./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_12.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/bin/uautomizer-TMbwUNV5ro --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 12c3feea735c5360de013afbcf9aaa3880d39f75cbb7661493cccf003151044d --- 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-8393723 [2022-11-18 20:52:26,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:52:26,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:52:26,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:52:26,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:52:26,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:52:26,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:52:26,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:52:26,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:52:26,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:52:26,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:52:26,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:52:26,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:52:26,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:52:26,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:52:26,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:52:26,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:52:26,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:52:26,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:52:26,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:52:26,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:52:26,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:52:26,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:52:26,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:52:26,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:52:26,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:52:26,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:52:26,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:52:26,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:52:26,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:52:26,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:52:26,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:52:26,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:52:26,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:52:27,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:52:27,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:52:27,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:52:27,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:52:27,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:52:27,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:52:27,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:52:27,007 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 20:52:27,057 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:52:27,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:52:27,058 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:52:27,058 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:52:27,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:52:27,060 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:52:27,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:52:27,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:52:27,062 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:52:27,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:52:27,063 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:52:27,064 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:52:27,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:52:27,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:52:27,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:52:27,065 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 20:52:27,065 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 20:52:27,066 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 20:52:27,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:52:27,066 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:52:27,067 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:52:27,067 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:52:27,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:52:27,068 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:52:27,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:52:27,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:52:27,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:52:27,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:52:27,070 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:52:27,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:52:27,070 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_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12c3feea735c5360de013afbcf9aaa3880d39f75cbb7661493cccf003151044d [2022-11-18 20:52:27,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:52:27,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:52:27,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:52:27,457 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:52:27,458 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:52:27,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/locks/test_locks_12.c [2022-11-18 20:52:27,539 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/bin/uautomizer-TMbwUNV5ro/data/0e74e1da4/f7505114af1345dda188b3f53f9e2d07/FLAGb03e0a379 [2022-11-18 20:52:28,157 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:52:28,158 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/sv-benchmarks/c/locks/test_locks_12.c [2022-11-18 20:52:28,168 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/bin/uautomizer-TMbwUNV5ro/data/0e74e1da4/f7505114af1345dda188b3f53f9e2d07/FLAGb03e0a379 [2022-11-18 20:52:28,520 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/bin/uautomizer-TMbwUNV5ro/data/0e74e1da4/f7505114af1345dda188b3f53f9e2d07 [2022-11-18 20:52:28,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:52:28,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:52:28,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:52:28,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:52:28,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:52:28,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:52:28" (1/1) ... [2022-11-18 20:52:28,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48bf1ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:28, skipping insertion in model container [2022-11-18 20:52:28,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:52:28" (1/1) ... [2022-11-18 20:52:28,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:52:28,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:52:28,863 WARN L234 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_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/sv-benchmarks/c/locks/test_locks_12.c[4591,4604] [2022-11-18 20:52:28,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:52:28,889 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:52:28,944 WARN L234 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_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/sv-benchmarks/c/locks/test_locks_12.c[4591,4604] [2022-11-18 20:52:28,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:52:28,967 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:52:28,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:28 WrapperNode [2022-11-18 20:52:28,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:52:28,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:52:28,972 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:52:28,972 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:52:28,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:28" (1/1) ... [2022-11-18 20:52:29,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:28" (1/1) ... [2022-11-18 20:52:29,043 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 160 [2022-11-18 20:52:29,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:52:29,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:52:29,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:52:29,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:52:29,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:28" (1/1) ... [2022-11-18 20:52:29,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:28" (1/1) ... [2022-11-18 20:52:29,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:28" (1/1) ... [2022-11-18 20:52:29,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:28" (1/1) ... [2022-11-18 20:52:29,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:28" (1/1) ... [2022-11-18 20:52:29,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:28" (1/1) ... [2022-11-18 20:52:29,094 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:28" (1/1) ... [2022-11-18 20:52:29,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:28" (1/1) ... [2022-11-18 20:52:29,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:52:29,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:52:29,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:52:29,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:52:29,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:28" (1/1) ... [2022-11-18 20:52:29,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:52:29,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:52:29,131 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:52:29,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:52:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:52:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:52:29,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:52:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:52:29,302 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:52:29,304 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:52:29,672 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:52:29,682 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:52:29,695 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:52:29,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:52:29 BoogieIcfgContainer [2022-11-18 20:52:29,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:52:29,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:52:29,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:52:29,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:52:29,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:52:28" (1/3) ... [2022-11-18 20:52:29,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd48762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:52:29, skipping insertion in model container [2022-11-18 20:52:29,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:52:28" (2/3) ... [2022-11-18 20:52:29,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd48762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:52:29, skipping insertion in model container [2022-11-18 20:52:29,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:52:29" (3/3) ... [2022-11-18 20:52:29,721 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_12.c [2022-11-18 20:52:29,759 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:52:29,759 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 20:52:29,838 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:52:29,854 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;@3b769485, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:52:29,855 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 20:52:29,862 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 44 states have (on average 1.9318181818181819) internal successors, (85), 46 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:29,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:52:29,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:29,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:52:29,874 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:29,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:29,884 INFO L85 PathProgramCache]: Analyzing trace with hash 28704555, now seen corresponding path program 1 times [2022-11-18 20:52:29,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:29,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887932064] [2022-11-18 20:52:29,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:29,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:30,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:30,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:30,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887932064] [2022-11-18 20:52:30,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887932064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:30,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:30,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:52:30,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027661226] [2022-11-18 20:52:30,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:30,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:52:30,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:30,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:52:30,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:52:30,166 INFO L87 Difference]: Start difference. First operand has 47 states, 44 states have (on average 1.9318181818181819) internal successors, (85), 46 states have internal predecessors, (85), 0 states have call successors, (0), 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, 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) [2022-11-18 20:52:30,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:30,194 INFO L93 Difference]: Finished difference Result 47 states and 82 transitions. [2022-11-18 20:52:30,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:52:30,198 INFO L78 Accepts]: Start accepts. Automaton has has 2 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 [2022-11-18 20:52:30,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:30,207 INFO L225 Difference]: With dead ends: 47 [2022-11-18 20:52:30,207 INFO L226 Difference]: Without dead ends: 45 [2022-11-18 20:52:30,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:52:30,214 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:30,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:30,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-18 20:52:30,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-18 20:52:30,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 44 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:30,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 80 transitions. [2022-11-18 20:52:30,260 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 80 transitions. Word has length 5 [2022-11-18 20:52:30,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:30,262 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 80 transitions. [2022-11-18 20:52:30,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 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) [2022-11-18 20:52:30,263 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 80 transitions. [2022-11-18 20:52:30,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 20:52:30,263 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:30,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:52:30,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:52:30,264 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:30,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:30,267 INFO L85 PathProgramCache]: Analyzing trace with hash 889699051, now seen corresponding path program 1 times [2022-11-18 20:52:30,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:30,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495361528] [2022-11-18 20:52:30,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:30,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:30,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:30,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:30,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:30,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495361528] [2022-11-18 20:52:30,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495361528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:30,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:30,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:52:30,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228564518] [2022-11-18 20:52:30,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:30,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:30,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:30,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:30,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:30,412 INFO L87 Difference]: Start difference. First operand 45 states and 80 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:30,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:30,436 INFO L93 Difference]: Finished difference Result 44 states and 79 transitions. [2022-11-18 20:52:30,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:30,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-11-18 20:52:30,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:30,446 INFO L225 Difference]: With dead ends: 44 [2022-11-18 20:52:30,446 INFO L226 Difference]: Without dead ends: 42 [2022-11-18 20:52:30,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:30,448 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 74 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:30,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 79 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:30,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-18 20:52:30,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-18 20:52:30,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.8780487804878048) internal successors, (77), 41 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:30,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 77 transitions. [2022-11-18 20:52:30,459 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 77 transitions. Word has length 6 [2022-11-18 20:52:30,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:30,460 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 77 transitions. [2022-11-18 20:52:30,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:30,462 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 77 transitions. [2022-11-18 20:52:30,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 20:52:30,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:30,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:30,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:52:30,466 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:30,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:30,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1341605783, now seen corresponding path program 1 times [2022-11-18 20:52:30,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:30,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296265253] [2022-11-18 20:52:30,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:30,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:30,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:30,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:30,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296265253] [2022-11-18 20:52:30,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296265253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:30,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:30,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:30,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356652358] [2022-11-18 20:52:30,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:30,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:30,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:30,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:30,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:30,622 INFO L87 Difference]: Start difference. First operand 42 states and 77 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:30,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:30,674 INFO L93 Difference]: Finished difference Result 81 states and 149 transitions. [2022-11-18 20:52:30,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:30,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-11-18 20:52:30,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:30,676 INFO L225 Difference]: With dead ends: 81 [2022-11-18 20:52:30,676 INFO L226 Difference]: Without dead ends: 81 [2022-11-18 20:52:30,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:30,678 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 58 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:30,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 151 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:30,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-18 20:52:30,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 55. [2022-11-18 20:52:30,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.8888888888888888) internal successors, (102), 54 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) [2022-11-18 20:52:30,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 102 transitions. [2022-11-18 20:52:30,687 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 102 transitions. Word has length 19 [2022-11-18 20:52:30,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:30,690 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 102 transitions. [2022-11-18 20:52:30,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:30,691 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 102 transitions. [2022-11-18 20:52:30,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 20:52:30,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:30,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:30,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:52:30,693 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:30,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:30,697 INFO L85 PathProgramCache]: Analyzing trace with hash 61742105, now seen corresponding path program 1 times [2022-11-18 20:52:30,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:30,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905484345] [2022-11-18 20:52:30,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:30,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:30,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:30,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:30,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905484345] [2022-11-18 20:52:30,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905484345] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:30,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:30,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:30,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206417786] [2022-11-18 20:52:30,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:30,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:30,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:30,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:30,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:30,843 INFO L87 Difference]: Start difference. First operand 55 states and 102 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:30,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:30,874 INFO L93 Difference]: Finished difference Result 81 states and 147 transitions. [2022-11-18 20:52:30,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:30,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-11-18 20:52:30,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:30,876 INFO L225 Difference]: With dead ends: 81 [2022-11-18 20:52:30,876 INFO L226 Difference]: Without dead ends: 81 [2022-11-18 20:52:30,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:30,878 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 58 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:30,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 171 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:30,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-18 20:52:30,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2022-11-18 20:52:30,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.8717948717948718) internal successors, (146), 78 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:30,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 146 transitions. [2022-11-18 20:52:30,888 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 146 transitions. Word has length 19 [2022-11-18 20:52:30,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:30,888 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 146 transitions. [2022-11-18 20:52:30,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:30,889 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 146 transitions. [2022-11-18 20:52:30,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-18 20:52:30,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:30,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:30,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:52:30,890 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:30,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:30,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1359680987, now seen corresponding path program 1 times [2022-11-18 20:52:30,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:30,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623549189] [2022-11-18 20:52:30,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:30,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:30,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:30,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:30,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623549189] [2022-11-18 20:52:30,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623549189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:30,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:30,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:30,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619021052] [2022-11-18 20:52:30,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:30,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:30,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:30,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:30,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:30,994 INFO L87 Difference]: Start difference. First operand 79 states and 146 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:31,023 INFO L93 Difference]: Finished difference Result 84 states and 149 transitions. [2022-11-18 20:52:31,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:31,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2022-11-18 20:52:31,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:31,027 INFO L225 Difference]: With dead ends: 84 [2022-11-18 20:52:31,027 INFO L226 Difference]: Without dead ends: 84 [2022-11-18 20:52:31,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:31,029 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 60 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:31,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 192 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:31,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-18 20:52:31,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2022-11-18 20:52:31,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 1.8271604938271604) internal successors, (148), 81 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 148 transitions. [2022-11-18 20:52:31,047 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 148 transitions. Word has length 20 [2022-11-18 20:52:31,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:31,050 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 148 transitions. [2022-11-18 20:52:31,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,051 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 148 transitions. [2022-11-18 20:52:31,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-18 20:52:31,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:31,053 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:31,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:52:31,054 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:31,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:31,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1914217955, now seen corresponding path program 1 times [2022-11-18 20:52:31,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:31,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308285299] [2022-11-18 20:52:31,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:31,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:31,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:31,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:31,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308285299] [2022-11-18 20:52:31,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308285299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:31,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:31,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:31,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702087927] [2022-11-18 20:52:31,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:31,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:31,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:31,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:31,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:31,105 INFO L87 Difference]: Start difference. First operand 82 states and 148 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:31,120 INFO L93 Difference]: Finished difference Result 155 states and 282 transitions. [2022-11-18 20:52:31,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:31,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2022-11-18 20:52:31,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:31,122 INFO L225 Difference]: With dead ends: 155 [2022-11-18 20:52:31,122 INFO L226 Difference]: Without dead ends: 155 [2022-11-18 20:52:31,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:31,123 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 55 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:31,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 149 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:31,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-18 20:52:31,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 109. [2022-11-18 20:52:31,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 108 states have (on average 1.8240740740740742) internal successors, (197), 108 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 197 transitions. [2022-11-18 20:52:31,134 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 197 transitions. Word has length 20 [2022-11-18 20:52:31,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:31,134 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 197 transitions. [2022-11-18 20:52:31,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,135 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 197 transitions. [2022-11-18 20:52:31,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-18 20:52:31,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:31,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:31,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:52:31,136 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:31,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:31,137 INFO L85 PathProgramCache]: Analyzing trace with hash 634354277, now seen corresponding path program 1 times [2022-11-18 20:52:31,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:31,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382222233] [2022-11-18 20:52:31,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:31,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:31,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:31,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:31,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382222233] [2022-11-18 20:52:31,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382222233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:31,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:31,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:31,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692142877] [2022-11-18 20:52:31,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:31,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:31,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:31,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:31,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:31,178 INFO L87 Difference]: Start difference. First operand 109 states and 197 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:31,205 INFO L93 Difference]: Finished difference Result 157 states and 280 transitions. [2022-11-18 20:52:31,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:31,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2022-11-18 20:52:31,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:31,207 INFO L225 Difference]: With dead ends: 157 [2022-11-18 20:52:31,207 INFO L226 Difference]: Without dead ends: 157 [2022-11-18 20:52:31,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:31,208 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 57 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:31,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 172 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:31,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-18 20:52:31,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 155. [2022-11-18 20:52:31,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.8116883116883118) internal successors, (279), 154 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 279 transitions. [2022-11-18 20:52:31,219 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 279 transitions. Word has length 20 [2022-11-18 20:52:31,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:31,219 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 279 transitions. [2022-11-18 20:52:31,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,220 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 279 transitions. [2022-11-18 20:52:31,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-18 20:52:31,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:31,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:31,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:52:31,221 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:31,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:31,222 INFO L85 PathProgramCache]: Analyzing trace with hash -788572498, now seen corresponding path program 1 times [2022-11-18 20:52:31,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:31,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097310696] [2022-11-18 20:52:31,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:31,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:31,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:31,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:31,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097310696] [2022-11-18 20:52:31,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097310696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:31,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:31,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:31,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900537424] [2022-11-18 20:52:31,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:31,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:31,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:31,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:31,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:31,280 INFO L87 Difference]: Start difference. First operand 155 states and 279 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:31,294 INFO L93 Difference]: Finished difference Result 159 states and 280 transitions. [2022-11-18 20:52:31,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:31,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2022-11-18 20:52:31,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:31,296 INFO L225 Difference]: With dead ends: 159 [2022-11-18 20:52:31,297 INFO L226 Difference]: Without dead ends: 159 [2022-11-18 20:52:31,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:31,298 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 59 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:31,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 188 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:31,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-18 20:52:31,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2022-11-18 20:52:31,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 156 states have (on average 1.7884615384615385) internal successors, (279), 156 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 279 transitions. [2022-11-18 20:52:31,311 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 279 transitions. Word has length 21 [2022-11-18 20:52:31,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:31,311 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 279 transitions. [2022-11-18 20:52:31,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,312 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 279 transitions. [2022-11-18 20:52:31,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-18 20:52:31,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:31,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:31,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:52:31,314 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:31,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:31,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1809640852, now seen corresponding path program 1 times [2022-11-18 20:52:31,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:31,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002055367] [2022-11-18 20:52:31,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:31,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:31,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:31,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:31,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002055367] [2022-11-18 20:52:31,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002055367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:31,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:31,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:31,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638614151] [2022-11-18 20:52:31,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:31,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:31,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:31,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:31,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:31,359 INFO L87 Difference]: Start difference. First operand 157 states and 279 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:31,374 INFO L93 Difference]: Finished difference Result 303 states and 532 transitions. [2022-11-18 20:52:31,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:31,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2022-11-18 20:52:31,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:31,377 INFO L225 Difference]: With dead ends: 303 [2022-11-18 20:52:31,377 INFO L226 Difference]: Without dead ends: 303 [2022-11-18 20:52:31,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:31,378 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 57 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:31,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 151 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:31,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-11-18 20:52:31,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 301. [2022-11-18 20:52:31,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 300 states have (on average 1.77) internal successors, (531), 300 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 531 transitions. [2022-11-18 20:52:31,409 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 531 transitions. Word has length 21 [2022-11-18 20:52:31,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:31,410 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 531 transitions. [2022-11-18 20:52:31,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,410 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 531 transitions. [2022-11-18 20:52:31,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-18 20:52:31,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:31,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:31,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:52:31,412 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:31,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:31,413 INFO L85 PathProgramCache]: Analyzing trace with hash -529777174, now seen corresponding path program 1 times [2022-11-18 20:52:31,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:31,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082931065] [2022-11-18 20:52:31,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:31,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:31,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:31,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:31,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082931065] [2022-11-18 20:52:31,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082931065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:31,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:31,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:31,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168177654] [2022-11-18 20:52:31,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:31,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:31,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:31,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:31,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:31,499 INFO L87 Difference]: Start difference. First operand 301 states and 531 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:31,516 INFO L93 Difference]: Finished difference Result 383 states and 680 transitions. [2022-11-18 20:52:31,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:31,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2022-11-18 20:52:31,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:31,520 INFO L225 Difference]: With dead ends: 383 [2022-11-18 20:52:31,520 INFO L226 Difference]: Without dead ends: 383 [2022-11-18 20:52:31,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:31,523 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 52 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:31,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 206 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:31,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-11-18 20:52:31,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 301. [2022-11-18 20:52:31,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 300 states have (on average 1.7566666666666666) internal successors, (527), 300 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 527 transitions. [2022-11-18 20:52:31,558 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 527 transitions. Word has length 21 [2022-11-18 20:52:31,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:31,559 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 527 transitions. [2022-11-18 20:52:31,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,559 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 527 transitions. [2022-11-18 20:52:31,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-18 20:52:31,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:31,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:31,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:52:31,574 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:31,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:31,575 INFO L85 PathProgramCache]: Analyzing trace with hash -264078182, now seen corresponding path program 1 times [2022-11-18 20:52:31,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:31,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121850150] [2022-11-18 20:52:31,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:31,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:31,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:31,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:31,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121850150] [2022-11-18 20:52:31,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121850150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:31,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:31,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:31,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080803658] [2022-11-18 20:52:31,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:31,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:31,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:31,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:31,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:31,644 INFO L87 Difference]: Start difference. First operand 301 states and 527 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:31,664 INFO L93 Difference]: Finished difference Result 563 states and 992 transitions. [2022-11-18 20:52:31,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:31,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-18 20:52:31,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:31,668 INFO L225 Difference]: With dead ends: 563 [2022-11-18 20:52:31,668 INFO L226 Difference]: Without dead ends: 563 [2022-11-18 20:52:31,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:31,672 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 49 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:31,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 145 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:31,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-11-18 20:52:31,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 417. [2022-11-18 20:52:31,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 416 states have (on average 1.7283653846153846) internal successors, (719), 416 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 719 transitions. [2022-11-18 20:52:31,688 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 719 transitions. Word has length 22 [2022-11-18 20:52:31,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:31,690 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 719 transitions. [2022-11-18 20:52:31,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,690 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 719 transitions. [2022-11-18 20:52:31,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-18 20:52:31,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:31,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:31,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:52:31,693 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:31,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:31,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1543941860, now seen corresponding path program 1 times [2022-11-18 20:52:31,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:31,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427800159] [2022-11-18 20:52:31,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:31,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:31,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:31,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:31,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427800159] [2022-11-18 20:52:31,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427800159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:31,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:31,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:31,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645240674] [2022-11-18 20:52:31,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:31,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:31,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:31,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:31,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:31,761 INFO L87 Difference]: Start difference. First operand 417 states and 719 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:31,777 INFO L93 Difference]: Finished difference Result 587 states and 1004 transitions. [2022-11-18 20:52:31,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:31,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-11-18 20:52:31,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:31,783 INFO L225 Difference]: With dead ends: 587 [2022-11-18 20:52:31,783 INFO L226 Difference]: Without dead ends: 587 [2022-11-18 20:52:31,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:31,784 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 55 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:31,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 174 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:31,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2022-11-18 20:52:31,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 585. [2022-11-18 20:52:31,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 584 states have (on average 1.7174657534246576) internal successors, (1003), 584 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 1003 transitions. [2022-11-18 20:52:31,805 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 1003 transitions. Word has length 22 [2022-11-18 20:52:31,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:31,805 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 1003 transitions. [2022-11-18 20:52:31,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,806 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 1003 transitions. [2022-11-18 20:52:31,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 20:52:31,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:31,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:31,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:52:31,809 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:31,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:31,810 INFO L85 PathProgramCache]: Analyzing trace with hash 403724673, now seen corresponding path program 1 times [2022-11-18 20:52:31,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:31,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950345838] [2022-11-18 20:52:31,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:31,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:31,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:31,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:31,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950345838] [2022-11-18 20:52:31,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950345838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:31,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:31,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:31,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344472249] [2022-11-18 20:52:31,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:31,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:31,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:31,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:31,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:31,873 INFO L87 Difference]: Start difference. First operand 585 states and 1003 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:31,895 INFO L93 Difference]: Finished difference Result 599 states and 1012 transitions. [2022-11-18 20:52:31,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:31,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2022-11-18 20:52:31,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:31,899 INFO L225 Difference]: With dead ends: 599 [2022-11-18 20:52:31,899 INFO L226 Difference]: Without dead ends: 599 [2022-11-18 20:52:31,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:31,902 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 57 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:31,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 180 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:31,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-11-18 20:52:31,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 597. [2022-11-18 20:52:31,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 596 states have (on average 1.6963087248322148) internal successors, (1011), 596 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 1011 transitions. [2022-11-18 20:52:31,943 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 1011 transitions. Word has length 23 [2022-11-18 20:52:31,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:31,943 INFO L495 AbstractCegarLoop]: Abstraction has 597 states and 1011 transitions. [2022-11-18 20:52:31,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:31,944 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 1011 transitions. [2022-11-18 20:52:31,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 20:52:31,944 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:31,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:31,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:52:31,945 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:31,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:31,946 INFO L85 PathProgramCache]: Analyzing trace with hash -617343681, now seen corresponding path program 1 times [2022-11-18 20:52:31,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:31,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113754430] [2022-11-18 20:52:31,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:31,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:31,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:31,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:31,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113754430] [2022-11-18 20:52:31,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113754430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:31,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:31,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:31,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830748211] [2022-11-18 20:52:31,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:31,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:31,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:31,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:31,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:31,983 INFO L87 Difference]: Start difference. First operand 597 states and 1011 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:32,006 INFO L93 Difference]: Finished difference Result 1095 states and 1868 transitions. [2022-11-18 20:52:32,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:32,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2022-11-18 20:52:32,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:32,011 INFO L225 Difference]: With dead ends: 1095 [2022-11-18 20:52:32,011 INFO L226 Difference]: Without dead ends: 1095 [2022-11-18 20:52:32,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:32,014 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 46 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:32,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 143 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:32,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2022-11-18 20:52:32,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 837. [2022-11-18 20:52:32,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 836 states have (on average 1.6590909090909092) internal successors, (1387), 836 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1387 transitions. [2022-11-18 20:52:32,035 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1387 transitions. Word has length 23 [2022-11-18 20:52:32,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:32,036 INFO L495 AbstractCegarLoop]: Abstraction has 837 states and 1387 transitions. [2022-11-18 20:52:32,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,036 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1387 transitions. [2022-11-18 20:52:32,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 20:52:32,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:32,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:32,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:52:32,038 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:32,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:32,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1897207359, now seen corresponding path program 1 times [2022-11-18 20:52:32,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:32,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149110976] [2022-11-18 20:52:32,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:32,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:32,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:32,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:32,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149110976] [2022-11-18 20:52:32,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149110976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:32,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:32,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:32,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484411104] [2022-11-18 20:52:32,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:32,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:32,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:32,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:32,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:32,072 INFO L87 Difference]: Start difference. First operand 837 states and 1387 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:32,090 INFO L93 Difference]: Finished difference Result 1159 states and 1908 transitions. [2022-11-18 20:52:32,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:32,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2022-11-18 20:52:32,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:32,097 INFO L225 Difference]: With dead ends: 1159 [2022-11-18 20:52:32,097 INFO L226 Difference]: Without dead ends: 1159 [2022-11-18 20:52:32,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:32,100 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 54 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:32,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 175 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:32,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2022-11-18 20:52:32,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1157. [2022-11-18 20:52:32,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.6496539792387543) internal successors, (1907), 1156 states have internal predecessors, (1907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1907 transitions. [2022-11-18 20:52:32,129 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1907 transitions. Word has length 23 [2022-11-18 20:52:32,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:32,131 INFO L495 AbstractCegarLoop]: Abstraction has 1157 states and 1907 transitions. [2022-11-18 20:52:32,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1907 transitions. [2022-11-18 20:52:32,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 20:52:32,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:32,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:32,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:52:32,134 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:32,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:32,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1957570863, now seen corresponding path program 1 times [2022-11-18 20:52:32,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:32,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104470499] [2022-11-18 20:52:32,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:32,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:32,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:32,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:32,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104470499] [2022-11-18 20:52:32,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104470499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:32,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:32,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:32,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596991272] [2022-11-18 20:52:32,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:32,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:32,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:32,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:32,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:32,184 INFO L87 Difference]: Start difference. First operand 1157 states and 1907 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:32,203 INFO L93 Difference]: Finished difference Result 1175 states and 1908 transitions. [2022-11-18 20:52:32,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:32,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2022-11-18 20:52:32,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:32,208 INFO L225 Difference]: With dead ends: 1175 [2022-11-18 20:52:32,209 INFO L226 Difference]: Without dead ends: 1175 [2022-11-18 20:52:32,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:32,210 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 56 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:32,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 176 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:32,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2022-11-18 20:52:32,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1173. [2022-11-18 20:52:32,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1172 states have (on average 1.6271331058020477) internal successors, (1907), 1172 states have internal predecessors, (1907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1907 transitions. [2022-11-18 20:52:32,239 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1907 transitions. Word has length 24 [2022-11-18 20:52:32,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:32,240 INFO L495 AbstractCegarLoop]: Abstraction has 1173 states and 1907 transitions. [2022-11-18 20:52:32,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1907 transitions. [2022-11-18 20:52:32,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 20:52:32,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:32,241 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:32,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:52:32,242 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:32,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:32,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1316328079, now seen corresponding path program 1 times [2022-11-18 20:52:32,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:32,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699463526] [2022-11-18 20:52:32,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:32,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:32,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:32,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:32,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699463526] [2022-11-18 20:52:32,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699463526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:32,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:32,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:32,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522658369] [2022-11-18 20:52:32,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:32,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:32,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:32,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:32,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:32,289 INFO L87 Difference]: Start difference. First operand 1173 states and 1907 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:32,339 INFO L93 Difference]: Finished difference Result 2119 states and 3476 transitions. [2022-11-18 20:52:32,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:32,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2022-11-18 20:52:32,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:32,347 INFO L225 Difference]: With dead ends: 2119 [2022-11-18 20:52:32,347 INFO L226 Difference]: Without dead ends: 2119 [2022-11-18 20:52:32,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:32,348 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 43 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:32,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 141 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:32,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2022-11-18 20:52:32,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 1669. [2022-11-18 20:52:32,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1669 states, 1668 states have (on average 1.5845323741007193) internal successors, (2643), 1668 states have internal predecessors, (2643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 2643 transitions. [2022-11-18 20:52:32,419 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 2643 transitions. Word has length 24 [2022-11-18 20:52:32,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:32,420 INFO L495 AbstractCegarLoop]: Abstraction has 1669 states and 2643 transitions. [2022-11-18 20:52:32,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 2643 transitions. [2022-11-18 20:52:32,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 20:52:32,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:32,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:32,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 20:52:32,424 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:32,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:32,424 INFO L85 PathProgramCache]: Analyzing trace with hash 36464401, now seen corresponding path program 1 times [2022-11-18 20:52:32,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:32,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558985552] [2022-11-18 20:52:32,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:32,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:32,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:32,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:32,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558985552] [2022-11-18 20:52:32,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558985552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:32,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:32,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:32,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784587037] [2022-11-18 20:52:32,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:32,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:32,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:32,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:32,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:32,466 INFO L87 Difference]: Start difference. First operand 1669 states and 2643 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:32,487 INFO L93 Difference]: Finished difference Result 2279 states and 3588 transitions. [2022-11-18 20:52:32,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:32,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2022-11-18 20:52:32,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:32,495 INFO L225 Difference]: With dead ends: 2279 [2022-11-18 20:52:32,495 INFO L226 Difference]: Without dead ends: 2279 [2022-11-18 20:52:32,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:32,496 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 53 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:32,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 176 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:32,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2022-11-18 20:52:32,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2277. [2022-11-18 20:52:32,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2277 states, 2276 states have (on average 1.5760105448154658) internal successors, (3587), 2276 states have internal predecessors, (3587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2277 states to 2277 states and 3587 transitions. [2022-11-18 20:52:32,547 INFO L78 Accepts]: Start accepts. Automaton has 2277 states and 3587 transitions. Word has length 24 [2022-11-18 20:52:32,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:32,548 INFO L495 AbstractCegarLoop]: Abstraction has 2277 states and 3587 transitions. [2022-11-18 20:52:32,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,548 INFO L276 IsEmpty]: Start isEmpty. Operand 2277 states and 3587 transitions. [2022-11-18 20:52:32,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 20:52:32,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:32,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:32,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 20:52:32,551 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:32,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:32,552 INFO L85 PathProgramCache]: Analyzing trace with hash -2143288106, now seen corresponding path program 1 times [2022-11-18 20:52:32,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:32,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953275660] [2022-11-18 20:52:32,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:32,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:32,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:32,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:32,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953275660] [2022-11-18 20:52:32,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953275660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:32,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:32,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:32,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924468073] [2022-11-18 20:52:32,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:32,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:32,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:32,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:32,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:32,585 INFO L87 Difference]: Start difference. First operand 2277 states and 3587 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:32,610 INFO L93 Difference]: Finished difference Result 2311 states and 3588 transitions. [2022-11-18 20:52:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:32,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2022-11-18 20:52:32,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:32,618 INFO L225 Difference]: With dead ends: 2311 [2022-11-18 20:52:32,618 INFO L226 Difference]: Without dead ends: 2311 [2022-11-18 20:52:32,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:32,619 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 55 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:32,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 172 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:32,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2022-11-18 20:52:32,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 2309. [2022-11-18 20:52:32,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2309 states, 2308 states have (on average 1.5541594454072791) internal successors, (3587), 2308 states have internal predecessors, (3587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 3587 transitions. [2022-11-18 20:52:32,673 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 3587 transitions. Word has length 25 [2022-11-18 20:52:32,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:32,673 INFO L495 AbstractCegarLoop]: Abstraction has 2309 states and 3587 transitions. [2022-11-18 20:52:32,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,674 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 3587 transitions. [2022-11-18 20:52:32,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 20:52:32,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:32,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:32,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 20:52:32,691 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:32,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:32,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1130610836, now seen corresponding path program 1 times [2022-11-18 20:52:32,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:32,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145364675] [2022-11-18 20:52:32,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:32,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:32,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:32,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:32,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145364675] [2022-11-18 20:52:32,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145364675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:32,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:32,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:32,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92895332] [2022-11-18 20:52:32,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:32,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:32,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:32,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:32,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:32,732 INFO L87 Difference]: Start difference. First operand 2309 states and 3587 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:32,763 INFO L93 Difference]: Finished difference Result 4103 states and 6436 transitions. [2022-11-18 20:52:32,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:32,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2022-11-18 20:52:32,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:32,776 INFO L225 Difference]: With dead ends: 4103 [2022-11-18 20:52:32,776 INFO L226 Difference]: Without dead ends: 4103 [2022-11-18 20:52:32,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:32,778 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 40 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:32,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 139 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:32,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4103 states. [2022-11-18 20:52:32,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4103 to 3333. [2022-11-18 20:52:32,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3333 states, 3332 states have (on average 1.508703481392557) internal successors, (5027), 3332 states have internal predecessors, (5027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3333 states to 3333 states and 5027 transitions. [2022-11-18 20:52:32,867 INFO L78 Accepts]: Start accepts. Automaton has 3333 states and 5027 transitions. Word has length 25 [2022-11-18 20:52:32,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:32,867 INFO L495 AbstractCegarLoop]: Abstraction has 3333 states and 5027 transitions. [2022-11-18 20:52:32,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3333 states and 5027 transitions. [2022-11-18 20:52:32,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 20:52:32,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:32,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:32,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 20:52:32,873 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:32,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:32,874 INFO L85 PathProgramCache]: Analyzing trace with hash -149252842, now seen corresponding path program 1 times [2022-11-18 20:52:32,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:32,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030637654] [2022-11-18 20:52:32,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:32,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:32,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:32,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:32,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030637654] [2022-11-18 20:52:32,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030637654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:32,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:32,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:32,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015757186] [2022-11-18 20:52:32,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:32,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:32,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:32,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:32,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:32,912 INFO L87 Difference]: Start difference. First operand 3333 states and 5027 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:32,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:32,942 INFO L93 Difference]: Finished difference Result 4487 states and 6724 transitions. [2022-11-18 20:52:32,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:32,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2022-11-18 20:52:32,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:32,957 INFO L225 Difference]: With dead ends: 4487 [2022-11-18 20:52:32,957 INFO L226 Difference]: Without dead ends: 4487 [2022-11-18 20:52:32,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:32,960 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 52 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:32,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 177 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:32,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4487 states. [2022-11-18 20:52:33,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4487 to 4485. [2022-11-18 20:52:33,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4485 states, 4484 states have (on average 1.4993309545049063) internal successors, (6723), 4484 states have internal predecessors, (6723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:33,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4485 states to 4485 states and 6723 transitions. [2022-11-18 20:52:33,081 INFO L78 Accepts]: Start accepts. Automaton has 4485 states and 6723 transitions. Word has length 25 [2022-11-18 20:52:33,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:33,082 INFO L495 AbstractCegarLoop]: Abstraction has 4485 states and 6723 transitions. [2022-11-18 20:52:33,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:33,083 INFO L276 IsEmpty]: Start isEmpty. Operand 4485 states and 6723 transitions. [2022-11-18 20:52:33,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 20:52:33,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:33,089 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] [2022-11-18 20:52:33,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 20:52:33,090 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:33,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:33,091 INFO L85 PathProgramCache]: Analyzing trace with hash 689412294, now seen corresponding path program 1 times [2022-11-18 20:52:33,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:33,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069093521] [2022-11-18 20:52:33,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:33,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:33,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:33,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:33,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069093521] [2022-11-18 20:52:33,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069093521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:33,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:33,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:33,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901407878] [2022-11-18 20:52:33,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:33,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:33,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:33,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:33,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:33,132 INFO L87 Difference]: Start difference. First operand 4485 states and 6723 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:33,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:33,171 INFO L93 Difference]: Finished difference Result 4551 states and 6724 transitions. [2022-11-18 20:52:33,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:33,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2022-11-18 20:52:33,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:33,206 INFO L225 Difference]: With dead ends: 4551 [2022-11-18 20:52:33,206 INFO L226 Difference]: Without dead ends: 4551 [2022-11-18 20:52:33,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:33,207 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 54 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:33,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 168 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:33,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4551 states. [2022-11-18 20:52:33,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4551 to 4549. [2022-11-18 20:52:33,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4549 states, 4548 states have (on average 1.4782321899736148) internal successors, (6723), 4548 states have internal predecessors, (6723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:33,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4549 states to 4549 states and 6723 transitions. [2022-11-18 20:52:33,312 INFO L78 Accepts]: Start accepts. Automaton has 4549 states and 6723 transitions. Word has length 26 [2022-11-18 20:52:33,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:33,312 INFO L495 AbstractCegarLoop]: Abstraction has 4549 states and 6723 transitions. [2022-11-18 20:52:33,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:33,313 INFO L276 IsEmpty]: Start isEmpty. Operand 4549 states and 6723 transitions. [2022-11-18 20:52:33,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 20:52:33,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:33,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:33,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 20:52:33,319 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:33,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:33,320 INFO L85 PathProgramCache]: Analyzing trace with hash -331656060, now seen corresponding path program 1 times [2022-11-18 20:52:33,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:33,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972479168] [2022-11-18 20:52:33,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:33,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:33,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:33,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:33,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972479168] [2022-11-18 20:52:33,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972479168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:33,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:33,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:33,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507500920] [2022-11-18 20:52:33,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:33,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:33,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:33,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:33,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:33,353 INFO L87 Difference]: Start difference. First operand 4549 states and 6723 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:33,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:33,388 INFO L93 Difference]: Finished difference Result 7943 states and 11844 transitions. [2022-11-18 20:52:33,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:33,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2022-11-18 20:52:33,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:33,405 INFO L225 Difference]: With dead ends: 7943 [2022-11-18 20:52:33,405 INFO L226 Difference]: Without dead ends: 7943 [2022-11-18 20:52:33,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:33,406 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 37 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:33,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 137 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:33,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7943 states. [2022-11-18 20:52:33,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7943 to 6661. [2022-11-18 20:52:33,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6661 states, 6660 states have (on average 1.4322822822822823) internal successors, (9539), 6660 states have internal predecessors, (9539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:33,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6661 states to 6661 states and 9539 transitions. [2022-11-18 20:52:33,600 INFO L78 Accepts]: Start accepts. Automaton has 6661 states and 9539 transitions. Word has length 26 [2022-11-18 20:52:33,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:33,600 INFO L495 AbstractCegarLoop]: Abstraction has 6661 states and 9539 transitions. [2022-11-18 20:52:33,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:33,601 INFO L276 IsEmpty]: Start isEmpty. Operand 6661 states and 9539 transitions. [2022-11-18 20:52:33,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 20:52:33,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:33,609 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] [2022-11-18 20:52:33,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-18 20:52:33,609 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:33,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:33,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1611519738, now seen corresponding path program 1 times [2022-11-18 20:52:33,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:33,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501184320] [2022-11-18 20:52:33,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:33,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:33,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:33,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:33,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501184320] [2022-11-18 20:52:33,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501184320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:33,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:33,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:33,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989557346] [2022-11-18 20:52:33,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:33,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:33,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:33,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:33,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:33,638 INFO L87 Difference]: Start difference. First operand 6661 states and 9539 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:33,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:33,674 INFO L93 Difference]: Finished difference Result 8839 states and 12548 transitions. [2022-11-18 20:52:33,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:33,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2022-11-18 20:52:33,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:33,689 INFO L225 Difference]: With dead ends: 8839 [2022-11-18 20:52:33,690 INFO L226 Difference]: Without dead ends: 8839 [2022-11-18 20:52:33,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:33,691 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 51 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:33,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 178 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:33,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8839 states. [2022-11-18 20:52:33,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8839 to 8837. [2022-11-18 20:52:33,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8837 states, 8836 states have (on average 1.4199864191942055) internal successors, (12547), 8836 states have internal predecessors, (12547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:33,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8837 states to 8837 states and 12547 transitions. [2022-11-18 20:52:33,882 INFO L78 Accepts]: Start accepts. Automaton has 8837 states and 12547 transitions. Word has length 26 [2022-11-18 20:52:33,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:33,882 INFO L495 AbstractCegarLoop]: Abstraction has 8837 states and 12547 transitions. [2022-11-18 20:52:33,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:33,883 INFO L276 IsEmpty]: Start isEmpty. Operand 8837 states and 12547 transitions. [2022-11-18 20:52:33,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 20:52:33,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:33,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:33,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-18 20:52:33,894 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:33,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:33,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1691188181, now seen corresponding path program 1 times [2022-11-18 20:52:33,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:33,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892871014] [2022-11-18 20:52:33,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:33,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:33,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:33,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:33,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892871014] [2022-11-18 20:52:33,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892871014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:33,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:33,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:33,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260917186] [2022-11-18 20:52:33,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:33,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:33,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:33,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:33,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:33,966 INFO L87 Difference]: Start difference. First operand 8837 states and 12547 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:34,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:34,005 INFO L93 Difference]: Finished difference Result 8967 states and 12548 transitions. [2022-11-18 20:52:34,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:34,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2022-11-18 20:52:34,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:34,025 INFO L225 Difference]: With dead ends: 8967 [2022-11-18 20:52:34,026 INFO L226 Difference]: Without dead ends: 8967 [2022-11-18 20:52:34,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:34,027 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 53 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:34,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 164 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:34,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8967 states. [2022-11-18 20:52:34,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8967 to 8965. [2022-11-18 20:52:34,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8965 states, 8964 states have (on average 1.3997099509147701) internal successors, (12547), 8964 states have internal predecessors, (12547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:34,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8965 states to 8965 states and 12547 transitions. [2022-11-18 20:52:34,312 INFO L78 Accepts]: Start accepts. Automaton has 8965 states and 12547 transitions. Word has length 27 [2022-11-18 20:52:34,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:34,313 INFO L495 AbstractCegarLoop]: Abstraction has 8965 states and 12547 transitions. [2022-11-18 20:52:34,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:34,313 INFO L276 IsEmpty]: Start isEmpty. Operand 8965 states and 12547 transitions. [2022-11-18 20:52:34,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 20:52:34,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:34,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:34,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-18 20:52:34,357 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:34,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:34,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1582710761, now seen corresponding path program 1 times [2022-11-18 20:52:34,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:34,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761410894] [2022-11-18 20:52:34,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:34,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:34,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:34,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:34,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761410894] [2022-11-18 20:52:34,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761410894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:34,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:34,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:34,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685947703] [2022-11-18 20:52:34,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:34,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:34,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:34,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:34,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:34,394 INFO L87 Difference]: Start difference. First operand 8965 states and 12547 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:34,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:34,472 INFO L93 Difference]: Finished difference Result 15367 states and 21636 transitions. [2022-11-18 20:52:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:34,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2022-11-18 20:52:34,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:34,508 INFO L225 Difference]: With dead ends: 15367 [2022-11-18 20:52:34,508 INFO L226 Difference]: Without dead ends: 15367 [2022-11-18 20:52:34,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:34,509 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 34 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:34,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 135 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:34,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15367 states. [2022-11-18 20:52:34,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15367 to 13317. [2022-11-18 20:52:34,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13317 states, 13316 states have (on average 1.3555872634424753) internal successors, (18051), 13316 states have internal predecessors, (18051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:34,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13317 states to 13317 states and 18051 transitions. [2022-11-18 20:52:34,847 INFO L78 Accepts]: Start accepts. Automaton has 13317 states and 18051 transitions. Word has length 27 [2022-11-18 20:52:34,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:34,848 INFO L495 AbstractCegarLoop]: Abstraction has 13317 states and 18051 transitions. [2022-11-18 20:52:34,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:34,848 INFO L276 IsEmpty]: Start isEmpty. Operand 13317 states and 18051 transitions. [2022-11-18 20:52:34,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 20:52:34,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:34,918 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] [2022-11-18 20:52:34,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-18 20:52:34,919 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:34,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:34,921 INFO L85 PathProgramCache]: Analyzing trace with hash 302847083, now seen corresponding path program 1 times [2022-11-18 20:52:34,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:34,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581704796] [2022-11-18 20:52:34,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:34,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:34,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:34,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:34,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581704796] [2022-11-18 20:52:34,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581704796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:34,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:34,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:34,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867732171] [2022-11-18 20:52:34,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:34,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:34,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:34,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:34,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:34,966 INFO L87 Difference]: Start difference. First operand 13317 states and 18051 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:35,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:35,031 INFO L93 Difference]: Finished difference Result 17415 states and 23300 transitions. [2022-11-18 20:52:35,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:35,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2022-11-18 20:52:35,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:35,067 INFO L225 Difference]: With dead ends: 17415 [2022-11-18 20:52:35,067 INFO L226 Difference]: Without dead ends: 17415 [2022-11-18 20:52:35,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:35,069 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 50 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:35,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 179 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:35,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17415 states. [2022-11-18 20:52:35,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17415 to 17413. [2022-11-18 20:52:35,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17413 states, 17412 states have (on average 1.3381001608086378) internal successors, (23299), 17412 states have internal predecessors, (23299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:35,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17413 states to 17413 states and 23299 transitions. [2022-11-18 20:52:35,514 INFO L78 Accepts]: Start accepts. Automaton has 17413 states and 23299 transitions. Word has length 27 [2022-11-18 20:52:35,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:35,515 INFO L495 AbstractCegarLoop]: Abstraction has 17413 states and 23299 transitions. [2022-11-18 20:52:35,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:35,515 INFO L276 IsEmpty]: Start isEmpty. Operand 17413 states and 23299 transitions. [2022-11-18 20:52:35,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 20:52:35,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:35,545 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:35,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-18 20:52:35,545 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:35,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:35,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1819608763, now seen corresponding path program 1 times [2022-11-18 20:52:35,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:35,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5102526] [2022-11-18 20:52:35,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:35,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:35,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:35,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:35,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5102526] [2022-11-18 20:52:35,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5102526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:35,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:35,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:35,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743156132] [2022-11-18 20:52:35,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:35,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:35,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:35,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:35,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:35,603 INFO L87 Difference]: Start difference. First operand 17413 states and 23299 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:35,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:35,698 INFO L93 Difference]: Finished difference Result 17671 states and 23300 transitions. [2022-11-18 20:52:35,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:35,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2022-11-18 20:52:35,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:35,750 INFO L225 Difference]: With dead ends: 17671 [2022-11-18 20:52:35,751 INFO L226 Difference]: Without dead ends: 17671 [2022-11-18 20:52:35,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:35,752 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 52 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:35,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 160 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:35,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17671 states. [2022-11-18 20:52:36,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17671 to 17669. [2022-11-18 20:52:36,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17669 states, 17668 states have (on average 1.318711795336201) internal successors, (23299), 17668 states have internal predecessors, (23299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:36,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17669 states to 17669 states and 23299 transitions. [2022-11-18 20:52:36,250 INFO L78 Accepts]: Start accepts. Automaton has 17669 states and 23299 transitions. Word has length 28 [2022-11-18 20:52:36,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:36,251 INFO L495 AbstractCegarLoop]: Abstraction has 17669 states and 23299 transitions. [2022-11-18 20:52:36,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:36,251 INFO L276 IsEmpty]: Start isEmpty. Operand 17669 states and 23299 transitions. [2022-11-18 20:52:36,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 20:52:36,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:36,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:36,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-18 20:52:36,269 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:36,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:36,270 INFO L85 PathProgramCache]: Analyzing trace with hash 798540409, now seen corresponding path program 1 times [2022-11-18 20:52:36,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:36,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085439534] [2022-11-18 20:52:36,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:36,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:36,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:36,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:36,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085439534] [2022-11-18 20:52:36,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085439534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:36,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:36,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:36,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000129774] [2022-11-18 20:52:36,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:36,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:36,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:36,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:36,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:36,304 INFO L87 Difference]: Start difference. First operand 17669 states and 23299 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:36,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:36,537 INFO L93 Difference]: Finished difference Result 29703 states and 39172 transitions. [2022-11-18 20:52:36,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:36,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2022-11-18 20:52:36,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:36,587 INFO L225 Difference]: With dead ends: 29703 [2022-11-18 20:52:36,588 INFO L226 Difference]: Without dead ends: 29703 [2022-11-18 20:52:36,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:36,589 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 31 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:36,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 133 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:36,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29703 states. [2022-11-18 20:52:37,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29703 to 26629. [2022-11-18 20:52:37,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26629 states, 26628 states have (on average 1.2787667117320114) internal successors, (34051), 26628 states have internal predecessors, (34051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:37,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26629 states to 26629 states and 34051 transitions. [2022-11-18 20:52:37,159 INFO L78 Accepts]: Start accepts. Automaton has 26629 states and 34051 transitions. Word has length 28 [2022-11-18 20:52:37,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:37,159 INFO L495 AbstractCegarLoop]: Abstraction has 26629 states and 34051 transitions. [2022-11-18 20:52:37,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:37,160 INFO L276 IsEmpty]: Start isEmpty. Operand 26629 states and 34051 transitions. [2022-11-18 20:52:37,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 20:52:37,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:37,192 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:37,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-18 20:52:37,192 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:37,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:37,194 INFO L85 PathProgramCache]: Analyzing trace with hash -481323269, now seen corresponding path program 1 times [2022-11-18 20:52:37,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:37,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652639375] [2022-11-18 20:52:37,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:37,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:37,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:37,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:37,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652639375] [2022-11-18 20:52:37,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652639375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:37,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:37,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:37,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909628181] [2022-11-18 20:52:37,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:37,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:37,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:37,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:37,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:37,229 INFO L87 Difference]: Start difference. First operand 26629 states and 34051 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:37,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:37,559 INFO L93 Difference]: Finished difference Result 34311 states and 43012 transitions. [2022-11-18 20:52:37,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:37,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2022-11-18 20:52:37,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:37,649 INFO L225 Difference]: With dead ends: 34311 [2022-11-18 20:52:37,650 INFO L226 Difference]: Without dead ends: 34311 [2022-11-18 20:52:37,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:37,651 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 49 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:37,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 180 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:37,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34311 states. [2022-11-18 20:52:38,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34311 to 34309. [2022-11-18 20:52:38,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34309 states, 34308 states have (on average 1.2536726128016789) internal successors, (43011), 34308 states have internal predecessors, (43011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:38,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34309 states to 34309 states and 43011 transitions. [2022-11-18 20:52:38,469 INFO L78 Accepts]: Start accepts. Automaton has 34309 states and 43011 transitions. Word has length 28 [2022-11-18 20:52:38,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:38,469 INFO L495 AbstractCegarLoop]: Abstraction has 34309 states and 43011 transitions. [2022-11-18 20:52:38,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:38,470 INFO L276 IsEmpty]: Start isEmpty. Operand 34309 states and 43011 transitions. [2022-11-18 20:52:38,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 20:52:38,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:38,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:38,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-18 20:52:38,506 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:38,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:38,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1014835328, now seen corresponding path program 1 times [2022-11-18 20:52:38,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:38,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495315475] [2022-11-18 20:52:38,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:38,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:38,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:38,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:38,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495315475] [2022-11-18 20:52:38,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495315475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:38,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:38,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:38,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525077157] [2022-11-18 20:52:38,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:38,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:38,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:38,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:38,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:38,548 INFO L87 Difference]: Start difference. First operand 34309 states and 43011 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:38,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:38,710 INFO L93 Difference]: Finished difference Result 34823 states and 43012 transitions. [2022-11-18 20:52:38,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:38,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2022-11-18 20:52:38,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:38,770 INFO L225 Difference]: With dead ends: 34823 [2022-11-18 20:52:38,770 INFO L226 Difference]: Without dead ends: 34823 [2022-11-18 20:52:38,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:38,772 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 51 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:38,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 156 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:38,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34823 states. [2022-11-18 20:52:39,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34823 to 34821. [2022-11-18 20:52:39,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34821 states, 34820 states have (on average 1.23523836875359) internal successors, (43011), 34820 states have internal predecessors, (43011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:39,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34821 states to 34821 states and 43011 transitions. [2022-11-18 20:52:39,633 INFO L78 Accepts]: Start accepts. Automaton has 34821 states and 43011 transitions. Word has length 29 [2022-11-18 20:52:39,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:39,633 INFO L495 AbstractCegarLoop]: Abstraction has 34821 states and 43011 transitions. [2022-11-18 20:52:39,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:39,634 INFO L276 IsEmpty]: Start isEmpty. Operand 34821 states and 43011 transitions. [2022-11-18 20:52:39,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 20:52:39,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:39,657 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] [2022-11-18 20:52:39,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-18 20:52:39,658 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:39,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:39,659 INFO L85 PathProgramCache]: Analyzing trace with hash -2035903682, now seen corresponding path program 1 times [2022-11-18 20:52:39,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:39,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323542994] [2022-11-18 20:52:39,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:39,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:39,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:39,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:39,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323542994] [2022-11-18 20:52:39,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323542994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:39,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:39,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:39,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442816767] [2022-11-18 20:52:39,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:39,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:39,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:39,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:39,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:39,690 INFO L87 Difference]: Start difference. First operand 34821 states and 43011 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:39,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:39,866 INFO L93 Difference]: Finished difference Result 67591 states and 79876 transitions. [2022-11-18 20:52:39,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:39,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2022-11-18 20:52:39,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:39,957 INFO L225 Difference]: With dead ends: 67591 [2022-11-18 20:52:39,958 INFO L226 Difference]: Without dead ends: 67591 [2022-11-18 20:52:39,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:39,960 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 49 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:39,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 151 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:40,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67591 states. [2022-11-18 20:52:41,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67591 to 67589. [2022-11-18 20:52:41,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67589 states, 67588 states have (on average 1.1817926259099247) internal successors, (79875), 67588 states have internal predecessors, (79875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:41,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67589 states to 67589 states and 79875 transitions. [2022-11-18 20:52:41,442 INFO L78 Accepts]: Start accepts. Automaton has 67589 states and 79875 transitions. Word has length 29 [2022-11-18 20:52:41,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:41,442 INFO L495 AbstractCegarLoop]: Abstraction has 67589 states and 79875 transitions. [2022-11-18 20:52:41,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:41,443 INFO L276 IsEmpty]: Start isEmpty. Operand 67589 states and 79875 transitions. [2022-11-18 20:52:41,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 20:52:41,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:41,489 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:41,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-18 20:52:41,491 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:41,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:41,491 INFO L85 PathProgramCache]: Analyzing trace with hash -756040004, now seen corresponding path program 1 times [2022-11-18 20:52:41,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:41,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792943713] [2022-11-18 20:52:41,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:41,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:41,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:41,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:41,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792943713] [2022-11-18 20:52:41,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792943713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:41,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:41,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:41,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527999919] [2022-11-18 20:52:41,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:41,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:41,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:41,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:41,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:41,548 INFO L87 Difference]: Start difference. First operand 67589 states and 79875 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:41,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:41,753 INFO L93 Difference]: Finished difference Result 71687 states and 84996 transitions. [2022-11-18 20:52:41,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:41,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2022-11-18 20:52:41,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:41,851 INFO L225 Difference]: With dead ends: 71687 [2022-11-18 20:52:41,851 INFO L226 Difference]: Without dead ends: 71687 [2022-11-18 20:52:41,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:41,852 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 28 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:41,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 166 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:41,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71687 states. [2022-11-18 20:52:43,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71687 to 67589. [2022-11-18 20:52:43,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67589 states, 67588 states have (on average 1.166642007456945) internal successors, (78851), 67588 states have internal predecessors, (78851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:43,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67589 states to 67589 states and 78851 transitions. [2022-11-18 20:52:43,404 INFO L78 Accepts]: Start accepts. Automaton has 67589 states and 78851 transitions. Word has length 29 [2022-11-18 20:52:43,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:43,405 INFO L495 AbstractCegarLoop]: Abstraction has 67589 states and 78851 transitions. [2022-11-18 20:52:43,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:43,405 INFO L276 IsEmpty]: Start isEmpty. Operand 67589 states and 78851 transitions. [2022-11-18 20:52:43,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-18 20:52:43,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:43,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:43,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-18 20:52:43,481 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:43,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:43,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1311711408, now seen corresponding path program 1 times [2022-11-18 20:52:43,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:43,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743026638] [2022-11-18 20:52:43,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:43,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:43,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:43,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:43,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743026638] [2022-11-18 20:52:43,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743026638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:43,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:43,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:43,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48248251] [2022-11-18 20:52:43,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:43,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:43,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:43,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:43,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:43,517 INFO L87 Difference]: Start difference. First operand 67589 states and 78851 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:44,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:44,307 INFO L93 Difference]: Finished difference Result 109573 states and 124931 transitions. [2022-11-18 20:52:44,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:44,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2022-11-18 20:52:44,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:44,459 INFO L225 Difference]: With dead ends: 109573 [2022-11-18 20:52:44,459 INFO L226 Difference]: Without dead ends: 109573 [2022-11-18 20:52:44,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:44,460 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 24 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:44,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 128 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:44,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109573 states. [2022-11-18 20:52:45,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109573 to 105477. [2022-11-18 20:52:45,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105477 states, 105476 states have (on average 1.1456160643179492) internal successors, (120835), 105476 states have internal predecessors, (120835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:45,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105477 states to 105477 states and 120835 transitions. [2022-11-18 20:52:45,938 INFO L78 Accepts]: Start accepts. Automaton has 105477 states and 120835 transitions. Word has length 30 [2022-11-18 20:52:45,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:45,938 INFO L495 AbstractCegarLoop]: Abstraction has 105477 states and 120835 transitions. [2022-11-18 20:52:45,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:45,938 INFO L276 IsEmpty]: Start isEmpty. Operand 105477 states and 120835 transitions. [2022-11-18 20:52:46,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-18 20:52:46,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:52:46,024 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] [2022-11-18 20:52:46,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-18 20:52:46,025 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-18 20:52:46,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:52:46,026 INFO L85 PathProgramCache]: Analyzing trace with hash 31847730, now seen corresponding path program 1 times [2022-11-18 20:52:46,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:52:46,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010295810] [2022-11-18 20:52:46,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:52:46,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:52:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:52:46,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:52:46,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:52:46,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010295810] [2022-11-18 20:52:46,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010295810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:52:46,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:52:46,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:52:46,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836039911] [2022-11-18 20:52:46,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:52:46,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:52:46,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:52:46,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:52:46,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:46,057 INFO L87 Difference]: Start difference. First operand 105477 states and 120835 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:46,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:52:46,992 INFO L93 Difference]: Finished difference Result 132099 states and 145410 transitions. [2022-11-18 20:52:46,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:52:46,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2022-11-18 20:52:46,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:52:46,993 INFO L225 Difference]: With dead ends: 132099 [2022-11-18 20:52:46,993 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:52:46,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:52:46,994 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 46 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:52:46,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 180 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:52:46,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:52:46,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:52:46,995 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) [2022-11-18 20:52:46,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:52:46,997 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2022-11-18 20:52:46,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:52:46,997 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:52:46,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:52:46,997 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:52:46,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:52:47,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-11-18 20:52:47,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-11-18 20:52:47,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-18 20:52:47,006 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:52:47,021 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:52:47,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:52:47 BoogieIcfgContainer [2022-11-18 20:52:47,025 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:52:47,026 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:52:47,026 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:52:47,026 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:52:47,027 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:52:29" (3/4) ... [2022-11-18 20:52:47,032 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:52:47,060 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-18 20:52:47,061 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 20:52:47,061 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 20:52:47,062 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:52:47,162 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:52:47,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:52:47,165 INFO L158 Benchmark]: Toolchain (without parser) took 18632.91ms. Allocated memory was 115.3MB in the beginning and 11.4GB in the end (delta: 11.3GB). Free memory was 78.6MB in the beginning and 10.3GB in the end (delta: -10.2GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2022-11-18 20:52:47,167 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory was 94.9MB in the beginning and 94.8MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:52:47,167 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.79ms. Allocated memory is still 115.3MB. Free memory was 78.4MB in the beginning and 90.5MB in the end (delta: -12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:52:47,172 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.02ms. Allocated memory is still 115.3MB. Free memory was 90.5MB in the beginning and 88.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:52:47,173 INFO L158 Benchmark]: Boogie Preprocessor took 50.98ms. Allocated memory is still 115.3MB. Free memory was 88.9MB in the beginning and 87.4MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:52:47,174 INFO L158 Benchmark]: RCFGBuilder took 600.09ms. Allocated memory is still 115.3MB. Free memory was 87.4MB in the beginning and 71.6MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 20:52:47,174 INFO L158 Benchmark]: TraceAbstraction took 17325.20ms. Allocated memory was 115.3MB in the beginning and 11.4GB in the end (delta: 11.3GB). Free memory was 71.2MB in the beginning and 10.3GB in the end (delta: -10.3GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2022-11-18 20:52:47,174 INFO L158 Benchmark]: Witness Printer took 137.95ms. Allocated memory is still 11.4GB. Free memory was 10.3GB in the beginning and 10.3GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:52:47,175 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory was 94.9MB in the beginning and 94.8MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 436.79ms. Allocated memory is still 115.3MB. Free memory was 78.4MB in the beginning and 90.5MB in the end (delta: -12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.02ms. Allocated memory is still 115.3MB. Free memory was 90.5MB in the beginning and 88.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.98ms. Allocated memory is still 115.3MB. Free memory was 88.9MB in the beginning and 87.4MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 600.09ms. Allocated memory is still 115.3MB. Free memory was 87.4MB in the beginning and 71.6MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 17325.20ms. Allocated memory was 115.3MB in the beginning and 11.4GB in the end (delta: 11.3GB). Free memory was 71.2MB in the beginning and 10.3GB in the end (delta: -10.3GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * Witness Printer took 137.95ms. Allocated memory is still 11.4GB. Free memory was 10.3GB in the beginning and 10.3GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 191]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 6]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 17.2s, OverallIterations: 35, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1699 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1699 mSDsluCounter, 5554 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2170 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 176 IncrementalHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 3384 mSDtfsCounter, 176 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105477occurred in iteration=34, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.5s AutomataMinimizationTime, 35 MinimizatonAttempts, 16418 StatesRemovedByMinimization, 32 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 822 NumberOfCodeBlocks, 822 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 787 ConstructedInterpolants, 0 QuantifiedInterpolants, 1719 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 35 InterpolantComputations, 35 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 20:52:47,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77d04e8d-4642-42f9-9515-1de9a0f4cc1c/bin/uautomizer-TMbwUNV5ro/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