,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:52:06,211 INFO L87 Difference]: Start difference. First operand 2936 states and 9499 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:06,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:06,542 INFO L93 Difference]: Finished difference Result 2984 states and 9599 transitions. [2022-11-16 11:52:06,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:52:06,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:06,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:06,551 INFO L225 Difference]: With dead ends: 2984 [2022-11-16 11:52:06,551 INFO L226 Difference]: Without dead ends: 2984 [2022-11-16 11:52:06,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:06,552 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:06,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 0 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:06,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2022-11-16 11:52:06,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 2984. [2022-11-16 11:52:06,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2984 states, 2983 states have (on average 3.217901441501844) internal successors, (9599), 2983 states have internal predecessors, (9599), 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) [2022-11-16 11:52:06,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2984 states to 2984 states and 9599 transitions. [2022-11-16 11:52:06,615 INFO L78 Accepts]: Start accepts. Automaton has 2984 states and 9599 transitions. Word has length 32 [2022-11-16 11:52:06,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:06,615 INFO L495 AbstractCegarLoop]: Abstraction has 2984 states and 9599 transitions. [2022-11-16 11:52:06,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:06,616 INFO L276 IsEmpty]: Start isEmpty. Operand 2984 states and 9599 transitions. [2022-11-16 11:52:06,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:06,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:06,622 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] [2022-11-16 11:52:06,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-16 11:52:06,622 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:06,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:06,623 INFO L85 PathProgramCache]: Analyzing trace with hash -416282562, now seen corresponding path program 41 times [2022-11-16 11:52:06,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:06,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870528176] [2022-11-16 11:52:06,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:06,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:06,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:06,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:06,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870528176] [2022-11-16 11:52:06,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870528176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:06,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:06,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:06,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046165925] [2022-11-16 11:52:06,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:06,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:06,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:06,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:06,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:06,962 INFO L87 Difference]: Start difference. First operand 2984 states and 9599 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:07,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:07,469 INFO L93 Difference]: Finished difference Result 3064 states and 9753 transitions. [2022-11-16 11:52:07,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:52:07,469 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:07,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:07,475 INFO L225 Difference]: With dead ends: 3064 [2022-11-16 11:52:07,475 INFO L226 Difference]: Without dead ends: 3048 [2022-11-16 11:52:07,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:52:07,476 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 37 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:07,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 0 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:07,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3048 states. [2022-11-16 11:52:07,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3048 to 2992. [2022-11-16 11:52:07,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2992 states, 2991 states have (on average 3.211969241056503) internal successors, (9607), 2991 states have internal predecessors, (9607), 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) [2022-11-16 11:52:07,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2992 states to 2992 states and 9607 transitions. [2022-11-16 11:52:07,534 INFO L78 Accepts]: Start accepts. Automaton has 2992 states and 9607 transitions. Word has length 32 [2022-11-16 11:52:07,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:07,534 INFO L495 AbstractCegarLoop]: Abstraction has 2992 states and 9607 transitions. [2022-11-16 11:52:07,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:07,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2992 states and 9607 transitions. [2022-11-16 11:52:07,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:07,540 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:07,540 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] [2022-11-16 11:52:07,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-16 11:52:07,540 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:07,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:07,541 INFO L85 PathProgramCache]: Analyzing trace with hash -2119688664, now seen corresponding path program 42 times [2022-11-16 11:52:07,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:07,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654091298] [2022-11-16 11:52:07,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:07,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:07,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:07,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:07,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654091298] [2022-11-16 11:52:07,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654091298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:07,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:07,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:07,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507464602] [2022-11-16 11:52:07,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:07,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:07,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:07,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:07,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:07,887 INFO L87 Difference]: Start difference. First operand 2992 states and 9607 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:08,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:08,435 INFO L93 Difference]: Finished difference Result 3288 states and 10314 transitions. [2022-11-16 11:52:08,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:52:08,437 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:08,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:08,445 INFO L225 Difference]: With dead ends: 3288 [2022-11-16 11:52:08,445 INFO L226 Difference]: Without dead ends: 3280 [2022-11-16 11:52:08,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:52:08,446 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 64 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:08,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 0 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:08,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3280 states. [2022-11-16 11:52:08,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3280 to 3032. [2022-11-16 11:52:08,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3032 states, 3031 states have (on average 3.203893104585945) internal successors, (9711), 3031 states have internal predecessors, (9711), 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) [2022-11-16 11:52:08,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3032 states to 3032 states and 9711 transitions. [2022-11-16 11:52:08,548 INFO L78 Accepts]: Start accepts. Automaton has 3032 states and 9711 transitions. Word has length 32 [2022-11-16 11:52:08,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:08,549 INFO L495 AbstractCegarLoop]: Abstraction has 3032 states and 9711 transitions. [2022-11-16 11:52:08,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:08,549 INFO L276 IsEmpty]: Start isEmpty. Operand 3032 states and 9711 transitions. [2022-11-16 11:52:08,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:08,555 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:08,555 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] [2022-11-16 11:52:08,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-16 11:52:08,555 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:08,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:08,556 INFO L85 PathProgramCache]: Analyzing trace with hash -951663218, now seen corresponding path program 43 times [2022-11-16 11:52:08,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:08,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849711642] [2022-11-16 11:52:08,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:08,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:08,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:08,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:08,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849711642] [2022-11-16 11:52:08,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849711642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:08,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:08,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:08,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134659783] [2022-11-16 11:52:08,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:08,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:08,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:08,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:08,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:08,855 INFO L87 Difference]: Start difference. First operand 3032 states and 9711 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:09,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:09,342 INFO L93 Difference]: Finished difference Result 4314 states and 13512 transitions. [2022-11-16 11:52:09,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:52:09,343 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:09,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:09,350 INFO L225 Difference]: With dead ends: 4314 [2022-11-16 11:52:09,350 INFO L226 Difference]: Without dead ends: 4294 [2022-11-16 11:52:09,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:52:09,351 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 84 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:09,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 0 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:09,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4294 states. [2022-11-16 11:52:09,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4294 to 3092. [2022-11-16 11:52:09,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3092 states, 3091 states have (on average 3.1944354577806533) internal successors, (9874), 3091 states have internal predecessors, (9874), 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) [2022-11-16 11:52:09,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3092 states to 3092 states and 9874 transitions. [2022-11-16 11:52:09,412 INFO L78 Accepts]: Start accepts. Automaton has 3092 states and 9874 transitions. Word has length 32 [2022-11-16 11:52:09,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:09,412 INFO L495 AbstractCegarLoop]: Abstraction has 3092 states and 9874 transitions. [2022-11-16 11:52:09,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:09,413 INFO L276 IsEmpty]: Start isEmpty. Operand 3092 states and 9874 transitions. [2022-11-16 11:52:09,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:09,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:09,417 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] [2022-11-16 11:52:09,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-16 11:52:09,417 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:09,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:09,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1445993854, now seen corresponding path program 44 times [2022-11-16 11:52:09,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:09,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017791148] [2022-11-16 11:52:09,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:09,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:09,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:09,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:09,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017791148] [2022-11-16 11:52:09,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017791148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:09,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:09,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:09,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514618060] [2022-11-16 11:52:09,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:09,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:09,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:09,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:09,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:09,738 INFO L87 Difference]: Start difference. First operand 3092 states and 9874 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:10,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:10,284 INFO L93 Difference]: Finished difference Result 3196 states and 10087 transitions. [2022-11-16 11:52:10,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:52:10,284 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:10,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:10,292 INFO L225 Difference]: With dead ends: 3196 [2022-11-16 11:52:10,292 INFO L226 Difference]: Without dead ends: 3168 [2022-11-16 11:52:10,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:52:10,293 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:10,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 0 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:10,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3168 states. [2022-11-16 11:52:10,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3168 to 3080. [2022-11-16 11:52:10,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3080 states, 3079 states have (on average 3.199415394608639) internal successors, (9851), 3079 states have internal predecessors, (9851), 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) [2022-11-16 11:52:10,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3080 states to 3080 states and 9851 transitions. [2022-11-16 11:52:10,362 INFO L78 Accepts]: Start accepts. Automaton has 3080 states and 9851 transitions. Word has length 32 [2022-11-16 11:52:10,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:10,362 INFO L495 AbstractCegarLoop]: Abstraction has 3080 states and 9851 transitions. [2022-11-16 11:52:10,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:10,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3080 states and 9851 transitions. [2022-11-16 11:52:10,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:10,369 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:10,369 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] [2022-11-16 11:52:10,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-16 11:52:10,369 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:10,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:10,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1635392634, now seen corresponding path program 45 times [2022-11-16 11:52:10,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:10,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711287298] [2022-11-16 11:52:10,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:10,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:10,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:10,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:10,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711287298] [2022-11-16 11:52:10,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711287298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:10,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:10,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:10,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103279243] [2022-11-16 11:52:10,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:10,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:10,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:10,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:10,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:10,774 INFO L87 Difference]: Start difference. First operand 3080 states and 9851 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:11,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:11,184 INFO L93 Difference]: Finished difference Result 3110 states and 9894 transitions. [2022-11-16 11:52:11,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:52:11,184 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:11,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:11,194 INFO L225 Difference]: With dead ends: 3110 [2022-11-16 11:52:11,194 INFO L226 Difference]: Without dead ends: 3068 [2022-11-16 11:52:11,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:52:11,195 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 36 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:11,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 0 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:11,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2022-11-16 11:52:11,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 3068. [2022-11-16 11:52:11,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3068 states, 3067 states have (on average 3.202151940006521) internal successors, (9821), 3067 states have internal predecessors, (9821), 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) [2022-11-16 11:52:11,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3068 states to 3068 states and 9821 transitions. [2022-11-16 11:52:11,287 INFO L78 Accepts]: Start accepts. Automaton has 3068 states and 9821 transitions. Word has length 32 [2022-11-16 11:52:11,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:11,287 INFO L495 AbstractCegarLoop]: Abstraction has 3068 states and 9821 transitions. [2022-11-16 11:52:11,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:11,288 INFO L276 IsEmpty]: Start isEmpty. Operand 3068 states and 9821 transitions. [2022-11-16 11:52:11,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:11,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:11,297 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] [2022-11-16 11:52:11,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-16 11:52:11,297 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:11,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:11,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1917271950, now seen corresponding path program 46 times [2022-11-16 11:52:11,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:11,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345251351] [2022-11-16 11:52:11,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:11,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:11,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:11,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:11,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345251351] [2022-11-16 11:52:11,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345251351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:11,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:11,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:52:11,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367884406] [2022-11-16 11:52:11,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:11,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:11,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:11,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:11,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:11,613 INFO L87 Difference]: Start difference. First operand 3068 states and 9821 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:11,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:11,984 INFO L93 Difference]: Finished difference Result 3114 states and 9912 transitions. [2022-11-16 11:52:11,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:52:11,985 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:11,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:11,993 INFO L225 Difference]: With dead ends: 3114 [2022-11-16 11:52:11,993 INFO L226 Difference]: Without dead ends: 3114 [2022-11-16 11:52:11,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:52:11,994 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 36 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:11,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 0 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:12,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3114 states. [2022-11-16 11:52:12,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3114 to 3088. [2022-11-16 11:52:12,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3088 states, 3087 states have (on average 3.195011337868481) internal successors, (9863), 3087 states have internal predecessors, (9863), 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) [2022-11-16 11:52:12,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3088 states to 3088 states and 9863 transitions. [2022-11-16 11:52:12,061 INFO L78 Accepts]: Start accepts. Automaton has 3088 states and 9863 transitions. Word has length 32 [2022-11-16 11:52:12,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:12,061 INFO L495 AbstractCegarLoop]: Abstraction has 3088 states and 9863 transitions. [2022-11-16 11:52:12,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:12,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3088 states and 9863 transitions. [2022-11-16 11:52:12,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:12,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:12,068 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] [2022-11-16 11:52:12,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-16 11:52:12,070 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:12,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:12,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1445841652, now seen corresponding path program 47 times [2022-11-16 11:52:12,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:12,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041066346] [2022-11-16 11:52:12,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:12,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:12,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:12,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:12,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041066346] [2022-11-16 11:52:12,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041066346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:12,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:12,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:12,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171241596] [2022-11-16 11:52:12,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:12,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:12,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:12,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:12,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:12,383 INFO L87 Difference]: Start difference. First operand 3088 states and 9863 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:12,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:12,787 INFO L93 Difference]: Finished difference Result 3120 states and 9915 transitions. [2022-11-16 11:52:12,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:52:12,787 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:12,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:12,793 INFO L225 Difference]: With dead ends: 3120 [2022-11-16 11:52:12,793 INFO L226 Difference]: Without dead ends: 3090 [2022-11-16 11:52:12,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:52:12,794 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 48 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:12,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 0 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:12,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3090 states. [2022-11-16 11:52:12,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3090 to 3080. [2022-11-16 11:52:12,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3080 states, 3079 states have (on average 3.1955180253329) internal successors, (9839), 3079 states have internal predecessors, (9839), 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) [2022-11-16 11:52:12,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3080 states to 3080 states and 9839 transitions. [2022-11-16 11:52:12,840 INFO L78 Accepts]: Start accepts. Automaton has 3080 states and 9839 transitions. Word has length 32 [2022-11-16 11:52:12,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:12,840 INFO L495 AbstractCegarLoop]: Abstraction has 3080 states and 9839 transitions. [2022-11-16 11:52:12,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:12,840 INFO L276 IsEmpty]: Start isEmpty. Operand 3080 states and 9839 transitions. [2022-11-16 11:52:12,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:12,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:12,847 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] [2022-11-16 11:52:12,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-16 11:52:12,847 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:12,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:12,848 INFO L85 PathProgramCache]: Analyzing trace with hash -100529270, now seen corresponding path program 48 times [2022-11-16 11:52:12,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:12,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704799600] [2022-11-16 11:52:12,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:12,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:13,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:13,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:13,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704799600] [2022-11-16 11:52:13,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704799600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:13,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:13,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:52:13,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356799568] [2022-11-16 11:52:13,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:13,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:13,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:13,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:13,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:13,175 INFO L87 Difference]: Start difference. First operand 3080 states and 9839 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:13,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:13,498 INFO L93 Difference]: Finished difference Result 3188 states and 10059 transitions. [2022-11-16 11:52:13,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:52:13,498 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:13,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:13,506 INFO L225 Difference]: With dead ends: 3188 [2022-11-16 11:52:13,506 INFO L226 Difference]: Without dead ends: 3188 [2022-11-16 11:52:13,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:52:13,507 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 46 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:13,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 0 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:13,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3188 states. [2022-11-16 11:52:13,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3188 to 3070. [2022-11-16 11:52:13,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3070 states, 3069 states have (on average 3.1922450309547084) internal successors, (9797), 3069 states have internal predecessors, (9797), 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) [2022-11-16 11:52:13,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3070 states to 3070 states and 9797 transitions. [2022-11-16 11:52:13,574 INFO L78 Accepts]: Start accepts. Automaton has 3070 states and 9797 transitions. Word has length 32 [2022-11-16 11:52:13,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:13,575 INFO L495 AbstractCegarLoop]: Abstraction has 3070 states and 9797 transitions. [2022-11-16 11:52:13,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:13,575 INFO L276 IsEmpty]: Start isEmpty. Operand 3070 states and 9797 transitions. [2022-11-16 11:52:13,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:13,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:13,581 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] [2022-11-16 11:52:13,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-16 11:52:13,581 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:13,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:13,582 INFO L85 PathProgramCache]: Analyzing trace with hash 370901028, now seen corresponding path program 49 times [2022-11-16 11:52:13,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:13,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686494728] [2022-11-16 11:52:13,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:13,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:13,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:13,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:13,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686494728] [2022-11-16 11:52:13,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686494728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:13,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:13,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:13,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936565175] [2022-11-16 11:52:13,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:13,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:13,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:13,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:13,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:13,855 INFO L87 Difference]: Start difference. First operand 3070 states and 9797 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:14,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:14,315 INFO L93 Difference]: Finished difference Result 3180 states and 9995 transitions. [2022-11-16 11:52:14,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:52:14,316 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:14,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:14,324 INFO L225 Difference]: With dead ends: 3180 [2022-11-16 11:52:14,324 INFO L226 Difference]: Without dead ends: 3150 [2022-11-16 11:52:14,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:52:14,325 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 54 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:14,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 0 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:14,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3150 states. [2022-11-16 11:52:14,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3150 to 3052. [2022-11-16 11:52:14,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3052 states, 3051 states have (on average 3.192723697148476) internal successors, (9741), 3051 states have internal predecessors, (9741), 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) [2022-11-16 11:52:14,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3052 states to 3052 states and 9741 transitions. [2022-11-16 11:52:14,412 INFO L78 Accepts]: Start accepts. Automaton has 3052 states and 9741 transitions. Word has length 32 [2022-11-16 11:52:14,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:14,412 INFO L495 AbstractCegarLoop]: Abstraction has 3052 states and 9741 transitions. [2022-11-16 11:52:14,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:14,413 INFO L276 IsEmpty]: Start isEmpty. Operand 3052 states and 9741 transitions. [2022-11-16 11:52:14,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:14,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:14,419 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] [2022-11-16 11:52:14,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-16 11:52:14,419 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:14,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:14,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1284147990, now seen corresponding path program 50 times [2022-11-16 11:52:14,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:14,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054644073] [2022-11-16 11:52:14,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:14,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:14,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:14,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:14,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054644073] [2022-11-16 11:52:14,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054644073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:14,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:14,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:14,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565589213] [2022-11-16 11:52:14,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:14,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:14,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:14,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:14,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:14,711 INFO L87 Difference]: Start difference. First operand 3052 states and 9741 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:15,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:15,187 INFO L93 Difference]: Finished difference Result 3102 states and 9244 transitions. [2022-11-16 11:52:15,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:52:15,188 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:15,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:15,195 INFO L225 Difference]: With dead ends: 3102 [2022-11-16 11:52:15,195 INFO L226 Difference]: Without dead ends: 3050 [2022-11-16 11:52:15,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:52:15,195 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 75 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:15,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 0 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:15,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2022-11-16 11:52:15,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 2458. [2022-11-16 11:52:15,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2458 states, 2457 states have (on average 3.0256410256410255) internal successors, (7434), 2457 states have internal predecessors, (7434), 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) [2022-11-16 11:52:15,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 7434 transitions. [2022-11-16 11:52:15,255 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 7434 transitions. Word has length 32 [2022-11-16 11:52:15,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:15,255 INFO L495 AbstractCegarLoop]: Abstraction has 2458 states and 7434 transitions. [2022-11-16 11:52:15,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:15,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 7434 transitions. [2022-11-16 11:52:15,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:15,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:15,260 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] [2022-11-16 11:52:15,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-16 11:52:15,260 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:15,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:15,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1098695802, now seen corresponding path program 51 times [2022-11-16 11:52:15,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:15,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991817705] [2022-11-16 11:52:15,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:15,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:15,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:15,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:15,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991817705] [2022-11-16 11:52:15,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991817705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:15,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:15,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:15,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251609636] [2022-11-16 11:52:15,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:15,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:15,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:15,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:15,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:15,577 INFO L87 Difference]: Start difference. First operand 2458 states and 7434 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:16,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:16,022 INFO L93 Difference]: Finished difference Result 2608 states and 7721 transitions. [2022-11-16 11:52:16,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:52:16,023 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:16,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:16,028 INFO L225 Difference]: With dead ends: 2608 [2022-11-16 11:52:16,028 INFO L226 Difference]: Without dead ends: 2588 [2022-11-16 11:52:16,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:52:16,029 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 54 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:16,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 0 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:16,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2022-11-16 11:52:16,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 2446. [2022-11-16 11:52:16,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2446 states, 2445 states have (on average 3.029447852760736) internal successors, (7407), 2445 states have internal predecessors, (7407), 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) [2022-11-16 11:52:16,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2446 states to 2446 states and 7407 transitions. [2022-11-16 11:52:16,083 INFO L78 Accepts]: Start accepts. Automaton has 2446 states and 7407 transitions. Word has length 32 [2022-11-16 11:52:16,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:16,083 INFO L495 AbstractCegarLoop]: Abstraction has 2446 states and 7407 transitions. [2022-11-16 11:52:16,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:16,084 INFO L276 IsEmpty]: Start isEmpty. Operand 2446 states and 7407 transitions. [2022-11-16 11:52:16,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:16,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:16,088 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] [2022-11-16 11:52:16,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-16 11:52:16,089 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:16,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:16,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1982538484, now seen corresponding path program 52 times [2022-11-16 11:52:16,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:16,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114238466] [2022-11-16 11:52:16,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:16,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:16,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:16,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:16,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114238466] [2022-11-16 11:52:16,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114238466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:16,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:16,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:52:16,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366865098] [2022-11-16 11:52:16,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:16,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:16,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:16,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:16,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:16,361 INFO L87 Difference]: Start difference. First operand 2446 states and 7407 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:16,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:16,854 INFO L93 Difference]: Finished difference Result 3382 states and 9836 transitions. [2022-11-16 11:52:16,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:52:16,854 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:16,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:16,860 INFO L225 Difference]: With dead ends: 3382 [2022-11-16 11:52:16,860 INFO L226 Difference]: Without dead ends: 3352 [2022-11-16 11:52:16,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:52:16,861 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 105 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:16,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 0 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:16,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3352 states. [2022-11-16 11:52:16,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3352 to 2508. [2022-11-16 11:52:16,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2508 states, 2507 states have (on average 3.0035899481451933) internal successors, (7530), 2507 states have internal predecessors, (7530), 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) [2022-11-16 11:52:16,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2508 states to 2508 states and 7530 transitions. [2022-11-16 11:52:16,908 INFO L78 Accepts]: Start accepts. Automaton has 2508 states and 7530 transitions. Word has length 32 [2022-11-16 11:52:16,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:16,908 INFO L495 AbstractCegarLoop]: Abstraction has 2508 states and 7530 transitions. [2022-11-16 11:52:16,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:16,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2508 states and 7530 transitions. [2022-11-16 11:52:16,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:16,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:16,912 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] [2022-11-16 11:52:16,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-16 11:52:16,912 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:16,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:16,913 INFO L85 PathProgramCache]: Analyzing trace with hash -895080582, now seen corresponding path program 53 times [2022-11-16 11:52:16,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:16,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329296606] [2022-11-16 11:52:16,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:16,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:17,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:17,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:17,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329296606] [2022-11-16 11:52:17,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329296606] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:17,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:17,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:52:17,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121892590] [2022-11-16 11:52:17,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:17,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:17,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:17,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:17,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:17,203 INFO L87 Difference]: Start difference. First operand 2508 states and 7530 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:17,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:17,645 INFO L93 Difference]: Finished difference Result 3460 states and 9959 transitions. [2022-11-16 11:52:17,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:52:17,645 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:17,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:17,650 INFO L225 Difference]: With dead ends: 3460 [2022-11-16 11:52:17,651 INFO L226 Difference]: Without dead ends: 3404 [2022-11-16 11:52:17,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:52:17,651 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 108 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:17,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 0 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:17,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states. [2022-11-16 11:52:17,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 2686. [2022-11-16 11:52:17,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2686 states, 2685 states have (on average 2.981005586592179) internal successors, (8004), 2685 states have internal predecessors, (8004), 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) [2022-11-16 11:52:17,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2686 states to 2686 states and 8004 transitions. [2022-11-16 11:52:17,697 INFO L78 Accepts]: Start accepts. Automaton has 2686 states and 8004 transitions. Word has length 32 [2022-11-16 11:52:17,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:17,697 INFO L495 AbstractCegarLoop]: Abstraction has 2686 states and 8004 transitions. [2022-11-16 11:52:17,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:17,698 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states and 8004 transitions. [2022-11-16 11:52:17,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:17,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:17,701 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] [2022-11-16 11:52:17,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-16 11:52:17,702 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:17,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:17,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1726339008, now seen corresponding path program 54 times [2022-11-16 11:52:17,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:17,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479820834] [2022-11-16 11:52:17,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:17,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:18,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:18,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:18,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479820834] [2022-11-16 11:52:18,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479820834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:18,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:18,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:52:18,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414357716] [2022-11-16 11:52:18,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:18,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:18,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:18,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:18,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:18,069 INFO L87 Difference]: Start difference. First operand 2686 states and 8004 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:18,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:18,473 INFO L93 Difference]: Finished difference Result 3958 states and 11279 transitions. [2022-11-16 11:52:18,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:52:18,473 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:18,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:18,482 INFO L225 Difference]: With dead ends: 3958 [2022-11-16 11:52:18,482 INFO L226 Difference]: Without dead ends: 3946 [2022-11-16 11:52:18,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:52:18,482 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 95 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:18,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 0 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:18,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3946 states. [2022-11-16 11:52:18,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3946 to 2760. [2022-11-16 11:52:18,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2760 states, 2759 states have (on average 2.9800652410293584) internal successors, (8222), 2759 states have internal predecessors, (8222), 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) [2022-11-16 11:52:18,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2760 states to 2760 states and 8222 transitions. [2022-11-16 11:52:18,550 INFO L78 Accepts]: Start accepts. Automaton has 2760 states and 8222 transitions. Word has length 32 [2022-11-16 11:52:18,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:18,550 INFO L495 AbstractCegarLoop]: Abstraction has 2760 states and 8222 transitions. [2022-11-16 11:52:18,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:18,551 INFO L276 IsEmpty]: Start isEmpty. Operand 2760 states and 8222 transitions. [2022-11-16 11:52:18,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:18,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:18,556 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] [2022-11-16 11:52:18,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-16 11:52:18,556 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:18,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:18,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1471560524, now seen corresponding path program 55 times [2022-11-16 11:52:18,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:18,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903092518] [2022-11-16 11:52:18,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:18,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:18,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:18,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:18,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903092518] [2022-11-16 11:52:18,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903092518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:18,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:18,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:52:18,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217142946] [2022-11-16 11:52:18,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:18,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:18,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:18,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:18,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:18,856 INFO L87 Difference]: Start difference. First operand 2760 states and 8222 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:19,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:19,217 INFO L93 Difference]: Finished difference Result 3970 states and 11277 transitions. [2022-11-16 11:52:19,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:52:19,218 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:19,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:19,223 INFO L225 Difference]: With dead ends: 3970 [2022-11-16 11:52:19,223 INFO L226 Difference]: Without dead ends: 3938 [2022-11-16 11:52:19,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:52:19,224 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 89 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:19,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 0 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:19,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3938 states. [2022-11-16 11:52:19,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3938 to 2772. [2022-11-16 11:52:19,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2772 states, 2771 states have (on average 2.9545290508841573) internal successors, (8187), 2771 states have internal predecessors, (8187), 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) [2022-11-16 11:52:19,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2772 states to 2772 states and 8187 transitions. [2022-11-16 11:52:19,272 INFO L78 Accepts]: Start accepts. Automaton has 2772 states and 8187 transitions. Word has length 32 [2022-11-16 11:52:19,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:19,273 INFO L495 AbstractCegarLoop]: Abstraction has 2772 states and 8187 transitions. [2022-11-16 11:52:19,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:19,273 INFO L276 IsEmpty]: Start isEmpty. Operand 2772 states and 8187 transitions. [2022-11-16 11:52:19,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:19,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:19,277 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] [2022-11-16 11:52:19,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-11-16 11:52:19,277 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:19,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:19,277 INFO L85 PathProgramCache]: Analyzing trace with hash 450152396, now seen corresponding path program 56 times [2022-11-16 11:52:19,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:19,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796479662] [2022-11-16 11:52:19,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:19,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:19,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:19,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:19,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796479662] [2022-11-16 11:52:19,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796479662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:19,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:19,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:19,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509617525] [2022-11-16 11:52:19,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:19,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:19,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:19,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:19,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:19,581 INFO L87 Difference]: Start difference. First operand 2772 states and 8187 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:20,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:20,029 INFO L93 Difference]: Finished difference Result 2948 states and 8528 transitions. [2022-11-16 11:52:20,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:52:20,030 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:20,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:20,035 INFO L225 Difference]: With dead ends: 2948 [2022-11-16 11:52:20,035 INFO L226 Difference]: Without dead ends: 2890 [2022-11-16 11:52:20,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:52:20,036 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 48 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:20,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 0 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:20,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2022-11-16 11:52:20,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 2744. [2022-11-16 11:52:20,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2744 states, 2743 states have (on average 2.9635435654393) internal successors, (8129), 2743 states have internal predecessors, (8129), 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) [2022-11-16 11:52:20,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2744 states to 2744 states and 8129 transitions. [2022-11-16 11:52:20,077 INFO L78 Accepts]: Start accepts. Automaton has 2744 states and 8129 transitions. Word has length 32 [2022-11-16 11:52:20,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:20,078 INFO L495 AbstractCegarLoop]: Abstraction has 2744 states and 8129 transitions. [2022-11-16 11:52:20,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:20,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2744 states and 8129 transitions. [2022-11-16 11:52:20,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:20,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:20,082 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] [2022-11-16 11:52:20,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-11-16 11:52:20,082 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:20,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:20,082 INFO L85 PathProgramCache]: Analyzing trace with hash -234088002, now seen corresponding path program 57 times [2022-11-16 11:52:20,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:20,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187710419] [2022-11-16 11:52:20,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:20,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:20,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:20,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:20,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187710419] [2022-11-16 11:52:20,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187710419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:20,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:20,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:20,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107316774] [2022-11-16 11:52:20,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:20,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:20,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:20,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:20,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:20,419 INFO L87 Difference]: Start difference. First operand 2744 states and 8129 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:20,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:20,777 INFO L93 Difference]: Finished difference Result 2782 states and 8194 transitions. [2022-11-16 11:52:20,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:52:20,778 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:20,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:20,782 INFO L225 Difference]: With dead ends: 2782 [2022-11-16 11:52:20,782 INFO L226 Difference]: Without dead ends: 2766 [2022-11-16 11:52:20,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:52:20,783 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 37 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:20,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 0 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:20,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2766 states. [2022-11-16 11:52:20,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2766 to 2748. [2022-11-16 11:52:20,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2748 states, 2747 states have (on average 2.9599563159810702) internal successors, (8131), 2747 states have internal predecessors, (8131), 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) [2022-11-16 11:52:20,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2748 states to 2748 states and 8131 transitions. [2022-11-16 11:52:20,837 INFO L78 Accepts]: Start accepts. Automaton has 2748 states and 8131 transitions. Word has length 32 [2022-11-16 11:52:20,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:20,838 INFO L495 AbstractCegarLoop]: Abstraction has 2748 states and 8131 transitions. [2022-11-16 11:52:20,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:20,838 INFO L276 IsEmpty]: Start isEmpty. Operand 2748 states and 8131 transitions. [2022-11-16 11:52:20,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:20,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:20,843 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] [2022-11-16 11:52:20,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-16 11:52:20,843 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:20,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:20,844 INFO L85 PathProgramCache]: Analyzing trace with hash -73650230, now seen corresponding path program 58 times [2022-11-16 11:52:20,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:20,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360365805] [2022-11-16 11:52:20,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:20,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:21,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:21,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:21,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360365805] [2022-11-16 11:52:21,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360365805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:21,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:21,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:21,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533547171] [2022-11-16 11:52:21,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:21,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:21,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:21,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:21,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:21,159 INFO L87 Difference]: Start difference. First operand 2748 states and 8131 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:21,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:21,571 INFO L93 Difference]: Finished difference Result 2808 states and 8244 transitions. [2022-11-16 11:52:21,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:52:21,572 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:21,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:21,576 INFO L225 Difference]: With dead ends: 2808 [2022-11-16 11:52:21,576 INFO L226 Difference]: Without dead ends: 2796 [2022-11-16 11:52:21,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:52:21,577 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:21,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:21,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2796 states. [2022-11-16 11:52:21,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2796 to 2754. [2022-11-16 11:52:21,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2754 states, 2753 states have (on average 2.957500908100254) internal successors, (8142), 2753 states have internal predecessors, (8142), 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) [2022-11-16 11:52:21,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2754 states to 2754 states and 8142 transitions. [2022-11-16 11:52:21,619 INFO L78 Accepts]: Start accepts. Automaton has 2754 states and 8142 transitions. Word has length 32 [2022-11-16 11:52:21,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:21,619 INFO L495 AbstractCegarLoop]: Abstraction has 2754 states and 8142 transitions. [2022-11-16 11:52:21,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:21,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2754 states and 8142 transitions. [2022-11-16 11:52:21,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:21,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:21,624 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] [2022-11-16 11:52:21,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-11-16 11:52:21,624 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:21,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:21,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1812838824, now seen corresponding path program 59 times [2022-11-16 11:52:21,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:21,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550528688] [2022-11-16 11:52:21,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:21,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:21,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:21,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:21,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550528688] [2022-11-16 11:52:21,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550528688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:21,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:21,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:21,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350979989] [2022-11-16 11:52:21,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:21,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:21,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:21,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:21,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:21,922 INFO L87 Difference]: Start difference. First operand 2754 states and 8142 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:22,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:22,440 INFO L93 Difference]: Finished difference Result 3684 states and 10552 transitions. [2022-11-16 11:52:22,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:52:22,441 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:22,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:22,447 INFO L225 Difference]: With dead ends: 3684 [2022-11-16 11:52:22,447 INFO L226 Difference]: Without dead ends: 3644 [2022-11-16 11:52:22,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:52:22,447 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 80 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:22,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 0 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:22,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3644 states. [2022-11-16 11:52:22,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3644 to 2706. [2022-11-16 11:52:22,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2706 states, 2705 states have (on average 2.9593345656192236) internal successors, (8005), 2705 states have internal predecessors, (8005), 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) [2022-11-16 11:52:22,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2706 states to 2706 states and 8005 transitions. [2022-11-16 11:52:22,499 INFO L78 Accepts]: Start accepts. Automaton has 2706 states and 8005 transitions. Word has length 32 [2022-11-16 11:52:22,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:22,499 INFO L495 AbstractCegarLoop]: Abstraction has 2706 states and 8005 transitions. [2022-11-16 11:52:22,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:22,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2706 states and 8005 transitions. [2022-11-16 11:52:22,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:22,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:22,505 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] [2022-11-16 11:52:22,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-11-16 11:52:22,505 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:22,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:22,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1432020520, now seen corresponding path program 60 times [2022-11-16 11:52:22,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:22,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795656377] [2022-11-16 11:52:22,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:22,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:22,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:22,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:22,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795656377] [2022-11-16 11:52:22,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795656377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:22,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:22,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:22,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506702560] [2022-11-16 11:52:22,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:22,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:22,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:22,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:22,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:22,826 INFO L87 Difference]: Start difference. First operand 2706 states and 8005 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:23,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:23,247 INFO L93 Difference]: Finished difference Result 2836 states and 8252 transitions. [2022-11-16 11:52:23,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:52:23,247 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:23,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:23,252 INFO L225 Difference]: With dead ends: 2836 [2022-11-16 11:52:23,252 INFO L226 Difference]: Without dead ends: 2816 [2022-11-16 11:52:23,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:52:23,253 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 45 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:23,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 0 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:23,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2816 states. [2022-11-16 11:52:23,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2816 to 2702. [2022-11-16 11:52:23,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2702 states, 2701 states have (on average 2.960014809329878) internal successors, (7995), 2701 states have internal predecessors, (7995), 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) [2022-11-16 11:52:23,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2702 states to 2702 states and 7995 transitions. [2022-11-16 11:52:23,292 INFO L78 Accepts]: Start accepts. Automaton has 2702 states and 7995 transitions. Word has length 32 [2022-11-16 11:52:23,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:23,292 INFO L495 AbstractCegarLoop]: Abstraction has 2702 states and 7995 transitions. [2022-11-16 11:52:23,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:23,292 INFO L276 IsEmpty]: Start isEmpty. Operand 2702 states and 7995 transitions. [2022-11-16 11:52:23,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:23,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:23,295 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] [2022-11-16 11:52:23,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-11-16 11:52:23,296 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:23,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:23,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1102632584, now seen corresponding path program 61 times [2022-11-16 11:52:23,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:23,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016201993] [2022-11-16 11:52:23,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:23,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:23,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:23,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:23,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016201993] [2022-11-16 11:52:23,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016201993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:23,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:23,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:23,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913223369] [2022-11-16 11:52:23,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:23,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:23,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:23,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:23,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:23,579 INFO L87 Difference]: Start difference. First operand 2702 states and 7995 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:24,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:24,054 INFO L93 Difference]: Finished difference Result 2850 states and 8276 transitions. [2022-11-16 11:52:24,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:52:24,055 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:24,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:24,059 INFO L225 Difference]: With dead ends: 2850 [2022-11-16 11:52:24,059 INFO L226 Difference]: Without dead ends: 2834 [2022-11-16 11:52:24,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:52:24,060 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 47 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:24,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 0 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:24,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2022-11-16 11:52:24,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 2692. [2022-11-16 11:52:24,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 2691 states have (on average 2.963210702341137) internal successors, (7974), 2691 states have internal predecessors, (7974), 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) [2022-11-16 11:52:24,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 7974 transitions. [2022-11-16 11:52:24,099 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 7974 transitions. Word has length 32 [2022-11-16 11:52:24,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:24,100 INFO L495 AbstractCegarLoop]: Abstraction has 2692 states and 7974 transitions. [2022-11-16 11:52:24,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:24,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 7974 transitions. [2022-11-16 11:52:24,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:24,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:24,103 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] [2022-11-16 11:52:24,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-11-16 11:52:24,104 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:24,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:24,104 INFO L85 PathProgramCache]: Analyzing trace with hash 442274424, now seen corresponding path program 62 times [2022-11-16 11:52:24,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:24,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989405449] [2022-11-16 11:52:24,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:24,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:24,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:24,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:24,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989405449] [2022-11-16 11:52:24,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989405449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:24,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:24,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:52:24,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428473297] [2022-11-16 11:52:24,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:24,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:24,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:24,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:24,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:24,384 INFO L87 Difference]: Start difference. First operand 2692 states and 7974 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:24,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:24,805 INFO L93 Difference]: Finished difference Result 3874 states and 10816 transitions. [2022-11-16 11:52:24,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:52:24,806 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:24,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:24,812 INFO L225 Difference]: With dead ends: 3874 [2022-11-16 11:52:24,812 INFO L226 Difference]: Without dead ends: 3836 [2022-11-16 11:52:24,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:52:24,813 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 90 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:24,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 0 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:24,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3836 states. [2022-11-16 11:52:24,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3836 to 2680. [2022-11-16 11:52:24,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2680 states, 2679 states have (on average 2.92795819335573) internal successors, (7844), 2679 states have internal predecessors, (7844), 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) [2022-11-16 11:52:24,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2680 states to 2680 states and 7844 transitions. [2022-11-16 11:52:24,864 INFO L78 Accepts]: Start accepts. Automaton has 2680 states and 7844 transitions. Word has length 32 [2022-11-16 11:52:24,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:24,864 INFO L495 AbstractCegarLoop]: Abstraction has 2680 states and 7844 transitions. [2022-11-16 11:52:24,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:24,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2680 states and 7844 transitions. [2022-11-16 11:52:24,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:24,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:24,870 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] [2022-11-16 11:52:24,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-11-16 11:52:24,870 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:24,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:24,870 INFO L85 PathProgramCache]: Analyzing trace with hash 887486398, now seen corresponding path program 63 times [2022-11-16 11:52:24,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:24,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018859019] [2022-11-16 11:52:24,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:24,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:25,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:25,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:25,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018859019] [2022-11-16 11:52:25,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018859019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:25,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:25,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:52:25,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535582534] [2022-11-16 11:52:25,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:25,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:25,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:25,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:25,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:25,141 INFO L87 Difference]: Start difference. First operand 2680 states and 7844 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:25,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:25,586 INFO L93 Difference]: Finished difference Result 3892 states and 10636 transitions. [2022-11-16 11:52:25,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:52:25,587 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:25,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:25,592 INFO L225 Difference]: With dead ends: 3892 [2022-11-16 11:52:25,592 INFO L226 Difference]: Without dead ends: 3818 [2022-11-16 11:52:25,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:52:25,593 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 87 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:25,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 0 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:25,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states. [2022-11-16 11:52:25,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 2754. [2022-11-16 11:52:25,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2754 states, 2753 states have (on average 2.8852161278605157) internal successors, (7943), 2753 states have internal predecessors, (7943), 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) [2022-11-16 11:52:25,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2754 states to 2754 states and 7943 transitions. [2022-11-16 11:52:25,652 INFO L78 Accepts]: Start accepts. Automaton has 2754 states and 7943 transitions. Word has length 32 [2022-11-16 11:52:25,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:25,652 INFO L495 AbstractCegarLoop]: Abstraction has 2754 states and 7943 transitions. [2022-11-16 11:52:25,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:25,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2754 states and 7943 transitions. [2022-11-16 11:52:25,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:25,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:25,656 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] [2022-11-16 11:52:25,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-11-16 11:52:25,656 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:25,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:25,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1833530014, now seen corresponding path program 64 times [2022-11-16 11:52:25,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:25,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202382156] [2022-11-16 11:52:25,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:25,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:25,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:25,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:25,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202382156] [2022-11-16 11:52:25,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202382156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:25,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:25,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:52:25,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587114854] [2022-11-16 11:52:25,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:25,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:25,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:25,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:25,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:25,908 INFO L87 Difference]: Start difference. First operand 2754 states and 7943 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:26,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:26,427 INFO L93 Difference]: Finished difference Result 3788 states and 10488 transitions. [2022-11-16 11:52:26,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:52:26,427 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:26,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:26,434 INFO L225 Difference]: With dead ends: 3788 [2022-11-16 11:52:26,434 INFO L226 Difference]: Without dead ends: 3766 [2022-11-16 11:52:26,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:52:26,434 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 82 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:26,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 0 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:26,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3766 states. [2022-11-16 11:52:26,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3766 to 2760. [2022-11-16 11:52:26,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2760 states, 2759 states have (on average 2.869880391446176) internal successors, (7918), 2759 states have internal predecessors, (7918), 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) [2022-11-16 11:52:26,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2760 states to 2760 states and 7918 transitions. [2022-11-16 11:52:26,479 INFO L78 Accepts]: Start accepts. Automaton has 2760 states and 7918 transitions. Word has length 32 [2022-11-16 11:52:26,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:26,480 INFO L495 AbstractCegarLoop]: Abstraction has 2760 states and 7918 transitions. [2022-11-16 11:52:26,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:26,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2760 states and 7918 transitions. [2022-11-16 11:52:26,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:26,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:26,483 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] [2022-11-16 11:52:26,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-11-16 11:52:26,483 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:26,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:26,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1732152504, now seen corresponding path program 65 times [2022-11-16 11:52:26,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:26,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581922107] [2022-11-16 11:52:26,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:26,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:26,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:26,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:26,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581922107] [2022-11-16 11:52:26,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581922107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:26,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:26,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:26,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082309209] [2022-11-16 11:52:26,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:26,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:26,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:26,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:26,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:26,730 INFO L87 Difference]: Start difference. First operand 2760 states and 7918 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:27,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:27,376 INFO L93 Difference]: Finished difference Result 4018 states and 10997 transitions. [2022-11-16 11:52:27,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:52:27,376 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:27,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:27,382 INFO L225 Difference]: With dead ends: 4018 [2022-11-16 11:52:27,382 INFO L226 Difference]: Without dead ends: 3964 [2022-11-16 11:52:27,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:52:27,383 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 106 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:27,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 0 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:52:27,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3964 states. [2022-11-16 11:52:27,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3964 to 2842. [2022-11-16 11:52:27,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2842 states, 2841 states have (on average 2.8574445617740234) internal successors, (8118), 2841 states have internal predecessors, (8118), 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) [2022-11-16 11:52:27,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 8118 transitions. [2022-11-16 11:52:27,430 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 8118 transitions. Word has length 32 [2022-11-16 11:52:27,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:27,430 INFO L495 AbstractCegarLoop]: Abstraction has 2842 states and 8118 transitions. [2022-11-16 11:52:27,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:27,430 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 8118 transitions. [2022-11-16 11:52:27,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:27,433 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:27,433 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] [2022-11-16 11:52:27,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-11-16 11:52:27,434 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:27,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:27,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1083609098, now seen corresponding path program 66 times [2022-11-16 11:52:27,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:27,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819582150] [2022-11-16 11:52:27,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:27,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:27,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:27,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:27,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:27,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819582150] [2022-11-16 11:52:27,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819582150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:27,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:27,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:27,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329268326] [2022-11-16 11:52:27,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:27,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:27,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:27,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:27,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:27,657 INFO L87 Difference]: Start difference. First operand 2842 states and 8118 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:28,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:28,219 INFO L93 Difference]: Finished difference Result 4190 states and 11427 transitions. [2022-11-16 11:52:28,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:52:28,219 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:28,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:28,225 INFO L225 Difference]: With dead ends: 4190 [2022-11-16 11:52:28,225 INFO L226 Difference]: Without dead ends: 3962 [2022-11-16 11:52:28,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:52:28,226 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 109 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:28,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 0 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:52:28,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3962 states. [2022-11-16 11:52:28,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3962 to 2858. [2022-11-16 11:52:28,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2858 states, 2857 states have (on average 2.826041302065103) internal successors, (8074), 2857 states have internal predecessors, (8074), 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) [2022-11-16 11:52:28,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2858 states to 2858 states and 8074 transitions. [2022-11-16 11:52:28,273 INFO L78 Accepts]: Start accepts. Automaton has 2858 states and 8074 transitions. Word has length 32 [2022-11-16 11:52:28,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:28,273 INFO L495 AbstractCegarLoop]: Abstraction has 2858 states and 8074 transitions. [2022-11-16 11:52:28,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:28,273 INFO L276 IsEmpty]: Start isEmpty. Operand 2858 states and 8074 transitions. [2022-11-16 11:52:28,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:28,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:28,276 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] [2022-11-16 11:52:28,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-11-16 11:52:28,276 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:28,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:28,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1803469784, now seen corresponding path program 67 times [2022-11-16 11:52:28,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:28,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972352461] [2022-11-16 11:52:28,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:28,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:28,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:28,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:28,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972352461] [2022-11-16 11:52:28,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972352461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:28,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:28,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:52:28,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195969378] [2022-11-16 11:52:28,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:28,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:28,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:28,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:28,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:28,491 INFO L87 Difference]: Start difference. First operand 2858 states and 8074 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:28,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:28,964 INFO L93 Difference]: Finished difference Result 4328 states and 11553 transitions. [2022-11-16 11:52:28,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:52:28,964 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:28,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:28,970 INFO L225 Difference]: With dead ends: 4328 [2022-11-16 11:52:28,970 INFO L226 Difference]: Without dead ends: 4298 [2022-11-16 11:52:28,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:52:28,971 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 129 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:28,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 0 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:28,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4298 states. [2022-11-16 11:52:29,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4298 to 2768. [2022-11-16 11:52:29,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2768 states, 2767 states have (on average 2.828695337911095) internal successors, (7827), 2767 states have internal predecessors, (7827), 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) [2022-11-16 11:52:29,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2768 states to 2768 states and 7827 transitions. [2022-11-16 11:52:29,020 INFO L78 Accepts]: Start accepts. Automaton has 2768 states and 7827 transitions. Word has length 32 [2022-11-16 11:52:29,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:29,021 INFO L495 AbstractCegarLoop]: Abstraction has 2768 states and 7827 transitions. [2022-11-16 11:52:29,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:29,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2768 states and 7827 transitions. [2022-11-16 11:52:29,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:29,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:29,024 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] [2022-11-16 11:52:29,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-11-16 11:52:29,024 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:29,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:29,024 INFO L85 PathProgramCache]: Analyzing trace with hash -716011882, now seen corresponding path program 68 times [2022-11-16 11:52:29,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:29,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327406184] [2022-11-16 11:52:29,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:29,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:29,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:29,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:29,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327406184] [2022-11-16 11:52:29,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327406184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:29,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:29,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:52:29,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789542665] [2022-11-16 11:52:29,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:29,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:29,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:29,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:29,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:29,250 INFO L87 Difference]: Start difference. First operand 2768 states and 7827 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:29,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:29,664 INFO L93 Difference]: Finished difference Result 4286 states and 11521 transitions. [2022-11-16 11:52:29,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:52:29,665 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:29,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:29,671 INFO L225 Difference]: With dead ends: 4286 [2022-11-16 11:52:29,671 INFO L226 Difference]: Without dead ends: 4222 [2022-11-16 11:52:29,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:52:29,672 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 106 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:29,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 0 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:29,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4222 states. [2022-11-16 11:52:29,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4222 to 2672. [2022-11-16 11:52:29,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2672 states, 2671 states have (on average 2.822912766754025) internal successors, (7540), 2671 states have internal predecessors, (7540), 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) [2022-11-16 11:52:29,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 7540 transitions. [2022-11-16 11:52:29,717 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 7540 transitions. Word has length 32 [2022-11-16 11:52:29,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:29,718 INFO L495 AbstractCegarLoop]: Abstraction has 2672 states and 7540 transitions. [2022-11-16 11:52:29,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:29,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 7540 transitions. [2022-11-16 11:52:29,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:29,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:29,721 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] [2022-11-16 11:52:29,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-11-16 11:52:29,721 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:29,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:29,721 INFO L85 PathProgramCache]: Analyzing trace with hash 296762152, now seen corresponding path program 69 times [2022-11-16 11:52:29,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:29,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713972940] [2022-11-16 11:52:29,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:29,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:29,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:29,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:29,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713972940] [2022-11-16 11:52:29,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713972940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:29,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:29,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:52:29,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482784016] [2022-11-16 11:52:29,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:29,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:29,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:29,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:29,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:29,968 INFO L87 Difference]: Start difference. First operand 2672 states and 7540 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:30,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:30,406 INFO L93 Difference]: Finished difference Result 4298 states and 11450 transitions. [2022-11-16 11:52:30,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:52:30,407 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:30,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:30,413 INFO L225 Difference]: With dead ends: 4298 [2022-11-16 11:52:30,413 INFO L226 Difference]: Without dead ends: 4226 [2022-11-16 11:52:30,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:52:30,413 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 118 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:30,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 0 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:30,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4226 states. [2022-11-16 11:52:30,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4226 to 2724. [2022-11-16 11:52:30,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2724 states, 2723 states have (on average 2.8112376055820785) internal successors, (7655), 2723 states have internal predecessors, (7655), 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) [2022-11-16 11:52:30,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2724 states to 2724 states and 7655 transitions. [2022-11-16 11:52:30,461 INFO L78 Accepts]: Start accepts. Automaton has 2724 states and 7655 transitions. Word has length 32 [2022-11-16 11:52:30,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:30,461 INFO L495 AbstractCegarLoop]: Abstraction has 2724 states and 7655 transitions. [2022-11-16 11:52:30,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:30,461 INFO L276 IsEmpty]: Start isEmpty. Operand 2724 states and 7655 transitions. [2022-11-16 11:52:30,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:30,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:30,464 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] [2022-11-16 11:52:30,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-11-16 11:52:30,465 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:30,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:30,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1838608056, now seen corresponding path program 70 times [2022-11-16 11:52:30,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:30,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101541858] [2022-11-16 11:52:30,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:30,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:30,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:30,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:30,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101541858] [2022-11-16 11:52:30,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101541858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:30,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:30,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:30,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083158401] [2022-11-16 11:52:30,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:30,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:30,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:30,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:30,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:30,685 INFO L87 Difference]: Start difference. First operand 2724 states and 7655 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:31,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:31,352 INFO L93 Difference]: Finished difference Result 4404 states and 11770 transitions. [2022-11-16 11:52:31,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:52:31,353 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:31,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:31,359 INFO L225 Difference]: With dead ends: 4404 [2022-11-16 11:52:31,359 INFO L226 Difference]: Without dead ends: 4234 [2022-11-16 11:52:31,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2022-11-16 11:52:31,359 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 115 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:31,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 0 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:52:31,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2022-11-16 11:52:31,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 2570. [2022-11-16 11:52:31,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2570 states, 2569 states have (on average 2.8166601790579993) internal successors, (7236), 2569 states have internal predecessors, (7236), 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) [2022-11-16 11:52:31,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2570 states to 2570 states and 7236 transitions. [2022-11-16 11:52:31,403 INFO L78 Accepts]: Start accepts. Automaton has 2570 states and 7236 transitions. Word has length 32 [2022-11-16 11:52:31,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:31,403 INFO L495 AbstractCegarLoop]: Abstraction has 2570 states and 7236 transitions. [2022-11-16 11:52:31,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:31,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2570 states and 7236 transitions. [2022-11-16 11:52:31,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:31,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:31,407 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] [2022-11-16 11:52:31,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-11-16 11:52:31,407 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:31,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:31,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1323646698, now seen corresponding path program 71 times [2022-11-16 11:52:31,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:31,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589988923] [2022-11-16 11:52:31,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:31,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:31,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:31,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:31,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589988923] [2022-11-16 11:52:31,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589988923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:31,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:31,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:52:31,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535912785] [2022-11-16 11:52:31,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:31,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:52:31,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:31,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:52:31,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:52:31,600 INFO L87 Difference]: Start difference. First operand 2570 states and 7236 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:31,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:31,805 INFO L93 Difference]: Finished difference Result 2620 states and 7312 transitions. [2022-11-16 11:52:31,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:52:31,805 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:31,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:31,809 INFO L225 Difference]: With dead ends: 2620 [2022-11-16 11:52:31,809 INFO L226 Difference]: Without dead ends: 2564 [2022-11-16 11:52:31,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:31,810 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 36 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:31,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 0 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:52:31,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2022-11-16 11:52:31,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 2560. [2022-11-16 11:52:31,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2560 states, 2559 states have (on average 2.815943728018757) internal successors, (7206), 2559 states have internal predecessors, (7206), 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) [2022-11-16 11:52:31,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 7206 transitions. [2022-11-16 11:52:31,843 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 7206 transitions. Word has length 32 [2022-11-16 11:52:31,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:31,843 INFO L495 AbstractCegarLoop]: Abstraction has 2560 states and 7206 transitions. [2022-11-16 11:52:31,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:31,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 7206 transitions. [2022-11-16 11:52:31,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:31,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:31,847 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] [2022-11-16 11:52:31,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-11-16 11:52:31,847 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:31,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:31,847 INFO L85 PathProgramCache]: Analyzing trace with hash 578965794, now seen corresponding path program 72 times [2022-11-16 11:52:31,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:31,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590478868] [2022-11-16 11:52:31,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:31,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:32,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:32,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:32,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590478868] [2022-11-16 11:52:32,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590478868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:32,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:32,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:52:32,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299005258] [2022-11-16 11:52:32,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:32,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:32,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:32,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:32,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:32,071 INFO L87 Difference]: Start difference. First operand 2560 states and 7206 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:32,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:32,289 INFO L93 Difference]: Finished difference Result 2588 states and 7252 transitions. [2022-11-16 11:52:32,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:52:32,289 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:32,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:32,293 INFO L225 Difference]: With dead ends: 2588 [2022-11-16 11:52:32,293 INFO L226 Difference]: Without dead ends: 2576 [2022-11-16 11:52:32,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:52:32,294 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:32,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 0 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:52:32,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2022-11-16 11:52:32,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 2568. [2022-11-16 11:52:32,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2568 states, 2567 states have (on average 2.8134008570315543) internal successors, (7222), 2567 states have internal predecessors, (7222), 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) [2022-11-16 11:52:32,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2568 states to 2568 states and 7222 transitions. [2022-11-16 11:52:32,327 INFO L78 Accepts]: Start accepts. Automaton has 2568 states and 7222 transitions. Word has length 32 [2022-11-16 11:52:32,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:32,327 INFO L495 AbstractCegarLoop]: Abstraction has 2568 states and 7222 transitions. [2022-11-16 11:52:32,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:32,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2568 states and 7222 transitions. [2022-11-16 11:52:32,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:32,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:32,330 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] [2022-11-16 11:52:32,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-11-16 11:52:32,330 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:32,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:32,330 INFO L85 PathProgramCache]: Analyzing trace with hash -94229480, now seen corresponding path program 73 times [2022-11-16 11:52:32,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:32,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529845733] [2022-11-16 11:52:32,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:32,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:32,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:32,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529845733] [2022-11-16 11:52:32,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529845733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:32,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:32,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:52:32,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596583878] [2022-11-16 11:52:32,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:32,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:32,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:32,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:32,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:32,530 INFO L87 Difference]: Start difference. First operand 2568 states and 7222 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:32,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:32,820 INFO L93 Difference]: Finished difference Result 2674 states and 7416 transitions. [2022-11-16 11:52:32,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:52:32,820 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:32,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:32,824 INFO L225 Difference]: With dead ends: 2674 [2022-11-16 11:52:32,824 INFO L226 Difference]: Without dead ends: 2650 [2022-11-16 11:52:32,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:52:32,825 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:32,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 0 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:32,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2022-11-16 11:52:32,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 2568. [2022-11-16 11:52:32,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2568 states, 2567 states have (on average 2.8134008570315543) internal successors, (7222), 2567 states have internal predecessors, (7222), 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) [2022-11-16 11:52:32,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2568 states to 2568 states and 7222 transitions. [2022-11-16 11:52:32,858 INFO L78 Accepts]: Start accepts. Automaton has 2568 states and 7222 transitions. Word has length 32 [2022-11-16 11:52:32,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:32,858 INFO L495 AbstractCegarLoop]: Abstraction has 2568 states and 7222 transitions. [2022-11-16 11:52:32,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:32,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2568 states and 7222 transitions. [2022-11-16 11:52:32,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:32,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:32,861 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] [2022-11-16 11:52:32,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-11-16 11:52:32,861 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:32,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:32,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1429745926, now seen corresponding path program 74 times [2022-11-16 11:52:32,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:32,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669766799] [2022-11-16 11:52:32,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:32,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:33,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:33,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:33,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669766799] [2022-11-16 11:52:33,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669766799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:33,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:33,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:52:33,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974770700] [2022-11-16 11:52:33,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:33,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:52:33,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:33,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:52:33,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:52:33,115 INFO L87 Difference]: Start difference. First operand 2568 states and 7222 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:33,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:33,348 INFO L93 Difference]: Finished difference Result 2626 states and 7310 transitions. [2022-11-16 11:52:33,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:52:33,348 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:33,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:33,352 INFO L225 Difference]: With dead ends: 2626 [2022-11-16 11:52:33,353 INFO L226 Difference]: Without dead ends: 2580 [2022-11-16 11:52:33,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:52:33,353 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:33,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 0 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:52:33,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2022-11-16 11:52:33,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2560. [2022-11-16 11:52:33,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2560 states, 2559 states have (on average 2.8120359515435718) internal successors, (7196), 2559 states have internal predecessors, (7196), 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) [2022-11-16 11:52:33,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 7196 transitions. [2022-11-16 11:52:33,387 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 7196 transitions. Word has length 32 [2022-11-16 11:52:33,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:33,387 INFO L495 AbstractCegarLoop]: Abstraction has 2560 states and 7196 transitions. [2022-11-16 11:52:33,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:33,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 7196 transitions. [2022-11-16 11:52:33,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:33,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:33,391 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] [2022-11-16 11:52:33,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-11-16 11:52:33,391 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:33,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:33,391 INFO L85 PathProgramCache]: Analyzing trace with hash 28010856, now seen corresponding path program 75 times [2022-11-16 11:52:33,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:33,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129049986] [2022-11-16 11:52:33,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:33,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:33,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:33,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:33,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129049986] [2022-11-16 11:52:33,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129049986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:33,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:33,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:52:33,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708366024] [2022-11-16 11:52:33,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:33,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:52:33,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:33,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:52:33,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:52:33,655 INFO L87 Difference]: Start difference. First operand 2560 states and 7196 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:33,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:33,968 INFO L93 Difference]: Finished difference Result 3808 states and 10139 transitions. [2022-11-16 11:52:33,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:52:33,969 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:33,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:33,974 INFO L225 Difference]: With dead ends: 3808 [2022-11-16 11:52:33,974 INFO L226 Difference]: Without dead ends: 3720 [2022-11-16 11:52:33,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:33,975 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 53 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:33,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 0 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:33,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3720 states. [2022-11-16 11:52:34,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3720 to 2652. [2022-11-16 11:52:34,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2652 states, 2651 states have (on average 2.771784232365145) internal successors, (7348), 2651 states have internal predecessors, (7348), 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) [2022-11-16 11:52:34,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2652 states to 2652 states and 7348 transitions. [2022-11-16 11:52:34,023 INFO L78 Accepts]: Start accepts. Automaton has 2652 states and 7348 transitions. Word has length 32 [2022-11-16 11:52:34,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:34,023 INFO L495 AbstractCegarLoop]: Abstraction has 2652 states and 7348 transitions. [2022-11-16 11:52:34,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:34,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2652 states and 7348 transitions. [2022-11-16 11:52:34,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:34,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:34,027 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] [2022-11-16 11:52:34,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-11-16 11:52:34,027 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:34,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:34,027 INFO L85 PathProgramCache]: Analyzing trace with hash 121464450, now seen corresponding path program 76 times [2022-11-16 11:52:34,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:34,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507184316] [2022-11-16 11:52:34,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:34,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:34,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:34,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:34,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507184316] [2022-11-16 11:52:34,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507184316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:34,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:34,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:34,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247353156] [2022-11-16 11:52:34,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:34,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:34,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:34,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:34,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:34,316 INFO L87 Difference]: Start difference. First operand 2652 states and 7348 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:34,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:34,543 INFO L93 Difference]: Finished difference Result 2664 states and 7364 transitions. [2022-11-16 11:52:34,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:52:34,544 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:34,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:34,548 INFO L225 Difference]: With dead ends: 2664 [2022-11-16 11:52:34,548 INFO L226 Difference]: Without dead ends: 2648 [2022-11-16 11:52:34,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:52:34,548 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:34,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 0 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:52:34,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2648 states. [2022-11-16 11:52:34,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2648 to 2648. [2022-11-16 11:52:34,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2648 states, 2647 states have (on average 2.7721949376652812) internal successors, (7338), 2647 states have internal predecessors, (7338), 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) [2022-11-16 11:52:34,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2648 states to 2648 states and 7338 transitions. [2022-11-16 11:52:34,581 INFO L78 Accepts]: Start accepts. Automaton has 2648 states and 7338 transitions. Word has length 32 [2022-11-16 11:52:34,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:34,581 INFO L495 AbstractCegarLoop]: Abstraction has 2648 states and 7338 transitions. [2022-11-16 11:52:34,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:34,581 INFO L276 IsEmpty]: Start isEmpty. Operand 2648 states and 7338 transitions. [2022-11-16 11:52:34,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:34,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:34,584 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] [2022-11-16 11:52:34,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-11-16 11:52:34,585 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:34,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:34,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1173192230, now seen corresponding path program 77 times [2022-11-16 11:52:34,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:34,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185700657] [2022-11-16 11:52:34,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:34,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:34,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:34,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:34,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:34,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185700657] [2022-11-16 11:52:34,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185700657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:34,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:34,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:34,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258460059] [2022-11-16 11:52:34,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:34,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:34,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:34,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:34,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:34,880 INFO L87 Difference]: Start difference. First operand 2648 states and 7338 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:35,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:35,096 INFO L93 Difference]: Finished difference Result 2664 states and 7364 transitions. [2022-11-16 11:52:35,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:52:35,096 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:35,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:35,100 INFO L225 Difference]: With dead ends: 2664 [2022-11-16 11:52:35,100 INFO L226 Difference]: Without dead ends: 2652 [2022-11-16 11:52:35,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:52:35,101 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 15 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:35,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 0 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:52:35,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2652 states. [2022-11-16 11:52:35,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2652 to 2652. [2022-11-16 11:52:35,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2652 states, 2651 states have (on average 2.7702753677857412) internal successors, (7344), 2651 states have internal predecessors, (7344), 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) [2022-11-16 11:52:35,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2652 states to 2652 states and 7344 transitions. [2022-11-16 11:52:35,135 INFO L78 Accepts]: Start accepts. Automaton has 2652 states and 7344 transitions. Word has length 32 [2022-11-16 11:52:35,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:35,135 INFO L495 AbstractCegarLoop]: Abstraction has 2652 states and 7344 transitions. [2022-11-16 11:52:35,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:35,135 INFO L276 IsEmpty]: Start isEmpty. Operand 2652 states and 7344 transitions. [2022-11-16 11:52:35,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:35,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:35,138 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] [2022-11-16 11:52:35,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-11-16 11:52:35,138 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:35,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:35,139 INFO L85 PathProgramCache]: Analyzing trace with hash -382495668, now seen corresponding path program 78 times [2022-11-16 11:52:35,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:35,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853494458] [2022-11-16 11:52:35,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:35,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:35,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:35,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:35,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853494458] [2022-11-16 11:52:35,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853494458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:35,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:35,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:35,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127943033] [2022-11-16 11:52:35,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:35,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:35,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:35,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:35,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:35,364 INFO L87 Difference]: Start difference. First operand 2652 states and 7344 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:35,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:35,747 INFO L93 Difference]: Finished difference Result 4034 states and 10699 transitions. [2022-11-16 11:52:35,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:52:35,748 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:35,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:35,753 INFO L225 Difference]: With dead ends: 4034 [2022-11-16 11:52:35,754 INFO L226 Difference]: Without dead ends: 3962 [2022-11-16 11:52:35,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:52:35,754 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 64 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:35,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 0 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:35,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3962 states. [2022-11-16 11:52:35,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3962 to 2640. [2022-11-16 11:52:35,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2640 states, 2639 states have (on average 2.7601364153088292) internal successors, (7284), 2639 states have internal predecessors, (7284), 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) [2022-11-16 11:52:35,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 2640 states and 7284 transitions. [2022-11-16 11:52:35,800 INFO L78 Accepts]: Start accepts. Automaton has 2640 states and 7284 transitions. Word has length 32 [2022-11-16 11:52:35,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:35,801 INFO L495 AbstractCegarLoop]: Abstraction has 2640 states and 7284 transitions. [2022-11-16 11:52:35,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:35,801 INFO L276 IsEmpty]: Start isEmpty. Operand 2640 states and 7284 transitions. [2022-11-16 11:52:35,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:35,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:35,806 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] [2022-11-16 11:52:35,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-11-16 11:52:35,806 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:35,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:35,806 INFO L85 PathProgramCache]: Analyzing trace with hash 660776994, now seen corresponding path program 79 times [2022-11-16 11:52:35,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:35,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056945870] [2022-11-16 11:52:35,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:35,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:36,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:36,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:36,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056945870] [2022-11-16 11:52:36,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056945870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:36,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:36,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:36,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687178445] [2022-11-16 11:52:36,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:36,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:36,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:36,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:36,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:36,090 INFO L87 Difference]: Start difference. First operand 2640 states and 7284 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:36,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:36,364 INFO L93 Difference]: Finished difference Result 2656 states and 7306 transitions. [2022-11-16 11:52:36,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:52:36,364 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:36,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:36,369 INFO L225 Difference]: With dead ends: 2656 [2022-11-16 11:52:36,369 INFO L226 Difference]: Without dead ends: 2636 [2022-11-16 11:52:36,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:52:36,370 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:36,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 0 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:52:36,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2022-11-16 11:52:36,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2632. [2022-11-16 11:52:36,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2632 states, 2631 states have (on average 2.7609274040288865) internal successors, (7264), 2631 states have internal predecessors, (7264), 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) [2022-11-16 11:52:36,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2632 states to 2632 states and 7264 transitions. [2022-11-16 11:52:36,411 INFO L78 Accepts]: Start accepts. Automaton has 2632 states and 7264 transitions. Word has length 32 [2022-11-16 11:52:36,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:36,411 INFO L495 AbstractCegarLoop]: Abstraction has 2632 states and 7264 transitions. [2022-11-16 11:52:36,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:36,411 INFO L276 IsEmpty]: Start isEmpty. Operand 2632 states and 7264 transitions. [2022-11-16 11:52:36,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:36,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:36,415 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] [2022-11-16 11:52:36,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-11-16 11:52:36,415 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:36,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:36,415 INFO L85 PathProgramCache]: Analyzing trace with hash 144209876, now seen corresponding path program 80 times [2022-11-16 11:52:36,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:36,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653977346] [2022-11-16 11:52:36,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:36,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:36,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:36,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:36,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653977346] [2022-11-16 11:52:36,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653977346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:36,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:36,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:36,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466023979] [2022-11-16 11:52:36,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:36,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:36,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:36,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:36,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:36,692 INFO L87 Difference]: Start difference. First operand 2632 states and 7264 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:36,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:36,903 INFO L93 Difference]: Finished difference Result 2640 states and 7274 transitions. [2022-11-16 11:52:36,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:52:36,904 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:36,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:36,908 INFO L225 Difference]: With dead ends: 2640 [2022-11-16 11:52:36,908 INFO L226 Difference]: Without dead ends: 2624 [2022-11-16 11:52:36,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:52:36,908 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:36,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 0 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:52:36,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2022-11-16 11:52:36,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 2624. [2022-11-16 11:52:36,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2624 states, 2623 states have (on average 2.7632481890964544) internal successors, (7248), 2623 states have internal predecessors, (7248), 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) [2022-11-16 11:52:36,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2624 states to 2624 states and 7248 transitions. [2022-11-16 11:52:36,958 INFO L78 Accepts]: Start accepts. Automaton has 2624 states and 7248 transitions. Word has length 32 [2022-11-16 11:52:36,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:36,958 INFO L495 AbstractCegarLoop]: Abstraction has 2624 states and 7248 transitions. [2022-11-16 11:52:36,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:36,959 INFO L276 IsEmpty]: Start isEmpty. Operand 2624 states and 7248 transitions. [2022-11-16 11:52:36,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:36,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:36,963 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] [2022-11-16 11:52:36,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-11-16 11:52:36,964 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:36,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:36,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1449795850, now seen corresponding path program 81 times [2022-11-16 11:52:36,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:36,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787266794] [2022-11-16 11:52:36,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:36,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:37,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:37,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:37,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787266794] [2022-11-16 11:52:37,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787266794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:37,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:37,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:52:37,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150445128] [2022-11-16 11:52:37,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:37,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:37,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:37,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:37,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:37,190 INFO L87 Difference]: Start difference. First operand 2624 states and 7248 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:37,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:37,530 INFO L93 Difference]: Finished difference Result 4000 states and 10352 transitions. [2022-11-16 11:52:37,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:52:37,530 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:37,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:37,536 INFO L225 Difference]: With dead ends: 4000 [2022-11-16 11:52:37,536 INFO L226 Difference]: Without dead ends: 3854 [2022-11-16 11:52:37,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:37,536 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 87 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:37,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 0 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:37,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3854 states. [2022-11-16 11:52:37,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3854 to 2526. [2022-11-16 11:52:37,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2526 states, 2525 states have (on average 2.72990099009901) internal successors, (6893), 2525 states have internal predecessors, (6893), 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) [2022-11-16 11:52:37,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2526 states to 2526 states and 6893 transitions. [2022-11-16 11:52:37,577 INFO L78 Accepts]: Start accepts. Automaton has 2526 states and 6893 transitions. Word has length 32 [2022-11-16 11:52:37,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:37,577 INFO L495 AbstractCegarLoop]: Abstraction has 2526 states and 6893 transitions. [2022-11-16 11:52:37,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:37,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2526 states and 6893 transitions. [2022-11-16 11:52:37,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:37,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:37,581 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] [2022-11-16 11:52:37,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-11-16 11:52:37,582 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:37,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:37,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1088796738, now seen corresponding path program 82 times [2022-11-16 11:52:37,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:37,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319126037] [2022-11-16 11:52:37,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:37,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:37,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:37,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:37,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319126037] [2022-11-16 11:52:37,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319126037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:37,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:37,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:52:37,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407229272] [2022-11-16 11:52:37,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:37,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:37,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:37,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:37,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:37,892 INFO L87 Difference]: Start difference. First operand 2526 states and 6893 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:38,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:38,320 INFO L93 Difference]: Finished difference Result 3680 states and 9207 transitions. [2022-11-16 11:52:38,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:52:38,320 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:38,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:38,325 INFO L225 Difference]: With dead ends: 3680 [2022-11-16 11:52:38,325 INFO L226 Difference]: Without dead ends: 3566 [2022-11-16 11:52:38,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:52:38,326 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 72 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:38,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 0 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:38,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3566 states. [2022-11-16 11:52:38,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3566 to 2426. [2022-11-16 11:52:38,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2426 states, 2425 states have (on average 2.6511340206185565) internal successors, (6429), 2425 states have internal predecessors, (6429), 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) [2022-11-16 11:52:38,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2426 states to 2426 states and 6429 transitions. [2022-11-16 11:52:38,377 INFO L78 Accepts]: Start accepts. Automaton has 2426 states and 6429 transitions. Word has length 32 [2022-11-16 11:52:38,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:38,377 INFO L495 AbstractCegarLoop]: Abstraction has 2426 states and 6429 transitions. [2022-11-16 11:52:38,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:38,378 INFO L276 IsEmpty]: Start isEmpty. Operand 2426 states and 6429 transitions. [2022-11-16 11:52:38,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:38,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:38,382 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] [2022-11-16 11:52:38,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-11-16 11:52:38,382 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:38,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:38,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1209516780, now seen corresponding path program 83 times [2022-11-16 11:52:38,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:38,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676690935] [2022-11-16 11:52:38,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:38,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:38,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:38,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:38,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676690935] [2022-11-16 11:52:38,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676690935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:38,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:38,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:38,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16606909] [2022-11-16 11:52:38,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:38,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:38,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:38,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:38,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:38,621 INFO L87 Difference]: Start difference. First operand 2426 states and 6429 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:39,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:39,170 INFO L93 Difference]: Finished difference Result 3914 states and 9708 transitions. [2022-11-16 11:52:39,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:52:39,171 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:39,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:39,175 INFO L225 Difference]: With dead ends: 3914 [2022-11-16 11:52:39,175 INFO L226 Difference]: Without dead ends: 3704 [2022-11-16 11:52:39,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:52:39,176 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 89 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:39,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 0 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:52:39,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2022-11-16 11:52:39,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 2476. [2022-11-16 11:52:39,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 2475 states have (on average 2.6254545454545455) internal successors, (6498), 2475 states have internal predecessors, (6498), 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) [2022-11-16 11:52:39,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 6498 transitions. [2022-11-16 11:52:39,214 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 6498 transitions. Word has length 32 [2022-11-16 11:52:39,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:39,214 INFO L495 AbstractCegarLoop]: Abstraction has 2476 states and 6498 transitions. [2022-11-16 11:52:39,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:39,214 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 6498 transitions. [2022-11-16 11:52:39,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:39,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:39,217 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] [2022-11-16 11:52:39,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-11-16 11:52:39,217 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:39,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:39,217 INFO L85 PathProgramCache]: Analyzing trace with hash 582471266, now seen corresponding path program 84 times [2022-11-16 11:52:39,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:39,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123210545] [2022-11-16 11:52:39,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:39,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:39,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:39,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:39,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123210545] [2022-11-16 11:52:39,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123210545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:39,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:39,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:52:39,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771987856] [2022-11-16 11:52:39,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:39,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:52:39,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:39,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:52:39,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:52:39,420 INFO L87 Difference]: Start difference. First operand 2476 states and 6498 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:39,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:39,806 INFO L93 Difference]: Finished difference Result 3840 states and 9490 transitions. [2022-11-16 11:52:39,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:52:39,807 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:39,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:39,812 INFO L225 Difference]: With dead ends: 3840 [2022-11-16 11:52:39,812 INFO L226 Difference]: Without dead ends: 3726 [2022-11-16 11:52:39,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:52:39,812 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 92 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:39,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 0 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:39,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3726 states. [2022-11-16 11:52:39,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3726 to 2274. [2022-11-16 11:52:39,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 2273 states have (on average 2.630884293884734) internal successors, (5980), 2273 states have internal predecessors, (5980), 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) [2022-11-16 11:52:39,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 5980 transitions. [2022-11-16 11:52:39,849 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 5980 transitions. Word has length 32 [2022-11-16 11:52:39,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:39,849 INFO L495 AbstractCegarLoop]: Abstraction has 2274 states and 5980 transitions. [2022-11-16 11:52:39,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 9 states have internal predecessors, (32), 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) [2022-11-16 11:52:39,849 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 5980 transitions. [2022-11-16 11:52:39,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:39,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:39,851 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] [2022-11-16 11:52:39,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-11-16 11:52:39,852 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:39,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:39,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1280426, now seen corresponding path program 85 times [2022-11-16 11:52:39,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:39,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018659240] [2022-11-16 11:52:39,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:39,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:40,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:40,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:40,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018659240] [2022-11-16 11:52:40,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018659240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:40,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:40,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:40,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556307165] [2022-11-16 11:52:40,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:40,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:40,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:40,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:40,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:40,058 INFO L87 Difference]: Start difference. First operand 2274 states and 5980 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:40,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:40,639 INFO L93 Difference]: Finished difference Result 3406 states and 8472 transitions. [2022-11-16 11:52:40,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:52:40,639 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:40,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:40,644 INFO L225 Difference]: With dead ends: 3406 [2022-11-16 11:52:40,644 INFO L226 Difference]: Without dead ends: 3330 [2022-11-16 11:52:40,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:52:40,645 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 122 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:40,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 0 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:52:40,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2022-11-16 11:52:40,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 2250. [2022-11-16 11:52:40,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2250 states, 2249 states have (on average 2.6153846153846154) internal successors, (5882), 2249 states have internal predecessors, (5882), 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) [2022-11-16 11:52:40,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2250 states to 2250 states and 5882 transitions. [2022-11-16 11:52:40,680 INFO L78 Accepts]: Start accepts. Automaton has 2250 states and 5882 transitions. Word has length 32 [2022-11-16 11:52:40,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:40,681 INFO L495 AbstractCegarLoop]: Abstraction has 2250 states and 5882 transitions. [2022-11-16 11:52:40,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:40,681 INFO L276 IsEmpty]: Start isEmpty. Operand 2250 states and 5882 transitions. [2022-11-16 11:52:40,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:40,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:40,683 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] [2022-11-16 11:52:40,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-11-16 11:52:40,684 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:40,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:40,684 INFO L85 PathProgramCache]: Analyzing trace with hash -649823832, now seen corresponding path program 86 times [2022-11-16 11:52:40,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:40,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105831908] [2022-11-16 11:52:40,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:40,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:40,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:40,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:40,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105831908] [2022-11-16 11:52:40,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105831908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:40,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:40,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:40,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010508954] [2022-11-16 11:52:40,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:40,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:40,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:40,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:40,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:40,976 INFO L87 Difference]: Start difference. First operand 2250 states and 5882 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:41,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:41,493 INFO L93 Difference]: Finished difference Result 3230 states and 7982 transitions. [2022-11-16 11:52:41,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:52:41,493 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:41,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:41,497 INFO L225 Difference]: With dead ends: 3230 [2022-11-16 11:52:41,498 INFO L226 Difference]: Without dead ends: 2952 [2022-11-16 11:52:41,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:52:41,498 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 108 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:41,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 0 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:41,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2022-11-16 11:52:41,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 2142. [2022-11-16 11:52:41,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2142 states, 2141 states have (on average 2.5983185427370388) internal successors, (5563), 2141 states have internal predecessors, (5563), 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) [2022-11-16 11:52:41,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2142 states to 2142 states and 5563 transitions. [2022-11-16 11:52:41,529 INFO L78 Accepts]: Start accepts. Automaton has 2142 states and 5563 transitions. Word has length 32 [2022-11-16 11:52:41,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:41,529 INFO L495 AbstractCegarLoop]: Abstraction has 2142 states and 5563 transitions. [2022-11-16 11:52:41,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:41,530 INFO L276 IsEmpty]: Start isEmpty. Operand 2142 states and 5563 transitions. [2022-11-16 11:52:41,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:41,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:41,533 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] [2022-11-16 11:52:41,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-11-16 11:52:41,533 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:41,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:41,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1247771798, now seen corresponding path program 87 times [2022-11-16 11:52:41,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:41,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230196935] [2022-11-16 11:52:41,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:41,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:41,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:41,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:41,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230196935] [2022-11-16 11:52:41,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230196935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:41,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:41,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:41,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469312969] [2022-11-16 11:52:41,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:41,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:41,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:41,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:41,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:41,730 INFO L87 Difference]: Start difference. First operand 2142 states and 5563 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:42,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:42,251 INFO L93 Difference]: Finished difference Result 3000 states and 7353 transitions. [2022-11-16 11:52:42,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:52:42,251 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:42,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:42,256 INFO L225 Difference]: With dead ends: 3000 [2022-11-16 11:52:42,256 INFO L226 Difference]: Without dead ends: 2904 [2022-11-16 11:52:42,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:52:42,256 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 113 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:42,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 0 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:52:42,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2022-11-16 11:52:42,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 2050. [2022-11-16 11:52:42,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2050 states, 2049 states have (on average 2.587603709126403) internal successors, (5302), 2049 states have internal predecessors, (5302), 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) [2022-11-16 11:52:42,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 5302 transitions. [2022-11-16 11:52:42,287 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 5302 transitions. Word has length 32 [2022-11-16 11:52:42,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:42,287 INFO L495 AbstractCegarLoop]: Abstraction has 2050 states and 5302 transitions. [2022-11-16 11:52:42,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:42,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 5302 transitions. [2022-11-16 11:52:42,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:42,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:42,290 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:52:42,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-11-16 11:52:42,290 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:42,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:42,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1056652364, now seen corresponding path program 88 times [2022-11-16 11:52:42,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:42,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135044516] [2022-11-16 11:52:42,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:42,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:42,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:42,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:42,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135044516] [2022-11-16 11:52:42,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135044516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:42,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:42,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:42,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756926177] [2022-11-16 11:52:42,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:42,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:42,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:42,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:42,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:42,463 INFO L87 Difference]: Start difference. First operand 2050 states and 5302 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:42,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:42,983 INFO L93 Difference]: Finished difference Result 2810 states and 6831 transitions. [2022-11-16 11:52:42,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:52:42,983 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:42,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:42,987 INFO L225 Difference]: With dead ends: 2810 [2022-11-16 11:52:42,987 INFO L226 Difference]: Without dead ends: 2694 [2022-11-16 11:52:42,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:52:42,987 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 131 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:42,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 0 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:52:42,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2022-11-16 11:52:43,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 1896. [2022-11-16 11:52:43,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1896 states, 1895 states have (on average 2.582058047493404) internal successors, (4893), 1895 states have internal predecessors, (4893), 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) [2022-11-16 11:52:43,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1896 states to 1896 states and 4893 transitions. [2022-11-16 11:52:43,013 INFO L78 Accepts]: Start accepts. Automaton has 1896 states and 4893 transitions. Word has length 32 [2022-11-16 11:52:43,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:43,013 INFO L495 AbstractCegarLoop]: Abstraction has 1896 states and 4893 transitions. [2022-11-16 11:52:43,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:43,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1896 states and 4893 transitions. [2022-11-16 11:52:43,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:43,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:43,016 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] [2022-11-16 11:52:43,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-11-16 11:52:43,016 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:43,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:43,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1220306286, now seen corresponding path program 89 times [2022-11-16 11:52:43,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:43,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779867553] [2022-11-16 11:52:43,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:43,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:43,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:43,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:43,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779867553] [2022-11-16 11:52:43,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779867553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:43,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:43,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:43,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884459639] [2022-11-16 11:52:43,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:43,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:43,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:43,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:43,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:43,289 INFO L87 Difference]: Start difference. First operand 1896 states and 4893 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:43,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:43,833 INFO L93 Difference]: Finished difference Result 2082 states and 5307 transitions. [2022-11-16 11:52:43,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:52:43,833 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:43,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:43,836 INFO L225 Difference]: With dead ends: 2082 [2022-11-16 11:52:43,836 INFO L226 Difference]: Without dead ends: 2064 [2022-11-16 11:52:43,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:52:43,836 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 57 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:43,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 0 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:43,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2064 states. [2022-11-16 11:52:43,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2064 to 1910. [2022-11-16 11:52:43,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1910 states, 1909 states have (on average 2.5793609219486644) internal successors, (4924), 1909 states have internal predecessors, (4924), 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) [2022-11-16 11:52:43,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 4924 transitions. [2022-11-16 11:52:43,860 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 4924 transitions. Word has length 32 [2022-11-16 11:52:43,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:43,860 INFO L495 AbstractCegarLoop]: Abstraction has 1910 states and 4924 transitions. [2022-11-16 11:52:43,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:43,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 4924 transitions. [2022-11-16 11:52:43,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:43,862 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:43,863 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] [2022-11-16 11:52:43,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-11-16 11:52:43,863 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:43,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:43,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1991516846, now seen corresponding path program 90 times [2022-11-16 11:52:43,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:43,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666562705] [2022-11-16 11:52:43,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:43,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:44,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:44,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:44,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666562705] [2022-11-16 11:52:44,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666562705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:44,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:44,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:44,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992025226] [2022-11-16 11:52:44,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:44,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:44,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:44,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:44,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:44,110 INFO L87 Difference]: Start difference. First operand 1910 states and 4924 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:44,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:44,624 INFO L93 Difference]: Finished difference Result 2432 states and 6100 transitions. [2022-11-16 11:52:44,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:52:44,624 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:44,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:44,628 INFO L225 Difference]: With dead ends: 2432 [2022-11-16 11:52:44,628 INFO L226 Difference]: Without dead ends: 2422 [2022-11-16 11:52:44,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:52:44,628 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:44,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 0 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:44,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2422 states. [2022-11-16 11:52:44,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2422 to 1946. [2022-11-16 11:52:44,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1946 states, 1945 states have (on average 2.576349614395887) internal successors, (5011), 1945 states have internal predecessors, (5011), 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) [2022-11-16 11:52:44,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 5011 transitions. [2022-11-16 11:52:44,654 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 5011 transitions. Word has length 32 [2022-11-16 11:52:44,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:44,655 INFO L495 AbstractCegarLoop]: Abstraction has 1946 states and 5011 transitions. [2022-11-16 11:52:44,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:44,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 5011 transitions. [2022-11-16 11:52:44,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:44,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:44,657 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] [2022-11-16 11:52:44,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-11-16 11:52:44,657 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:44,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:44,657 INFO L85 PathProgramCache]: Analyzing trace with hash -823491400, now seen corresponding path program 91 times [2022-11-16 11:52:44,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:44,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662282051] [2022-11-16 11:52:44,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:44,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:44,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:44,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:44,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662282051] [2022-11-16 11:52:44,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662282051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:44,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:44,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:44,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457344851] [2022-11-16 11:52:44,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:44,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:44,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:44,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:44,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:44,845 INFO L87 Difference]: Start difference. First operand 1946 states and 5011 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:45,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:45,248 INFO L93 Difference]: Finished difference Result 3352 states and 8190 transitions. [2022-11-16 11:52:45,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:52:45,248 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:45,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:45,253 INFO L225 Difference]: With dead ends: 3352 [2022-11-16 11:52:45,253 INFO L226 Difference]: Without dead ends: 3312 [2022-11-16 11:52:45,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:52:45,253 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 77 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:45,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 0 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:45,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2022-11-16 11:52:45,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 1848. [2022-11-16 11:52:45,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1848 states, 1847 states have (on average 2.572820790471034) internal successors, (4752), 1847 states have internal predecessors, (4752), 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) [2022-11-16 11:52:45,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1848 states to 1848 states and 4752 transitions. [2022-11-16 11:52:45,281 INFO L78 Accepts]: Start accepts. Automaton has 1848 states and 4752 transitions. Word has length 32 [2022-11-16 11:52:45,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:45,281 INFO L495 AbstractCegarLoop]: Abstraction has 1848 states and 4752 transitions. [2022-11-16 11:52:45,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:45,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1848 states and 4752 transitions. [2022-11-16 11:52:45,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:45,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:45,283 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] [2022-11-16 11:52:45,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-11-16 11:52:45,283 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:45,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:45,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1941669372, now seen corresponding path program 92 times [2022-11-16 11:52:45,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:45,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193300767] [2022-11-16 11:52:45,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:45,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:45,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:45,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:45,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193300767] [2022-11-16 11:52:45,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193300767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:45,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:45,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:45,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782412938] [2022-11-16 11:52:45,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:45,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:45,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:45,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:45,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:45,565 INFO L87 Difference]: Start difference. First operand 1848 states and 4752 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:46,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:46,006 INFO L93 Difference]: Finished difference Result 2000 states and 5073 transitions. [2022-11-16 11:52:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:52:46,007 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:46,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:46,010 INFO L225 Difference]: With dead ends: 2000 [2022-11-16 11:52:46,010 INFO L226 Difference]: Without dead ends: 1970 [2022-11-16 11:52:46,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:52:46,010 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 52 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:46,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 0 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:46,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2022-11-16 11:52:46,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1846. [2022-11-16 11:52:46,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1846 states, 1845 states have (on average 2.5739837398373986) internal successors, (4749), 1845 states have internal predecessors, (4749), 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) [2022-11-16 11:52:46,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 4749 transitions. [2022-11-16 11:52:46,035 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 4749 transitions. Word has length 32 [2022-11-16 11:52:46,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:46,035 INFO L495 AbstractCegarLoop]: Abstraction has 1846 states and 4749 transitions. [2022-11-16 11:52:46,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:46,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 4749 transitions. [2022-11-16 11:52:46,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:46,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:46,037 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] [2022-11-16 11:52:46,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-11-16 11:52:46,037 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:46,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:46,038 INFO L85 PathProgramCache]: Analyzing trace with hash -301622728, now seen corresponding path program 93 times [2022-11-16 11:52:46,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:46,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328285716] [2022-11-16 11:52:46,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:46,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:46,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:46,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:46,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328285716] [2022-11-16 11:52:46,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328285716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:46,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:46,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:46,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774483191] [2022-11-16 11:52:46,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:46,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:46,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:46,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:46,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:46,258 INFO L87 Difference]: Start difference. First operand 1846 states and 4749 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:46,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:46,719 INFO L93 Difference]: Finished difference Result 1986 states and 5067 transitions. [2022-11-16 11:52:46,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:52:46,719 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:46,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:46,722 INFO L225 Difference]: With dead ends: 1986 [2022-11-16 11:52:46,722 INFO L226 Difference]: Without dead ends: 1920 [2022-11-16 11:52:46,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:52:46,723 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 52 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:46,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 0 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:46,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2022-11-16 11:52:46,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 1842. [2022-11-16 11:52:46,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1842 states, 1841 states have (on average 2.56762629005975) internal successors, (4727), 1841 states have internal predecessors, (4727), 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) [2022-11-16 11:52:46,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 1842 states and 4727 transitions. [2022-11-16 11:52:46,760 INFO L78 Accepts]: Start accepts. Automaton has 1842 states and 4727 transitions. Word has length 32 [2022-11-16 11:52:46,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:46,760 INFO L495 AbstractCegarLoop]: Abstraction has 1842 states and 4727 transitions. [2022-11-16 11:52:46,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:46,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1842 states and 4727 transitions. [2022-11-16 11:52:46,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:46,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:46,764 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] [2022-11-16 11:52:46,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-11-16 11:52:46,764 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:46,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:46,764 INFO L85 PathProgramCache]: Analyzing trace with hash 182825504, now seen corresponding path program 94 times [2022-11-16 11:52:46,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:46,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474269475] [2022-11-16 11:52:46,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:46,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:47,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:47,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:47,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474269475] [2022-11-16 11:52:47,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474269475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:47,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:47,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:47,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127531661] [2022-11-16 11:52:47,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:47,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:47,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:47,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:47,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:47,010 INFO L87 Difference]: Start difference. First operand 1842 states and 4727 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:47,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:47,492 INFO L93 Difference]: Finished difference Result 2036 states and 5179 transitions. [2022-11-16 11:52:47,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:52:47,493 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:47,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:47,496 INFO L225 Difference]: With dead ends: 2036 [2022-11-16 11:52:47,496 INFO L226 Difference]: Without dead ends: 1982 [2022-11-16 11:52:47,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:52:47,496 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 61 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:47,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 0 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:47,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2022-11-16 11:52:47,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1844. [2022-11-16 11:52:47,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1843 states have (on average 2.5610417797069993) internal successors, (4720), 1843 states have internal predecessors, (4720), 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) [2022-11-16 11:52:47,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 4720 transitions. [2022-11-16 11:52:47,522 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 4720 transitions. Word has length 32 [2022-11-16 11:52:47,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:47,522 INFO L495 AbstractCegarLoop]: Abstraction has 1844 states and 4720 transitions. [2022-11-16 11:52:47,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:47,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 4720 transitions. [2022-11-16 11:52:47,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:47,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:47,524 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] [2022-11-16 11:52:47,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-11-16 11:52:47,525 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:47,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:47,525 INFO L85 PathProgramCache]: Analyzing trace with hash 499072846, now seen corresponding path program 95 times [2022-11-16 11:52:47,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:47,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345430503] [2022-11-16 11:52:47,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:47,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:47,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:47,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:47,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345430503] [2022-11-16 11:52:47,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345430503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:47,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:47,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:47,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714990794] [2022-11-16 11:52:47,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:47,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:47,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:47,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:47,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:47,785 INFO L87 Difference]: Start difference. First operand 1844 states and 4720 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:48,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:48,392 INFO L93 Difference]: Finished difference Result 2296 states and 5731 transitions. [2022-11-16 11:52:48,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:52:48,393 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:48,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:48,397 INFO L225 Difference]: With dead ends: 2296 [2022-11-16 11:52:48,397 INFO L226 Difference]: Without dead ends: 2266 [2022-11-16 11:52:48,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:52:48,398 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 66 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:48,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 0 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:52:48,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2266 states. [2022-11-16 11:52:48,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2266 to 1866. [2022-11-16 11:52:48,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1866 states, 1865 states have (on average 2.553887399463807) internal successors, (4763), 1865 states have internal predecessors, (4763), 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) [2022-11-16 11:52:48,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 4763 transitions. [2022-11-16 11:52:48,436 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 4763 transitions. Word has length 32 [2022-11-16 11:52:48,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:48,437 INFO L495 AbstractCegarLoop]: Abstraction has 1866 states and 4763 transitions. [2022-11-16 11:52:48,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:48,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 4763 transitions. [2022-11-16 11:52:48,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:48,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:48,443 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] [2022-11-16 11:52:48,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-11-16 11:52:48,443 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:48,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:48,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1412319808, now seen corresponding path program 96 times [2022-11-16 11:52:48,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:48,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642326343] [2022-11-16 11:52:48,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:48,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:48,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:48,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:48,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642326343] [2022-11-16 11:52:48,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642326343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:48,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:48,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:48,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513888655] [2022-11-16 11:52:48,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:48,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:48,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:48,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:48,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:48,642 INFO L87 Difference]: Start difference. First operand 1866 states and 4763 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:49,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:49,103 INFO L93 Difference]: Finished difference Result 3232 states and 7882 transitions. [2022-11-16 11:52:49,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:52:49,104 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:49,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:49,108 INFO L225 Difference]: With dead ends: 3232 [2022-11-16 11:52:49,108 INFO L226 Difference]: Without dead ends: 3150 [2022-11-16 11:52:49,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:52:49,111 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 80 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:49,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 0 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:49,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3150 states. [2022-11-16 11:52:49,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3150 to 1800. [2022-11-16 11:52:49,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1799 states have (on average 2.5636464702612565) internal successors, (4612), 1799 states have internal predecessors, (4612), 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) [2022-11-16 11:52:49,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 4612 transitions. [2022-11-16 11:52:49,156 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 4612 transitions. Word has length 32 [2022-11-16 11:52:49,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:49,157 INFO L495 AbstractCegarLoop]: Abstraction has 1800 states and 4612 transitions. [2022-11-16 11:52:49,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:49,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 4612 transitions. [2022-11-16 11:52:49,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:49,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:49,160 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] [2022-11-16 11:52:49,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-11-16 11:52:49,161 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:49,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:49,161 INFO L85 PathProgramCache]: Analyzing trace with hash 2123863932, now seen corresponding path program 97 times [2022-11-16 11:52:49,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:49,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572154066] [2022-11-16 11:52:49,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:49,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:49,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:49,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:49,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572154066] [2022-11-16 11:52:49,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572154066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:49,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:49,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:49,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862407946] [2022-11-16 11:52:49,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:49,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:49,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:49,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:49,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:49,411 INFO L87 Difference]: Start difference. First operand 1800 states and 4612 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:49,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:49,849 INFO L93 Difference]: Finished difference Result 1970 states and 4963 transitions. [2022-11-16 11:52:49,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:52:49,850 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:49,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:49,852 INFO L225 Difference]: With dead ends: 1970 [2022-11-16 11:52:49,852 INFO L226 Difference]: Without dead ends: 1948 [2022-11-16 11:52:49,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:52:49,853 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 64 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:49,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 0 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:49,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2022-11-16 11:52:49,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1806. [2022-11-16 11:52:49,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1806 states, 1805 states have (on average 2.5601108033240996) internal successors, (4621), 1805 states have internal predecessors, (4621), 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) [2022-11-16 11:52:49,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1806 states to 1806 states and 4621 transitions. [2022-11-16 11:52:49,876 INFO L78 Accepts]: Start accepts. Automaton has 1806 states and 4621 transitions. Word has length 32 [2022-11-16 11:52:49,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:49,876 INFO L495 AbstractCegarLoop]: Abstraction has 1806 states and 4621 transitions. [2022-11-16 11:52:49,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:49,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1806 states and 4621 transitions. [2022-11-16 11:52:49,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:49,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:49,878 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] [2022-11-16 11:52:49,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-11-16 11:52:49,878 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:49,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:49,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1555016926, now seen corresponding path program 98 times [2022-11-16 11:52:49,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:49,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411241306] [2022-11-16 11:52:49,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:49,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:50,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:50,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:50,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411241306] [2022-11-16 11:52:50,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411241306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:50,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:50,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:50,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665394654] [2022-11-16 11:52:50,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:50,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:50,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:50,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:50,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:50,101 INFO L87 Difference]: Start difference. First operand 1806 states and 4621 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:50,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:50,586 INFO L93 Difference]: Finished difference Result 2030 states and 5100 transitions. [2022-11-16 11:52:50,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:52:50,587 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:50,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:50,590 INFO L225 Difference]: With dead ends: 2030 [2022-11-16 11:52:50,590 INFO L226 Difference]: Without dead ends: 2012 [2022-11-16 11:52:50,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:52:50,590 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 76 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:50,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 0 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:50,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2012 states. [2022-11-16 11:52:50,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2012 to 1796. [2022-11-16 11:52:50,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1796 states, 1795 states have (on average 2.5649025069637883) internal successors, (4604), 1795 states have internal predecessors, (4604), 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) [2022-11-16 11:52:50,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1796 states to 1796 states and 4604 transitions. [2022-11-16 11:52:50,613 INFO L78 Accepts]: Start accepts. Automaton has 1796 states and 4604 transitions. Word has length 32 [2022-11-16 11:52:50,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:50,613 INFO L495 AbstractCegarLoop]: Abstraction has 1796 states and 4604 transitions. [2022-11-16 11:52:50,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:50,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1796 states and 4604 transitions. [2022-11-16 11:52:50,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:50,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:50,616 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] [2022-11-16 11:52:50,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-11-16 11:52:50,616 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:50,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:50,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1684667006, now seen corresponding path program 99 times [2022-11-16 11:52:50,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:50,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180016788] [2022-11-16 11:52:50,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:50,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:50,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:50,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:50,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180016788] [2022-11-16 11:52:50,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180016788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:50,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:50,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:50,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232305484] [2022-11-16 11:52:50,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:50,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:50,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:50,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:50,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:50,899 INFO L87 Difference]: Start difference. First operand 1796 states and 4604 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:51,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:51,382 INFO L93 Difference]: Finished difference Result 3188 states and 7724 transitions. [2022-11-16 11:52:51,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:52:51,382 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:51,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:51,386 INFO L225 Difference]: With dead ends: 3188 [2022-11-16 11:52:51,386 INFO L226 Difference]: Without dead ends: 3180 [2022-11-16 11:52:51,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:52:51,387 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 85 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:51,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 0 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:51,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states. [2022-11-16 11:52:51,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 1806. [2022-11-16 11:52:51,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1806 states, 1805 states have (on average 2.559556786703601) internal successors, (4620), 1805 states have internal predecessors, (4620), 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) [2022-11-16 11:52:51,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1806 states to 1806 states and 4620 transitions. [2022-11-16 11:52:51,415 INFO L78 Accepts]: Start accepts. Automaton has 1806 states and 4620 transitions. Word has length 32 [2022-11-16 11:52:51,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:51,416 INFO L495 AbstractCegarLoop]: Abstraction has 1806 states and 4620 transitions. [2022-11-16 11:52:51,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:51,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1806 states and 4620 transitions. [2022-11-16 11:52:51,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:51,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:51,418 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] [2022-11-16 11:52:51,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-11-16 11:52:51,418 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:51,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:51,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1560192338, now seen corresponding path program 100 times [2022-11-16 11:52:51,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:51,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344625135] [2022-11-16 11:52:51,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:51,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:51,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:51,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:51,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344625135] [2022-11-16 11:52:51,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344625135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:51,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:51,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:51,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646238791] [2022-11-16 11:52:51,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:51,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:51,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:51,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:51,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:51,636 INFO L87 Difference]: Start difference. First operand 1806 states and 4620 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:52,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:52,081 INFO L93 Difference]: Finished difference Result 2264 states and 5585 transitions. [2022-11-16 11:52:52,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:52:52,081 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:52,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:52,084 INFO L225 Difference]: With dead ends: 2264 [2022-11-16 11:52:52,084 INFO L226 Difference]: Without dead ends: 2226 [2022-11-16 11:52:52,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:52:52,085 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 85 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:52,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 0 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:52,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2022-11-16 11:52:52,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 1746. [2022-11-16 11:52:52,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1746 states, 1745 states have (on average 2.567335243553009) internal successors, (4480), 1745 states have internal predecessors, (4480), 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) [2022-11-16 11:52:52,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1746 states to 1746 states and 4480 transitions. [2022-11-16 11:52:52,109 INFO L78 Accepts]: Start accepts. Automaton has 1746 states and 4480 transitions. Word has length 32 [2022-11-16 11:52:52,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:52,110 INFO L495 AbstractCegarLoop]: Abstraction has 1746 states and 4480 transitions. [2022-11-16 11:52:52,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:52,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1746 states and 4480 transitions. [2022-11-16 11:52:52,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:52,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:52,112 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] [2022-11-16 11:52:52,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-11-16 11:52:52,112 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:52,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:52,113 INFO L85 PathProgramCache]: Analyzing trace with hash 225862950, now seen corresponding path program 101 times [2022-11-16 11:52:52,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:52,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780061335] [2022-11-16 11:52:52,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:52,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:52,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:52,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:52,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780061335] [2022-11-16 11:52:52,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780061335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:52,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:52,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:52:52,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894319334] [2022-11-16 11:52:52,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:52,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:52:52,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:52,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:52:52,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:52:52,278 INFO L87 Difference]: Start difference. First operand 1746 states and 4480 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:52:52,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:52,456 INFO L93 Difference]: Finished difference Result 1754 states and 4390 transitions. [2022-11-16 11:52:52,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:52:52,456 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:52,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:52,459 INFO L225 Difference]: With dead ends: 1754 [2022-11-16 11:52:52,459 INFO L226 Difference]: Without dead ends: 1664 [2022-11-16 11:52:52,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:52:52,459 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:52,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 0 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:52:52,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2022-11-16 11:52:52,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1664. [2022-11-16 11:52:52,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1664 states, 1663 states have (on average 2.534576067348166) internal successors, (4215), 1663 states have internal predecessors, (4215), 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) [2022-11-16 11:52:52,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 4215 transitions. [2022-11-16 11:52:52,480 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 4215 transitions. Word has length 32 [2022-11-16 11:52:52,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:52,481 INFO L495 AbstractCegarLoop]: Abstraction has 1664 states and 4215 transitions. [2022-11-16 11:52:52,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:52:52,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 4215 transitions. [2022-11-16 11:52:52,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:52,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:52,484 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] [2022-11-16 11:52:52,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-11-16 11:52:52,484 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:52,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:52,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1298882348, now seen corresponding path program 102 times [2022-11-16 11:52:52,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:52,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482709118] [2022-11-16 11:52:52,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:52,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:52,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:52,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:52,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482709118] [2022-11-16 11:52:52,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482709118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:52,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:52,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:52:52,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485618950] [2022-11-16 11:52:52,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:52,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:52:52,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:52,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:52:52,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:52:52,688 INFO L87 Difference]: Start difference. First operand 1664 states and 4215 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:52:52,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:52,884 INFO L93 Difference]: Finished difference Result 1590 states and 3855 transitions. [2022-11-16 11:52:52,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:52:52,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:52,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:52,887 INFO L225 Difference]: With dead ends: 1590 [2022-11-16 11:52:52,887 INFO L226 Difference]: Without dead ends: 1476 [2022-11-16 11:52:52,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:52:52,888 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 36 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:52,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 0 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:52:52,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2022-11-16 11:52:52,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1458. [2022-11-16 11:52:52,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1457 states have (on average 2.4584763212079617) internal successors, (3582), 1457 states have internal predecessors, (3582), 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) [2022-11-16 11:52:52,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 3582 transitions. [2022-11-16 11:52:52,915 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 3582 transitions. Word has length 32 [2022-11-16 11:52:52,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:52,916 INFO L495 AbstractCegarLoop]: Abstraction has 1458 states and 3582 transitions. [2022-11-16 11:52:52,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:52:52,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 3582 transitions. [2022-11-16 11:52:52,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:52,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:52,918 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] [2022-11-16 11:52:52,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-11-16 11:52:52,919 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:52,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:52,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1194503188, now seen corresponding path program 103 times [2022-11-16 11:52:52,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:52,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705272487] [2022-11-16 11:52:52,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:52,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:53,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:53,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:53,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705272487] [2022-11-16 11:52:53,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705272487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:53,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:53,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:52:53,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198252052] [2022-11-16 11:52:53,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:53,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:52:53,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:53,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:52:53,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:52:53,107 INFO L87 Difference]: Start difference. First operand 1458 states and 3582 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:52:53,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:53,349 INFO L93 Difference]: Finished difference Result 2164 states and 4952 transitions. [2022-11-16 11:52:53,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:52:53,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:53,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:53,352 INFO L225 Difference]: With dead ends: 2164 [2022-11-16 11:52:53,352 INFO L226 Difference]: Without dead ends: 1842 [2022-11-16 11:52:53,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:52:53,352 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 46 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:53,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 0 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:52:53,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2022-11-16 11:52:53,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 1348. [2022-11-16 11:52:53,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1347 states have (on average 2.403118040089087) internal successors, (3237), 1347 states have internal predecessors, (3237), 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) [2022-11-16 11:52:53,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 3237 transitions. [2022-11-16 11:52:53,372 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 3237 transitions. Word has length 32 [2022-11-16 11:52:53,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:53,372 INFO L495 AbstractCegarLoop]: Abstraction has 1348 states and 3237 transitions. [2022-11-16 11:52:53,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-11-16 11:52:53,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 3237 transitions. [2022-11-16 11:52:53,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:53,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:53,373 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] [2022-11-16 11:52:53,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-11-16 11:52:53,374 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:53,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:53,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1303006972, now seen corresponding path program 104 times [2022-11-16 11:52:53,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:53,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272551388] [2022-11-16 11:52:53,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:53,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:53,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:53,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:53,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272551388] [2022-11-16 11:52:53,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272551388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:53,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:53,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:52:53,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638263176] [2022-11-16 11:52:53,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:53,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:52:53,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:53,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:52:53,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:52:53,628 INFO L87 Difference]: Start difference. First operand 1348 states and 3237 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:53,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:53,978 INFO L93 Difference]: Finished difference Result 1552 states and 3236 transitions. [2022-11-16 11:52:53,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:52:53,979 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:53,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:53,980 INFO L225 Difference]: With dead ends: 1552 [2022-11-16 11:52:53,980 INFO L226 Difference]: Without dead ends: 970 [2022-11-16 11:52:53,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:52:53,981 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 72 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:53,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 0 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:53,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2022-11-16 11:52:53,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 764. [2022-11-16 11:52:53,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 763 states have (on average 2.184796854521625) internal successors, (1667), 763 states have internal predecessors, (1667), 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) [2022-11-16 11:52:53,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1667 transitions. [2022-11-16 11:52:53,990 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1667 transitions. Word has length 32 [2022-11-16 11:52:53,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:53,990 INFO L495 AbstractCegarLoop]: Abstraction has 764 states and 1667 transitions. [2022-11-16 11:52:53,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-11-16 11:52:53,990 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1667 transitions. [2022-11-16 11:52:53,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:53,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:53,991 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] [2022-11-16 11:52:53,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-11-16 11:52:53,992 INFO L420 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:53,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:53,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1096938600, now seen corresponding path program 105 times [2022-11-16 11:52:53,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:53,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525508875] [2022-11-16 11:52:53,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:53,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:54,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:54,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:54,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525508875] [2022-11-16 11:52:54,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525508875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:54,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:54,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:54,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553039588] [2022-11-16 11:52:54,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:54,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:54,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:54,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:54,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:54,172 INFO L87 Difference]: Start difference. First operand 764 states and 1667 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:54,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:54,619 INFO L93 Difference]: Finished difference Result 840 states and 1683 transitions. [2022-11-16 11:52:54,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:52:54,619 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:54,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:54,620 INFO L225 Difference]: With dead ends: 840 [2022-11-16 11:52:54,620 INFO L226 Difference]: Without dead ends: 436 [2022-11-16 11:52:54,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:52:54,620 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 91 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:54,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 0 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:52:54,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-11-16 11:52:54,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 370. [2022-11-16 11:52:54,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 369 states have (on average 2.0704607046070462) internal successors, (764), 369 states have internal predecessors, (764), 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) [2022-11-16 11:52:54,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 764 transitions. [2022-11-16 11:52:54,625 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 764 transitions. Word has length 32 [2022-11-16 11:52:54,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:54,625 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 764 transitions. [2022-11-16 11:52:54,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:54,626 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 764 transitions. [2022-11-16 11:52:54,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:54,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:54,626 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] [2022-11-16 11:52:54,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-11-16 11:52:54,626 INFO L420 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:54,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:54,627 INFO L85 PathProgramCache]: Analyzing trace with hash -185997662, now seen corresponding path program 106 times [2022-11-16 11:52:54,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:54,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981403908] [2022-11-16 11:52:54,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:54,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:54,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:54,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:54,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981403908] [2022-11-16 11:52:54,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981403908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:54,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:54,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:54,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559049201] [2022-11-16 11:52:54,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:54,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:54,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:54,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:54,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:54,850 INFO L87 Difference]: Start difference. First operand 370 states and 764 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:55,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:55,082 INFO L93 Difference]: Finished difference Result 382 states and 780 transitions. [2022-11-16 11:52:55,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:52:55,082 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:55,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:55,083 INFO L225 Difference]: With dead ends: 382 [2022-11-16 11:52:55,083 INFO L226 Difference]: Without dead ends: 366 [2022-11-16 11:52:55,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:52:55,083 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:55,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 0 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:52:55,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-11-16 11:52:55,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2022-11-16 11:52:55,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 365 states have (on average 2.0657534246575344) internal successors, (754), 365 states have internal predecessors, (754), 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) [2022-11-16 11:52:55,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 754 transitions. [2022-11-16 11:52:55,088 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 754 transitions. Word has length 32 [2022-11-16 11:52:55,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:55,088 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 754 transitions. [2022-11-16 11:52:55,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:55,088 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 754 transitions. [2022-11-16 11:52:55,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:55,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:55,089 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] [2022-11-16 11:52:55,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-11-16 11:52:55,089 INFO L420 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:55,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:55,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1838283984, now seen corresponding path program 107 times [2022-11-16 11:52:55,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:55,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775057523] [2022-11-16 11:52:55,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:55,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:55,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:55,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:55,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775057523] [2022-11-16 11:52:55,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775057523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:55,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:55,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:55,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582886314] [2022-11-16 11:52:55,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:55,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:55,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:55,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:55,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:55,281 INFO L87 Difference]: Start difference. First operand 366 states and 754 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:55,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:55,698 INFO L93 Difference]: Finished difference Result 390 states and 788 transitions. [2022-11-16 11:52:55,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:52:55,699 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:55,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:55,699 INFO L225 Difference]: With dead ends: 390 [2022-11-16 11:52:55,699 INFO L226 Difference]: Without dead ends: 368 [2022-11-16 11:52:55,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:52:55,700 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 51 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:55,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 0 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:55,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-11-16 11:52:55,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 362. [2022-11-16 11:52:55,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 361 states have (on average 2.038781163434903) internal successors, (736), 361 states have internal predecessors, (736), 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) [2022-11-16 11:52:55,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 736 transitions. [2022-11-16 11:52:55,706 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 736 transitions. Word has length 32 [2022-11-16 11:52:55,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:55,706 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 736 transitions. [2022-11-16 11:52:55,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:55,707 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 736 transitions. [2022-11-16 11:52:55,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:55,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:55,708 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] [2022-11-16 11:52:55,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-11-16 11:52:55,708 INFO L420 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:55,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:55,708 INFO L85 PathProgramCache]: Analyzing trace with hash 793351444, now seen corresponding path program 108 times [2022-11-16 11:52:55,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:55,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086995993] [2022-11-16 11:52:55,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:55,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:55,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:55,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:55,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086995993] [2022-11-16 11:52:55,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086995993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:55,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:55,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:55,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726050115] [2022-11-16 11:52:55,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:55,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:55,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:55,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:55,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:55,943 INFO L87 Difference]: Start difference. First operand 362 states and 736 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:56,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:56,209 INFO L93 Difference]: Finished difference Result 450 states and 872 transitions. [2022-11-16 11:52:56,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:52:56,209 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:56,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:56,210 INFO L225 Difference]: With dead ends: 450 [2022-11-16 11:52:56,210 INFO L226 Difference]: Without dead ends: 442 [2022-11-16 11:52:56,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:52:56,210 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:56,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:52:56,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-11-16 11:52:56,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 366. [2022-11-16 11:52:56,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 365 states have (on average 2.032876712328767) internal successors, (742), 365 states have internal predecessors, (742), 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) [2022-11-16 11:52:56,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 742 transitions. [2022-11-16 11:52:56,216 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 742 transitions. Word has length 32 [2022-11-16 11:52:56,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:56,216 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 742 transitions. [2022-11-16 11:52:56,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:56,216 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 742 transitions. [2022-11-16 11:52:56,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:56,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:56,217 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] [2022-11-16 11:52:56,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-11-16 11:52:56,217 INFO L420 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:56,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:56,217 INFO L85 PathProgramCache]: Analyzing trace with hash 549482776, now seen corresponding path program 109 times [2022-11-16 11:52:56,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:56,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832172864] [2022-11-16 11:52:56,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:56,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:56,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:56,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:56,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832172864] [2022-11-16 11:52:56,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832172864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:56,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:56,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:56,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883736380] [2022-11-16 11:52:56,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:56,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:56,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:56,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:56,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:56,420 INFO L87 Difference]: Start difference. First operand 366 states and 742 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:56,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:56,668 INFO L93 Difference]: Finished difference Result 374 states and 752 transitions. [2022-11-16 11:52:56,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:52:56,668 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:56,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:56,669 INFO L225 Difference]: With dead ends: 374 [2022-11-16 11:52:56,669 INFO L226 Difference]: Without dead ends: 336 [2022-11-16 11:52:56,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:52:56,669 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:56,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 0 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:52:56,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-11-16 11:52:56,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2022-11-16 11:52:56,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 335 states have (on average 2.056716417910448) internal successors, (689), 335 states have internal predecessors, (689), 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) [2022-11-16 11:52:56,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 689 transitions. [2022-11-16 11:52:56,673 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 689 transitions. Word has length 32 [2022-11-16 11:52:56,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:56,674 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 689 transitions. [2022-11-16 11:52:56,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:56,674 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 689 transitions. [2022-11-16 11:52:56,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:56,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:56,674 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] [2022-11-16 11:52:56,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-11-16 11:52:56,675 INFO L420 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:56,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:56,675 INFO L85 PathProgramCache]: Analyzing trace with hash -893625220, now seen corresponding path program 110 times [2022-11-16 11:52:56,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:56,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791605234] [2022-11-16 11:52:56,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:56,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:56,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:56,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:56,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791605234] [2022-11-16 11:52:56,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791605234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:56,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:56,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:56,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754373396] [2022-11-16 11:52:56,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:56,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:56,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:56,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:56,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:56,946 INFO L87 Difference]: Start difference. First operand 336 states and 689 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:57,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:57,228 INFO L93 Difference]: Finished difference Result 360 states and 723 transitions. [2022-11-16 11:52:57,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:52:57,228 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:57,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:57,229 INFO L225 Difference]: With dead ends: 360 [2022-11-16 11:52:57,229 INFO L226 Difference]: Without dead ends: 344 [2022-11-16 11:52:57,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:52:57,229 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:57,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 0 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:52:57,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-11-16 11:52:57,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 336. [2022-11-16 11:52:57,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 335 states have (on average 2.044776119402985) internal successors, (685), 335 states have internal predecessors, (685), 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) [2022-11-16 11:52:57,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 685 transitions. [2022-11-16 11:52:57,233 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 685 transitions. Word has length 32 [2022-11-16 11:52:57,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:57,233 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 685 transitions. [2022-11-16 11:52:57,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:57,233 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 685 transitions. [2022-11-16 11:52:57,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:57,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:57,234 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] [2022-11-16 11:52:57,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-11-16 11:52:57,234 INFO L420 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:57,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:57,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1211920284, now seen corresponding path program 111 times [2022-11-16 11:52:57,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:57,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639095072] [2022-11-16 11:52:57,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:57,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:57,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:57,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:57,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639095072] [2022-11-16 11:52:57,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639095072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:57,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:57,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:57,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085994258] [2022-11-16 11:52:57,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:57,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:57,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:57,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:57,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:57,446 INFO L87 Difference]: Start difference. First operand 336 states and 685 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:57,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:57,786 INFO L93 Difference]: Finished difference Result 352 states and 707 transitions. [2022-11-16 11:52:57,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:52:57,786 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:57,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:57,787 INFO L225 Difference]: With dead ends: 352 [2022-11-16 11:52:57,787 INFO L226 Difference]: Without dead ends: 340 [2022-11-16 11:52:57,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:52:57,787 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 37 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:57,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 0 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:57,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-11-16 11:52:57,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 336. [2022-11-16 11:52:57,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 335 states have (on average 2.032835820895522) internal successors, (681), 335 states have internal predecessors, (681), 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) [2022-11-16 11:52:57,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 681 transitions. [2022-11-16 11:52:57,791 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 681 transitions. Word has length 32 [2022-11-16 11:52:57,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:57,791 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 681 transitions. [2022-11-16 11:52:57,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:57,792 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 681 transitions. [2022-11-16 11:52:57,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:57,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:57,792 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] [2022-11-16 11:52:57,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-11-16 11:52:57,793 INFO L420 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:57,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:57,793 INFO L85 PathProgramCache]: Analyzing trace with hash -2016853832, now seen corresponding path program 112 times [2022-11-16 11:52:57,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:57,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24058775] [2022-11-16 11:52:57,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:57,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:57,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:57,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:57,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24058775] [2022-11-16 11:52:57,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24058775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:57,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:57,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:57,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168520470] [2022-11-16 11:52:57,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:57,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:57,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:57,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:57,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:57,982 INFO L87 Difference]: Start difference. First operand 336 states and 681 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:58,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:58,287 INFO L93 Difference]: Finished difference Result 426 states and 826 transitions. [2022-11-16 11:52:58,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:52:58,288 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:58,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:58,289 INFO L225 Difference]: With dead ends: 426 [2022-11-16 11:52:58,289 INFO L226 Difference]: Without dead ends: 414 [2022-11-16 11:52:58,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:52:58,289 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:58,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 0 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:52:58,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-11-16 11:52:58,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 328. [2022-11-16 11:52:58,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 327 states have (on average 2.015290519877676) internal successors, (659), 327 states have internal predecessors, (659), 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) [2022-11-16 11:52:58,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 659 transitions. [2022-11-16 11:52:58,295 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 659 transitions. Word has length 32 [2022-11-16 11:52:58,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:58,295 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 659 transitions. [2022-11-16 11:52:58,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:58,295 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 659 transitions. [2022-11-16 11:52:58,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:58,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:58,296 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] [2022-11-16 11:52:58,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-11-16 11:52:58,296 INFO L420 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:58,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:58,297 INFO L85 PathProgramCache]: Analyzing trace with hash 440709724, now seen corresponding path program 113 times [2022-11-16 11:52:58,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:58,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823727540] [2022-11-16 11:52:58,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:58,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:58,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:58,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:58,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823727540] [2022-11-16 11:52:58,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823727540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:58,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:58,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:58,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425201497] [2022-11-16 11:52:58,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:58,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:58,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:58,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:58,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:58,552 INFO L87 Difference]: Start difference. First operand 328 states and 659 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:58,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:58,867 INFO L93 Difference]: Finished difference Result 372 states and 723 transitions. [2022-11-16 11:52:58,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:52:58,868 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:58,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:58,869 INFO L225 Difference]: With dead ends: 372 [2022-11-16 11:52:58,869 INFO L226 Difference]: Without dead ends: 340 [2022-11-16 11:52:58,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:52:58,869 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:58,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:52:58,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-11-16 11:52:58,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 304. [2022-11-16 11:52:58,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 303 states have (on average 2.0231023102310233) internal successors, (613), 303 states have internal predecessors, (613), 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) [2022-11-16 11:52:58,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 613 transitions. [2022-11-16 11:52:58,873 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 613 transitions. Word has length 32 [2022-11-16 11:52:58,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:58,873 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 613 transitions. [2022-11-16 11:52:58,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:58,873 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 613 transitions. [2022-11-16 11:52:58,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:58,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:58,874 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] [2022-11-16 11:52:58,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-11-16 11:52:58,874 INFO L420 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:58,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:58,874 INFO L85 PathProgramCache]: Analyzing trace with hash 476365674, now seen corresponding path program 114 times [2022-11-16 11:52:58,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:58,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665095454] [2022-11-16 11:52:58,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:58,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:59,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:59,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:59,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665095454] [2022-11-16 11:52:59,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665095454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:59,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:59,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:59,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033884057] [2022-11-16 11:52:59,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:59,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:59,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:59,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:59,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:59,091 INFO L87 Difference]: Start difference. First operand 304 states and 613 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:59,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:59,295 INFO L93 Difference]: Finished difference Result 362 states and 698 transitions. [2022-11-16 11:52:59,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:52:59,295 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:59,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:59,296 INFO L225 Difference]: With dead ends: 362 [2022-11-16 11:52:59,296 INFO L226 Difference]: Without dead ends: 320 [2022-11-16 11:52:59,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:52:59,296 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:59,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 0 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:52:59,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-11-16 11:52:59,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 300. [2022-11-16 11:52:59,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 299 states have (on average 1.9899665551839465) internal successors, (595), 299 states have internal predecessors, (595), 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) [2022-11-16 11:52:59,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 595 transitions. [2022-11-16 11:52:59,300 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 595 transitions. Word has length 32 [2022-11-16 11:52:59,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:59,300 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 595 transitions. [2022-11-16 11:52:59,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:59,301 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 595 transitions. [2022-11-16 11:52:59,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:59,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:59,301 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] [2022-11-16 11:52:59,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-11-16 11:52:59,301 INFO L420 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:59,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:59,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1933367772, now seen corresponding path program 115 times [2022-11-16 11:52:59,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:59,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938778042] [2022-11-16 11:52:59,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:59,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:59,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:59,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:59,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938778042] [2022-11-16 11:52:59,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938778042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:59,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:59,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:59,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385423002] [2022-11-16 11:52:59,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:59,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:59,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:59,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:59,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:59,527 INFO L87 Difference]: Start difference. First operand 300 states and 595 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:59,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:52:59,788 INFO L93 Difference]: Finished difference Result 338 states and 650 transitions. [2022-11-16 11:52:59,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:52:59,788 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:52:59,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:52:59,789 INFO L225 Difference]: With dead ends: 338 [2022-11-16 11:52:59,789 INFO L226 Difference]: Without dead ends: 308 [2022-11-16 11:52:59,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:52:59,789 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:52:59,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 0 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:52:59,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-11-16 11:52:59,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 296. [2022-11-16 11:52:59,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 1.9559322033898305) internal successors, (577), 295 states have internal predecessors, (577), 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) [2022-11-16 11:52:59,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 577 transitions. [2022-11-16 11:52:59,793 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 577 transitions. Word has length 32 [2022-11-16 11:52:59,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:52:59,793 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 577 transitions. [2022-11-16 11:52:59,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:52:59,793 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 577 transitions. [2022-11-16 11:52:59,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:52:59,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:52:59,793 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] [2022-11-16 11:52:59,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-11-16 11:52:59,793 INFO L420 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:52:59,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:59,794 INFO L85 PathProgramCache]: Analyzing trace with hash -2045352182, now seen corresponding path program 116 times [2022-11-16 11:52:59,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:59,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019433074] [2022-11-16 11:52:59,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:59,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:59,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:59,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:59,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019433074] [2022-11-16 11:52:59,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019433074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:59,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:59,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:52:59,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445908624] [2022-11-16 11:52:59,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:59,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:52:59,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:59,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:52:59,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:52:59,981 INFO L87 Difference]: Start difference. First operand 296 states and 577 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:00,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:00,239 INFO L93 Difference]: Finished difference Result 338 states and 642 transitions. [2022-11-16 11:53:00,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:53:00,239 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:00,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:00,240 INFO L225 Difference]: With dead ends: 338 [2022-11-16 11:53:00,240 INFO L226 Difference]: Without dead ends: 320 [2022-11-16 11:53:00,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:53:00,240 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:00,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 0 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:00,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-11-16 11:53:00,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 296. [2022-11-16 11:53:00,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 1.928813559322034) internal successors, (569), 295 states have internal predecessors, (569), 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) [2022-11-16 11:53:00,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 569 transitions. [2022-11-16 11:53:00,245 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 569 transitions. Word has length 32 [2022-11-16 11:53:00,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:00,245 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 569 transitions. [2022-11-16 11:53:00,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:00,245 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 569 transitions. [2022-11-16 11:53:00,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:00,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:00,246 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] [2022-11-16 11:53:00,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-11-16 11:53:00,246 INFO L420 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:00,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:00,246 INFO L85 PathProgramCache]: Analyzing trace with hash -462726926, now seen corresponding path program 117 times [2022-11-16 11:53:00,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:00,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087802858] [2022-11-16 11:53:00,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:00,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:00,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:00,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:00,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087802858] [2022-11-16 11:53:00,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087802858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:00,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:00,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:00,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461805787] [2022-11-16 11:53:00,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:00,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:00,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:00,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:00,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:00,463 INFO L87 Difference]: Start difference. First operand 296 states and 569 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:00,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:00,695 INFO L93 Difference]: Finished difference Result 388 states and 709 transitions. [2022-11-16 11:53:00,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:53:00,696 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:00,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:00,697 INFO L225 Difference]: With dead ends: 388 [2022-11-16 11:53:00,697 INFO L226 Difference]: Without dead ends: 332 [2022-11-16 11:53:00,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:53:00,697 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:00,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 0 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:00,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-11-16 11:53:00,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 246. [2022-11-16 11:53:00,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 245 states have (on average 1.9591836734693877) internal successors, (480), 245 states have internal predecessors, (480), 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) [2022-11-16 11:53:00,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 480 transitions. [2022-11-16 11:53:00,702 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 480 transitions. Word has length 32 [2022-11-16 11:53:00,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:00,702 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 480 transitions. [2022-11-16 11:53:00,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:00,703 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 480 transitions. [2022-11-16 11:53:00,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:00,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:00,703 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] [2022-11-16 11:53:00,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-11-16 11:53:00,704 INFO L420 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:00,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:00,704 INFO L85 PathProgramCache]: Analyzing trace with hash -382182980, now seen corresponding path program 118 times [2022-11-16 11:53:00,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:00,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29204652] [2022-11-16 11:53:00,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:00,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:00,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:00,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:00,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29204652] [2022-11-16 11:53:00,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29204652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:00,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:00,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:00,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3822571] [2022-11-16 11:53:00,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:00,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:00,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:00,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:00,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:00,940 INFO L87 Difference]: Start difference. First operand 246 states and 480 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:01,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:01,192 INFO L93 Difference]: Finished difference Result 258 states and 496 transitions. [2022-11-16 11:53:01,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:53:01,192 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:01,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:01,193 INFO L225 Difference]: With dead ends: 258 [2022-11-16 11:53:01,193 INFO L226 Difference]: Without dead ends: 242 [2022-11-16 11:53:01,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:53:01,194 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:01,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 0 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:01,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-11-16 11:53:01,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2022-11-16 11:53:01,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 241 states have (on average 1.950207468879668) internal successors, (470), 241 states have internal predecessors, (470), 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) [2022-11-16 11:53:01,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 470 transitions. [2022-11-16 11:53:01,198 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 470 transitions. Word has length 32 [2022-11-16 11:53:01,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:01,198 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 470 transitions. [2022-11-16 11:53:01,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:01,198 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 470 transitions. [2022-11-16 11:53:01,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:01,199 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:01,199 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] [2022-11-16 11:53:01,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-11-16 11:53:01,200 INFO L420 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:01,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:01,200 INFO L85 PathProgramCache]: Analyzing trace with hash 912813888, now seen corresponding path program 119 times [2022-11-16 11:53:01,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:01,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728025222] [2022-11-16 11:53:01,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:01,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:01,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:01,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:01,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728025222] [2022-11-16 11:53:01,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728025222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:01,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:01,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:01,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390588888] [2022-11-16 11:53:01,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:01,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:01,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:01,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:01,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:01,420 INFO L87 Difference]: Start difference. First operand 242 states and 470 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:01,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:01,720 INFO L93 Difference]: Finished difference Result 250 states and 480 transitions. [2022-11-16 11:53:01,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:53:01,720 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:01,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:01,721 INFO L225 Difference]: With dead ends: 250 [2022-11-16 11:53:01,721 INFO L226 Difference]: Without dead ends: 238 [2022-11-16 11:53:01,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:53:01,721 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:01,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 0 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:01,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-11-16 11:53:01,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2022-11-16 11:53:01,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 237 states have (on average 1.9409282700421941) internal successors, (460), 237 states have internal predecessors, (460), 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) [2022-11-16 11:53:01,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 460 transitions. [2022-11-16 11:53:01,725 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 460 transitions. Word has length 32 [2022-11-16 11:53:01,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:01,725 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 460 transitions. [2022-11-16 11:53:01,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:01,726 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 460 transitions. [2022-11-16 11:53:01,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:01,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:01,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:53:01,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-11-16 11:53:01,726 INFO L420 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:01,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:01,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1427488582, now seen corresponding path program 120 times [2022-11-16 11:53:01,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:01,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489463133] [2022-11-16 11:53:01,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:01,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:02,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:02,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:02,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489463133] [2022-11-16 11:53:02,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489463133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:02,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:02,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:02,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835512665] [2022-11-16 11:53:02,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:02,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:02,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:02,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:02,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:02,011 INFO L87 Difference]: Start difference. First operand 238 states and 460 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:02,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:02,329 INFO L93 Difference]: Finished difference Result 314 states and 580 transitions. [2022-11-16 11:53:02,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:53:02,329 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:02,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:02,330 INFO L225 Difference]: With dead ends: 314 [2022-11-16 11:53:02,330 INFO L226 Difference]: Without dead ends: 306 [2022-11-16 11:53:02,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:53:02,330 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:02,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 0 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 11:53:02,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-11-16 11:53:02,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 240. [2022-11-16 11:53:02,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 239 states have (on average 1.9288702928870294) internal successors, (461), 239 states have internal predecessors, (461), 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) [2022-11-16 11:53:02,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 461 transitions. [2022-11-16 11:53:02,334 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 461 transitions. Word has length 32 [2022-11-16 11:53:02,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:02,334 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 461 transitions. [2022-11-16 11:53:02,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:02,335 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 461 transitions. [2022-11-16 11:53:02,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:02,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:02,335 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] [2022-11-16 11:53:02,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-11-16 11:53:02,335 INFO L420 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:02,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:02,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1824206052, now seen corresponding path program 121 times [2022-11-16 11:53:02,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:02,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282905545] [2022-11-16 11:53:02,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:02,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:02,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:02,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:02,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282905545] [2022-11-16 11:53:02,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282905545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:02,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:02,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:02,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218449890] [2022-11-16 11:53:02,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:02,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:02,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:02,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:02,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:02,591 INFO L87 Difference]: Start difference. First operand 240 states and 461 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:02,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:02,873 INFO L93 Difference]: Finished difference Result 258 states and 488 transitions. [2022-11-16 11:53:02,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:53:02,874 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:02,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:02,874 INFO L225 Difference]: With dead ends: 258 [2022-11-16 11:53:02,874 INFO L226 Difference]: Without dead ends: 230 [2022-11-16 11:53:02,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:53:02,875 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:02,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 0 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:02,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-11-16 11:53:02,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 218. [2022-11-16 11:53:02,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 217 states have (on average 1.9493087557603688) internal successors, (423), 217 states have internal predecessors, (423), 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) [2022-11-16 11:53:02,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 423 transitions. [2022-11-16 11:53:02,878 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 423 transitions. Word has length 32 [2022-11-16 11:53:02,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:02,878 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 423 transitions. [2022-11-16 11:53:02,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:02,878 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 423 transitions. [2022-11-16 11:53:02,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:02,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:02,879 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] [2022-11-16 11:53:02,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-11-16 11:53:02,879 INFO L420 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:02,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:02,879 INFO L85 PathProgramCache]: Analyzing trace with hash 972073388, now seen corresponding path program 122 times [2022-11-16 11:53:02,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:02,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415724093] [2022-11-16 11:53:02,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:02,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:03,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:03,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:03,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415724093] [2022-11-16 11:53:03,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415724093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:03,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:03,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:03,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22913126] [2022-11-16 11:53:03,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:03,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:03,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:03,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:03,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:03,129 INFO L87 Difference]: Start difference. First operand 218 states and 423 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:03,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:03,321 INFO L93 Difference]: Finished difference Result 226 states and 433 transitions. [2022-11-16 11:53:03,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:53:03,322 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:03,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:03,322 INFO L225 Difference]: With dead ends: 226 [2022-11-16 11:53:03,322 INFO L226 Difference]: Without dead ends: 210 [2022-11-16 11:53:03,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:53:03,323 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:03,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 0 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:03,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-11-16 11:53:03,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-11-16 11:53:03,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 209 states have (on average 1.9473684210526316) internal successors, (407), 209 states have internal predecessors, (407), 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) [2022-11-16 11:53:03,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 407 transitions. [2022-11-16 11:53:03,326 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 407 transitions. Word has length 32 [2022-11-16 11:53:03,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:03,326 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 407 transitions. [2022-11-16 11:53:03,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:03,326 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 407 transitions. [2022-11-16 11:53:03,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:03,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:03,327 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] [2022-11-16 11:53:03,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-11-16 11:53:03,327 INFO L420 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:03,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:03,328 INFO L85 PathProgramCache]: Analyzing trace with hash -2095100302, now seen corresponding path program 123 times [2022-11-16 11:53:03,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:03,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963782997] [2022-11-16 11:53:03,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:03,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:03,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:03,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:03,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963782997] [2022-11-16 11:53:03,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963782997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:03,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:03,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:03,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655220765] [2022-11-16 11:53:03,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:03,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:03,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:03,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:03,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:03,592 INFO L87 Difference]: Start difference. First operand 210 states and 407 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:03,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:03,792 INFO L93 Difference]: Finished difference Result 268 states and 496 transitions. [2022-11-16 11:53:03,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:53:03,792 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:03,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:03,793 INFO L225 Difference]: With dead ends: 268 [2022-11-16 11:53:03,793 INFO L226 Difference]: Without dead ends: 260 [2022-11-16 11:53:03,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:53:03,793 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:03,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 0 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:03,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-11-16 11:53:03,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 212. [2022-11-16 11:53:03,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 211 states have (on average 1.933649289099526) internal successors, (408), 211 states have internal predecessors, (408), 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) [2022-11-16 11:53:03,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 408 transitions. [2022-11-16 11:53:03,798 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 408 transitions. Word has length 32 [2022-11-16 11:53:03,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:03,798 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 408 transitions. [2022-11-16 11:53:03,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:03,798 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 408 transitions. [2022-11-16 11:53:03,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:03,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:03,799 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] [2022-11-16 11:53:03,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-11-16 11:53:03,799 INFO L420 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:03,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:03,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1955998326, now seen corresponding path program 124 times [2022-11-16 11:53:03,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:03,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517674311] [2022-11-16 11:53:03,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:03,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:04,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:04,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:04,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517674311] [2022-11-16 11:53:04,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517674311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:04,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:04,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:04,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820848495] [2022-11-16 11:53:04,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:04,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:04,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:04,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:04,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:04,017 INFO L87 Difference]: Start difference. First operand 212 states and 408 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:04,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:04,221 INFO L93 Difference]: Finished difference Result 218 states and 415 transitions. [2022-11-16 11:53:04,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:53:04,222 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:04,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:04,222 INFO L225 Difference]: With dead ends: 218 [2022-11-16 11:53:04,222 INFO L226 Difference]: Without dead ends: 184 [2022-11-16 11:53:04,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:53:04,222 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:04,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 0 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:04,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-16 11:53:04,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2022-11-16 11:53:04,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 1.9672131147540983) internal successors, (360), 183 states have internal predecessors, (360), 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) [2022-11-16 11:53:04,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 360 transitions. [2022-11-16 11:53:04,226 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 360 transitions. Word has length 32 [2022-11-16 11:53:04,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:04,226 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 360 transitions. [2022-11-16 11:53:04,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:04,227 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 360 transitions. [2022-11-16 11:53:04,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:04,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:04,227 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] [2022-11-16 11:53:04,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-11-16 11:53:04,228 INFO L420 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:04,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:04,228 INFO L85 PathProgramCache]: Analyzing trace with hash -953972284, now seen corresponding path program 125 times [2022-11-16 11:53:04,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:04,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469927994] [2022-11-16 11:53:04,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:04,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:04,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:04,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:04,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469927994] [2022-11-16 11:53:04,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469927994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:04,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:04,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:04,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354071213] [2022-11-16 11:53:04,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:04,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:04,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:04,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:04,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:04,427 INFO L87 Difference]: Start difference. First operand 184 states and 360 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:04,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:04,707 INFO L93 Difference]: Finished difference Result 200 states and 382 transitions. [2022-11-16 11:53:04,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:53:04,708 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:04,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:04,708 INFO L225 Difference]: With dead ends: 200 [2022-11-16 11:53:04,708 INFO L226 Difference]: Without dead ends: 188 [2022-11-16 11:53:04,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:53:04,709 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:04,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 0 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:04,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-11-16 11:53:04,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 184. [2022-11-16 11:53:04,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 1.9453551912568305) internal successors, (356), 183 states have internal predecessors, (356), 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) [2022-11-16 11:53:04,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 356 transitions. [2022-11-16 11:53:04,711 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 356 transitions. Word has length 32 [2022-11-16 11:53:04,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:04,712 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 356 transitions. [2022-11-16 11:53:04,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:04,712 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 356 transitions. [2022-11-16 11:53:04,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:04,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:04,712 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] [2022-11-16 11:53:04,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-11-16 11:53:04,712 INFO L420 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:04,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:04,713 INFO L85 PathProgramCache]: Analyzing trace with hash 603975072, now seen corresponding path program 126 times [2022-11-16 11:53:04,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:04,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640070412] [2022-11-16 11:53:04,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:04,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:04,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:04,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:04,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640070412] [2022-11-16 11:53:04,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640070412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:04,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:04,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:04,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206470467] [2022-11-16 11:53:04,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:04,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:04,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:04,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:04,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:04,923 INFO L87 Difference]: Start difference. First operand 184 states and 356 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:05,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:05,224 INFO L93 Difference]: Finished difference Result 216 states and 402 transitions. [2022-11-16 11:53:05,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:53:05,225 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:05,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:05,225 INFO L225 Difference]: With dead ends: 216 [2022-11-16 11:53:05,225 INFO L226 Difference]: Without dead ends: 208 [2022-11-16 11:53:05,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:53:05,226 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:05,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 0 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:05,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-11-16 11:53:05,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 184. [2022-11-16 11:53:05,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 1.9234972677595628) internal successors, (352), 183 states have internal predecessors, (352), 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) [2022-11-16 11:53:05,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 352 transitions. [2022-11-16 11:53:05,228 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 352 transitions. Word has length 32 [2022-11-16 11:53:05,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:05,228 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 352 transitions. [2022-11-16 11:53:05,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:05,228 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 352 transitions. [2022-11-16 11:53:05,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:05,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:05,229 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] [2022-11-16 11:53:05,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-11-16 11:53:05,229 INFO L420 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:05,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:05,229 INFO L85 PathProgramCache]: Analyzing trace with hash -170551162, now seen corresponding path program 127 times [2022-11-16 11:53:05,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:05,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695947859] [2022-11-16 11:53:05,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:05,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:05,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:05,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:05,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695947859] [2022-11-16 11:53:05,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695947859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:05,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:05,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:05,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296185039] [2022-11-16 11:53:05,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:05,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:05,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:05,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:05,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:05,498 INFO L87 Difference]: Start difference. First operand 184 states and 352 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:05,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:05,745 INFO L93 Difference]: Finished difference Result 214 states and 395 transitions. [2022-11-16 11:53:05,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:53:05,745 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:05,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:05,746 INFO L225 Difference]: With dead ends: 214 [2022-11-16 11:53:05,746 INFO L226 Difference]: Without dead ends: 198 [2022-11-16 11:53:05,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:53:05,746 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:05,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 0 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:05,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-16 11:53:05,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 172. [2022-11-16 11:53:05,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 1.9181286549707601) internal successors, (328), 171 states have internal predecessors, (328), 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) [2022-11-16 11:53:05,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 328 transitions. [2022-11-16 11:53:05,749 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 328 transitions. Word has length 32 [2022-11-16 11:53:05,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:05,749 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 328 transitions. [2022-11-16 11:53:05,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:05,749 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 328 transitions. [2022-11-16 11:53:05,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:05,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:05,749 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] [2022-11-16 11:53:05,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-11-16 11:53:05,749 INFO L420 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:05,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:05,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1681689604, now seen corresponding path program 128 times [2022-11-16 11:53:05,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:05,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683276973] [2022-11-16 11:53:05,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:05,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:05,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:05,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:05,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683276973] [2022-11-16 11:53:05,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683276973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:05,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:05,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:05,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118140022] [2022-11-16 11:53:05,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:05,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:05,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:05,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:05,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:05,981 INFO L87 Difference]: Start difference. First operand 172 states and 328 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:06,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:06,292 INFO L93 Difference]: Finished difference Result 188 states and 350 transitions. [2022-11-16 11:53:06,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:53:06,292 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:06,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:06,293 INFO L225 Difference]: With dead ends: 188 [2022-11-16 11:53:06,293 INFO L226 Difference]: Without dead ends: 168 [2022-11-16 11:53:06,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:53:06,293 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:06,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 0 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:06,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-16 11:53:06,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-11-16 11:53:06,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 167 states have (on average 1.904191616766467) internal successors, (318), 167 states have internal predecessors, (318), 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) [2022-11-16 11:53:06,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 318 transitions. [2022-11-16 11:53:06,296 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 318 transitions. Word has length 32 [2022-11-16 11:53:06,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:06,296 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 318 transitions. [2022-11-16 11:53:06,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:06,296 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 318 transitions. [2022-11-16 11:53:06,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:06,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:06,296 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] [2022-11-16 11:53:06,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-11-16 11:53:06,297 INFO L420 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:06,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:06,297 INFO L85 PathProgramCache]: Analyzing trace with hash -64772220, now seen corresponding path program 129 times [2022-11-16 11:53:06,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:06,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758729002] [2022-11-16 11:53:06,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:06,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:06,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:06,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:06,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758729002] [2022-11-16 11:53:06,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758729002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:06,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:06,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:06,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168086873] [2022-11-16 11:53:06,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:06,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:06,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:06,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:06,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:06,529 INFO L87 Difference]: Start difference. First operand 168 states and 318 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:06,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:06,772 INFO L93 Difference]: Finished difference Result 210 states and 375 transitions. [2022-11-16 11:53:06,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:53:06,773 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:06,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:06,773 INFO L225 Difference]: With dead ends: 210 [2022-11-16 11:53:06,773 INFO L226 Difference]: Without dead ends: 180 [2022-11-16 11:53:06,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:53:06,774 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:06,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 0 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:06,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-11-16 11:53:06,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 168. [2022-11-16 11:53:06,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 167 states have (on average 1.8323353293413174) internal successors, (306), 167 states have internal predecessors, (306), 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) [2022-11-16 11:53:06,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 306 transitions. [2022-11-16 11:53:06,776 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 306 transitions. Word has length 32 [2022-11-16 11:53:06,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:06,777 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 306 transitions. [2022-11-16 11:53:06,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:06,777 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 306 transitions. [2022-11-16 11:53:06,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:06,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:06,777 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] [2022-11-16 11:53:06,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-11-16 11:53:06,777 INFO L420 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:06,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:06,778 INFO L85 PathProgramCache]: Analyzing trace with hash 251475122, now seen corresponding path program 130 times [2022-11-16 11:53:06,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:06,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829113262] [2022-11-16 11:53:06,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:06,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:06,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:06,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:06,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829113262] [2022-11-16 11:53:06,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829113262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:06,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:06,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:06,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266448843] [2022-11-16 11:53:06,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:06,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:06,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:06,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:06,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:06,990 INFO L87 Difference]: Start difference. First operand 168 states and 306 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:07,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:07,229 INFO L93 Difference]: Finished difference Result 202 states and 351 transitions. [2022-11-16 11:53:07,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:53:07,229 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:07,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:07,230 INFO L225 Difference]: With dead ends: 202 [2022-11-16 11:53:07,230 INFO L226 Difference]: Without dead ends: 184 [2022-11-16 11:53:07,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:53:07,230 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:07,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 0 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:07,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-16 11:53:07,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 168. [2022-11-16 11:53:07,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 167 states have (on average 1.7604790419161678) internal successors, (294), 167 states have internal predecessors, (294), 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) [2022-11-16 11:53:07,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 294 transitions. [2022-11-16 11:53:07,232 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 294 transitions. Word has length 32 [2022-11-16 11:53:07,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:07,233 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 294 transitions. [2022-11-16 11:53:07,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:07,233 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 294 transitions. [2022-11-16 11:53:07,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:07,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:07,233 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] [2022-11-16 11:53:07,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-11-16 11:53:07,233 INFO L420 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:07,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:07,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1164722084, now seen corresponding path program 131 times [2022-11-16 11:53:07,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:07,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732173291] [2022-11-16 11:53:07,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:07,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:07,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:07,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:07,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732173291] [2022-11-16 11:53:07,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732173291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:07,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:07,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:07,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467962514] [2022-11-16 11:53:07,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:07,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:07,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:07,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:07,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:07,457 INFO L87 Difference]: Start difference. First operand 168 states and 294 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:07,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:07,632 INFO L93 Difference]: Finished difference Result 192 states and 324 transitions. [2022-11-16 11:53:07,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:53:07,632 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:07,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:07,632 INFO L225 Difference]: With dead ends: 192 [2022-11-16 11:53:07,632 INFO L226 Difference]: Without dead ends: 156 [2022-11-16 11:53:07,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:53:07,633 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:07,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 0 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:07,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-11-16 11:53:07,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 138. [2022-11-16 11:53:07,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 137 states have (on average 1.72992700729927) internal successors, (237), 137 states have internal predecessors, (237), 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) [2022-11-16 11:53:07,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 237 transitions. [2022-11-16 11:53:07,635 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 237 transitions. Word has length 32 [2022-11-16 11:53:07,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:07,635 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 237 transitions. [2022-11-16 11:53:07,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:07,635 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 237 transitions. [2022-11-16 11:53:07,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:07,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:07,636 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] [2022-11-16 11:53:07,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-11-16 11:53:07,636 INFO L420 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:07,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:07,636 INFO L85 PathProgramCache]: Analyzing trace with hash -954494770, now seen corresponding path program 132 times [2022-11-16 11:53:07,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:07,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702056770] [2022-11-16 11:53:07,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:07,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:07,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:07,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:07,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:07,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702056770] [2022-11-16 11:53:07,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702056770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:07,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:07,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:07,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364426340] [2022-11-16 11:53:07,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:07,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:07,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:07,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:07,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:07,853 INFO L87 Difference]: Start difference. First operand 138 states and 237 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:08,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:08,125 INFO L93 Difference]: Finished difference Result 164 states and 270 transitions. [2022-11-16 11:53:08,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:53:08,125 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:08,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:08,125 INFO L225 Difference]: With dead ends: 164 [2022-11-16 11:53:08,125 INFO L226 Difference]: Without dead ends: 106 [2022-11-16 11:53:08,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:53:08,126 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:08,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 0 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:08,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-16 11:53:08,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-11-16 11:53:08,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.6857142857142857) internal successors, (177), 105 states have internal predecessors, (177), 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) [2022-11-16 11:53:08,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 177 transitions. [2022-11-16 11:53:08,128 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 177 transitions. Word has length 32 [2022-11-16 11:53:08,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:08,128 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 177 transitions. [2022-11-16 11:53:08,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:08,129 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 177 transitions. [2022-11-16 11:53:08,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:08,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:08,129 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] [2022-11-16 11:53:08,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-11-16 11:53:08,129 INFO L420 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:08,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:08,130 INFO L85 PathProgramCache]: Analyzing trace with hash 367192556, now seen corresponding path program 133 times [2022-11-16 11:53:08,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:08,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818675977] [2022-11-16 11:53:08,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:08,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:08,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:08,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:08,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818675977] [2022-11-16 11:53:08,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818675977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:08,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:08,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:08,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949081804] [2022-11-16 11:53:08,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:08,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:08,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:08,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:08,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:08,347 INFO L87 Difference]: Start difference. First operand 106 states and 177 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:08,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:08,622 INFO L93 Difference]: Finished difference Result 122 states and 199 transitions. [2022-11-16 11:53:08,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 11:53:08,623 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:08,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:08,623 INFO L225 Difference]: With dead ends: 122 [2022-11-16 11:53:08,623 INFO L226 Difference]: Without dead ends: 110 [2022-11-16 11:53:08,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-11-16 11:53:08,624 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:08,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 0 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:08,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-11-16 11:53:08,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2022-11-16 11:53:08,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.6476190476190475) internal successors, (173), 105 states have internal predecessors, (173), 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) [2022-11-16 11:53:08,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 173 transitions. [2022-11-16 11:53:08,626 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 173 transitions. Word has length 32 [2022-11-16 11:53:08,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:08,626 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 173 transitions. [2022-11-16 11:53:08,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:08,626 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 173 transitions. [2022-11-16 11:53:08,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:08,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:08,626 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] [2022-11-16 11:53:08,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-11-16 11:53:08,627 INFO L420 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:08,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:08,627 INFO L85 PathProgramCache]: Analyzing trace with hash 372367968, now seen corresponding path program 134 times [2022-11-16 11:53:08,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:08,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867094266] [2022-11-16 11:53:08,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:08,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:08,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:08,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:08,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867094266] [2022-11-16 11:53:08,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867094266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:08,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:08,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:08,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616238074] [2022-11-16 11:53:08,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:08,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:08,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:08,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:08,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:08,856 INFO L87 Difference]: Start difference. First operand 106 states and 173 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:09,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:09,147 INFO L93 Difference]: Finished difference Result 122 states and 195 transitions. [2022-11-16 11:53:09,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 11:53:09,147 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:09,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:09,148 INFO L225 Difference]: With dead ends: 122 [2022-11-16 11:53:09,148 INFO L226 Difference]: Without dead ends: 114 [2022-11-16 11:53:09,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:53:09,148 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:09,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 0 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:09,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-11-16 11:53:09,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 106. [2022-11-16 11:53:09,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.6095238095238096) internal successors, (169), 105 states have internal predecessors, (169), 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) [2022-11-16 11:53:09,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 169 transitions. [2022-11-16 11:53:09,150 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 169 transitions. Word has length 32 [2022-11-16 11:53:09,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:09,150 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 169 transitions. [2022-11-16 11:53:09,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:09,150 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 169 transitions. [2022-11-16 11:53:09,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:09,151 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:09,151 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] [2022-11-16 11:53:09,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-11-16 11:53:09,151 INFO L420 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:09,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:09,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1934366654, now seen corresponding path program 135 times [2022-11-16 11:53:09,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:09,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175679502] [2022-11-16 11:53:09,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:09,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:09,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:09,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:09,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175679502] [2022-11-16 11:53:09,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175679502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:09,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:09,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:09,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408579818] [2022-11-16 11:53:09,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:09,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:09,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:09,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:09,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:09,419 INFO L87 Difference]: Start difference. First operand 106 states and 169 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:09,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:09,605 INFO L93 Difference]: Finished difference Result 120 states and 188 transitions. [2022-11-16 11:53:09,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 11:53:09,606 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:09,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:09,606 INFO L225 Difference]: With dead ends: 120 [2022-11-16 11:53:09,606 INFO L226 Difference]: Without dead ends: 104 [2022-11-16 11:53:09,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:53:09,606 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:09,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 0 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:09,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-16 11:53:09,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 94. [2022-11-16 11:53:09,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.5591397849462365) internal successors, (145), 93 states have internal predecessors, (145), 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) [2022-11-16 11:53:09,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 145 transitions. [2022-11-16 11:53:09,608 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 145 transitions. Word has length 32 [2022-11-16 11:53:09,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:09,609 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 145 transitions. [2022-11-16 11:53:09,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:09,609 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 145 transitions. [2022-11-16 11:53:09,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:09,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:09,609 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] [2022-11-16 11:53:09,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-11-16 11:53:09,609 INFO L420 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:09,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:09,610 INFO L85 PathProgramCache]: Analyzing trace with hash 530765244, now seen corresponding path program 136 times [2022-11-16 11:53:09,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:09,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562169512] [2022-11-16 11:53:09,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:09,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:09,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:09,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:09,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562169512] [2022-11-16 11:53:09,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562169512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:09,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:09,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:09,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564999260] [2022-11-16 11:53:09,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:09,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:09,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:09,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:09,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:09,836 INFO L87 Difference]: Start difference. First operand 94 states and 145 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:10,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:10,083 INFO L93 Difference]: Finished difference Result 94 states and 143 transitions. [2022-11-16 11:53:10,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:53:10,091 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:10,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:10,091 INFO L225 Difference]: With dead ends: 94 [2022-11-16 11:53:10,091 INFO L226 Difference]: Without dead ends: 68 [2022-11-16 11:53:10,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:53:10,091 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:10,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 0 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:10,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-16 11:53:10,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-16 11:53:10,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.5223880597014925) internal successors, (102), 67 states have internal predecessors, (102), 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) [2022-11-16 11:53:10,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 102 transitions. [2022-11-16 11:53:10,093 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 102 transitions. Word has length 32 [2022-11-16 11:53:10,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:10,093 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 102 transitions. [2022-11-16 11:53:10,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:10,093 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 102 transitions. [2022-11-16 11:53:10,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:10,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:10,093 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] [2022-11-16 11:53:10,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-11-16 11:53:10,094 INFO L420 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:10,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:10,094 INFO L85 PathProgramCache]: Analyzing trace with hash -892017900, now seen corresponding path program 137 times [2022-11-16 11:53:10,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:10,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567296495] [2022-11-16 11:53:10,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:10,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:10,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:10,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:10,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567296495] [2022-11-16 11:53:10,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567296495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:10,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:10,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:10,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443731537] [2022-11-16 11:53:10,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:10,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:10,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:10,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:10,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:10,325 INFO L87 Difference]: Start difference. First operand 68 states and 102 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:10,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:10,579 INFO L93 Difference]: Finished difference Result 76 states and 112 transitions. [2022-11-16 11:53:10,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:53:10,579 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:10,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:10,580 INFO L225 Difference]: With dead ends: 76 [2022-11-16 11:53:10,580 INFO L226 Difference]: Without dead ends: 68 [2022-11-16 11:53:10,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:53:10,580 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:10,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:10,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-16 11:53:10,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-16 11:53:10,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.462686567164179) internal successors, (98), 67 states have internal predecessors, (98), 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) [2022-11-16 11:53:10,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 98 transitions. [2022-11-16 11:53:10,582 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 98 transitions. Word has length 32 [2022-11-16 11:53:10,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:10,582 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 98 transitions. [2022-11-16 11:53:10,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:10,582 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 98 transitions. [2022-11-16 11:53:10,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:10,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:10,583 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] [2022-11-16 11:53:10,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-11-16 11:53:10,583 INFO L420 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:10,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:10,583 INFO L85 PathProgramCache]: Analyzing trace with hash 289975490, now seen corresponding path program 138 times [2022-11-16 11:53:10,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:10,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745288364] [2022-11-16 11:53:10,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:10,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:10,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:10,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:10,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745288364] [2022-11-16 11:53:10,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745288364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:10,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:10,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:10,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645234383] [2022-11-16 11:53:10,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:10,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:10,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:10,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:10,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:10,845 INFO L87 Difference]: Start difference. First operand 68 states and 98 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:11,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:11,014 INFO L93 Difference]: Finished difference Result 72 states and 102 transitions. [2022-11-16 11:53:11,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:53:11,015 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:11,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:11,015 INFO L225 Difference]: With dead ends: 72 [2022-11-16 11:53:11,015 INFO L226 Difference]: Without dead ends: 56 [2022-11-16 11:53:11,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:53:11,015 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:11,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 11:53:11,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-16 11:53:11,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-16 11:53:11,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 55 states have internal predecessors, (74), 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) [2022-11-16 11:53:11,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 74 transitions. [2022-11-16 11:53:11,016 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 74 transitions. Word has length 32 [2022-11-16 11:53:11,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:11,017 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 74 transitions. [2022-11-16 11:53:11,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:11,017 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 74 transitions. [2022-11-16 11:53:11,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 11:53:11,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:53:11,017 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] [2022-11-16 11:53:11,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-11-16 11:53:11,017 INFO L420 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-16 11:53:11,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:11,017 INFO L85 PathProgramCache]: Analyzing trace with hash -2032772656, now seen corresponding path program 139 times [2022-11-16 11:53:11,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:11,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988522545] [2022-11-16 11:53:11,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:11,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:11,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:11,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:11,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988522545] [2022-11-16 11:53:11,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988522545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:11,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:11,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:53:11,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947161010] [2022-11-16 11:53:11,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:11,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:53:11,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:11,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:53:11,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:53:11,288 INFO L87 Difference]: Start difference. First operand 56 states and 74 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:11,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:11,406 INFO L93 Difference]: Finished difference Result 42 states and 58 transitions. [2022-11-16 11:53:11,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:53:11,407 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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 32 [2022-11-16 11:53:11,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:53:11,407 INFO L225 Difference]: With dead ends: 42 [2022-11-16 11:53:11,407 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 11:53:11,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:53:11,408 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:53:11,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:53:11,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 11:53:11,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 11:53:11,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-16 11:53:11,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 11:53:11,409 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2022-11-16 11:53:11,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:53:11,409 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:53:11,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-16 11:53:11,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:53:11,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 11:53:11,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 27 remaining) [2022-11-16 11:53:11,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 27 remaining) [2022-11-16 11:53:11,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 27 remaining) [2022-11-16 11:53:11,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 27 remaining) [2022-11-16 11:53:11,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 27 remaining) [2022-11-16 11:53:11,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 27 remaining) [2022-11-16 11:53:11,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 27 remaining) [2022-11-16 11:53:11,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 27 remaining) [2022-11-16 11:53:11,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 27 remaining) [2022-11-16 11:53:11,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 27 remaining) [2022-11-16 11:53:11,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 27 remaining) [2022-11-16 11:53:11,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 27 remaining) [2022-11-16 11:53:11,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 27 remaining) [2022-11-16 11:53:11,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 27 remaining) [2022-11-16 11:53:11,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 27 remaining) [2022-11-16 11:53:11,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 27 remaining) [2022-11-16 11:53:11,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 27 remaining) [2022-11-16 11:53:11,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 27 remaining) [2022-11-16 11:53:11,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 27 remaining) [2022-11-16 11:53:11,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 27 remaining) [2022-11-16 11:53:11,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK (6 of 27 remaining) [2022-11-16 11:53:11,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK (5 of 27 remaining) [2022-11-16 11:53:11,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 27 remaining) [2022-11-16 11:53:11,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 27 remaining) [2022-11-16 11:53:11,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 27 remaining) [2022-11-16 11:53:11,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 27 remaining) [2022-11-16 11:53:11,423 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 27 remaining) [2022-11-16 11:53:11,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-11-16 11:53:11,426 INFO L444 BasicCegarLoop]: Path program histogram: [139, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:53:11,429 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:53:11,429 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:53:11,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:53:11 BasicIcfg [2022-11-16 11:53:11,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:53:11,433 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:53:11,433 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:53:11,434 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:53:11,434 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:51:18" (3/4) ... [2022-11-16 11:53:11,437 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:53:11,443 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-16 11:53:11,443 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-16 11:53:11,443 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-16 11:53:11,444 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2022-11-16 11:53:11,444 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread5 [2022-11-16 11:53:11,451 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2022-11-16 11:53:11,451 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 11:53:11,451 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 11:53:11,452 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:53:11,500 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019e349c-688a-4d79-944c-876cacbb919b/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:53:11,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:53:11,501 INFO L158 Benchmark]: Toolchain (without parser) took 114127.96ms. Allocated memory was 92.3MB in the beginning and 914.4MB in the end (delta: 822.1MB). Free memory was 54.8MB in the beginning and 583.3MB in the end (delta: -528.5MB). Peak memory consumption was 293.0MB. Max. memory is 16.1GB. [2022-11-16 11:53:11,501 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 92.3MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:53:11,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.43ms. Allocated memory is still 92.3MB. Free memory was 54.6MB in the beginning and 67.9MB in the end (delta: -13.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:53:11,501 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.39ms. Allocated memory is still 92.3MB. Free memory was 67.9MB in the beginning and 65.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:53:11,502 INFO L158 Benchmark]: Boogie Preprocessor took 36.72ms. Allocated memory is still 92.3MB. Free memory was 65.6MB in the beginning and 64.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:53:11,502 INFO L158 Benchmark]: RCFGBuilder took 756.46ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 64.0MB in the beginning and 89.3MB in the end (delta: -25.3MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2022-11-16 11:53:11,502 INFO L158 Benchmark]: TraceAbstraction took 112794.41ms. Allocated memory was 113.2MB in the beginning and 914.4MB in the end (delta: 801.1MB). Free memory was 88.7MB in the beginning and 586.4MB in the end (delta: -497.7MB). Peak memory consumption was 302.9MB. Max. memory is 16.1GB. [2022-11-16 11:53:11,502 INFO L158 Benchmark]: Witness Printer took 67.35ms. Allocated memory is still 914.4MB. Free memory was 586.4MB in the beginning and 583.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:53:11,503 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 92.3MB. Free memory is still 71.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.43ms. Allocated memory is still 92.3MB. Free memory was 54.6MB in the beginning and 67.9MB in the end (delta: -13.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.39ms. Allocated memory is still 92.3MB. Free memory was 67.9MB in the beginning and 65.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.72ms. Allocated memory is still 92.3MB. Free memory was 65.6MB in the beginning and 64.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 756.46ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 64.0MB in the beginning and 89.3MB in the end (delta: -25.3MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. * TraceAbstraction took 112794.41ms. Allocated memory was 113.2MB in the beginning and 914.4MB in the end (delta: 801.1MB). Free memory was 88.7MB in the beginning and 586.4MB in the end (delta: -497.7MB). Peak memory consumption was 302.9MB. Max. memory is 16.1GB. * Witness Printer took 67.35ms. Allocated memory is still 914.4MB. Free memory was 586.4MB in the beginning and 583.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.9s, 203 PlacesBefore, 75 PlacesAfterwards, 189 TransitionsBefore, 59 TransitionsAfterwards, 2702 CoEnabledTransitionPairs, 7 FixpointIterations, 99 TrivialSequentialCompositions, 68 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 175 TotalNumberOfCompositions, 6758 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3569, independent: 3444, independent conditional: 0, independent unconditional: 3444, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1656, independent: 1616, independent conditional: 0, independent unconditional: 1616, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1656, independent: 1563, independent conditional: 0, independent unconditional: 1563, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 93, independent: 53, independent conditional: 0, independent unconditional: 53, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 259, independent: 126, independent conditional: 0, independent unconditional: 126, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3569, independent: 1828, independent conditional: 0, independent unconditional: 1828, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 1656, unknown conditional: 0, unknown unconditional: 1656] , Statistics on independence cache: Total cache size (in pairs): 203, Positive cache size: 188, Positive conditional cache size: 0, Positive unconditional cache size: 188, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 168]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 139]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 229 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 112.6s, OverallIterations: 150, TraceHistogramMax: 1, PathProgramHistogramMax: 139, EmptinessCheckTime: 0.5s, AutomataDifference: 52.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7512 SdHoareTripleChecker+Valid, 42.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7512 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 35.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3971 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62915 IncrementalHoareTripleChecker+Invalid, 66886 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3971 mSolverCounterUnsat, 0 mSDtfsCounter, 62915 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1898 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1744 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3692 ImplicationChecksByTransitivity, 12.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3092occurred in iteration=54, InterpolantAutomatonStates: 1839, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.3s AutomataMinimizationTime, 150 MinimizatonAttempts, 48512 StatesRemovedByMinimization, 115 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 5.2s SatisfiabilityAnalysisTime, 33.6s InterpolantComputationTime, 4519 NumberOfCodeBlocks, 4519 NumberOfCodeBlocksAsserted, 150 NumberOfCheckSat, 4369 ConstructedInterpolants, 0 QuantifiedInterpolants, 21643 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 150 InterpolantComputations, 150 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 - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:53:11,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_019e349c-688a-4d79-944c-876cacbb919b/bin/uautomizer-tPACEb0tL8/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 Writing output log to file Ultimate.log Result: TRUE