./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e2cb3c9a8570b7ee66b623ed5fd2a1832f018e766f6bb5120cee7430951770d6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:24:51,661 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:24:51,725 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-13 16:24:51,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:24:51,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:24:51,757 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:24:51,758 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:24:51,758 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:24:51,761 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:24:51,761 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:24:51,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:24:51,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:24:51,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:24:51,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:24:51,762 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:24:51,762 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:24:51,762 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:24:51,762 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:24:51,762 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:24:51,762 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:24:51,763 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:24:51,763 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:24:51,763 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 16:24:51,763 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 16:24:51,763 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:24:51,763 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:24:51,763 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 16:24:51,763 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:24:51,763 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:24:51,763 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:24:51,764 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:24:51,764 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:24:51,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:24:51,764 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:24:51,764 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:24:51,764 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:24:51,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:24:51,767 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:24:51,767 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:24:51,767 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:24:51,768 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:24:51,768 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:24:51,768 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:24:51,768 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:24:51,768 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:24:51,769 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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-memcleanup) ) 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 -> e2cb3c9a8570b7ee66b623ed5fd2a1832f018e766f6bb5120cee7430951770d6 [2024-11-13 16:24:52,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:24:52,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:24:52,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:24:52,136 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:24:52,137 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:24:52,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i Unable to find full path for "g++" [2024-11-13 16:24:54,226 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:24:54,747 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:24:54,748 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i [2024-11-13 16:24:54,782 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/data/f56212933/dc917bfe007e49f09a23f588838de923/FLAG6cd459542 [2024-11-13 16:24:54,805 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/data/f56212933/dc917bfe007e49f09a23f588838de923 [2024-11-13 16:24:54,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:24:54,811 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:24:54,813 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:24:54,813 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:24:54,822 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:24:54,823 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:24:54" (1/1) ... [2024-11-13 16:24:54,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ea2d0cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:54, skipping insertion in model container [2024-11-13 16:24:54,824 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:24:54" (1/1) ... [2024-11-13 16:24:54,904 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:24:55,632 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:24:55,665 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:24:55,668 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:24:55,672 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:24:55,678 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:24:55,708 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:24:55,709 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:24:55,711 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:24:55,711 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 16:24:55,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:24:55,728 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:24:55,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:24:56,003 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:24:56,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:56 WrapperNode [2024-11-13 16:24:56,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:24:56,006 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:24:56,007 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:24:56,007 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:24:56,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:56" (1/1) ... [2024-11-13 16:24:56,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:56" (1/1) ... [2024-11-13 16:24:56,207 INFO L138 Inliner]: procedures = 177, calls = 724, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3252 [2024-11-13 16:24:56,207 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:24:56,208 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:24:56,208 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:24:56,208 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:24:56,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:56" (1/1) ... [2024-11-13 16:24:56,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:56" (1/1) ... [2024-11-13 16:24:56,236 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:56" (1/1) ... [2024-11-13 16:24:56,307 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 34, 172]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 4, 42]. [2024-11-13 16:24:56,307 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:56" (1/1) ... [2024-11-13 16:24:56,307 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:56" (1/1) ... [2024-11-13 16:24:56,386 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:56" (1/1) ... [2024-11-13 16:24:56,409 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:56" (1/1) ... [2024-11-13 16:24:56,417 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:56" (1/1) ... [2024-11-13 16:24:56,426 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:56" (1/1) ... [2024-11-13 16:24:56,444 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:24:56,445 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:24:56,445 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:24:56,445 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:24:56,446 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:56" (1/1) ... [2024-11-13 16:24:56,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:24:56,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:24:56,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:24:56,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:24:56,532 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-13 16:24:56,533 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-13 16:24:56,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 16:24:56,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 16:24:56,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 16:24:56,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 16:24:56,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 16:24:56,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 16:24:56,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 16:24:56,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 16:24:56,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-13 16:24:56,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-13 16:24:56,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-13 16:24:56,536 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-13 16:24:56,536 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-13 16:24:56,536 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-13 16:24:56,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 16:24:56,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:24:56,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 16:24:56,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 16:24:56,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 16:24:56,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:24:56,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 16:24:56,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 16:24:56,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 16:24:56,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:24:56,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:24:56,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 16:24:56,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 16:24:56,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:24:56,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:24:56,842 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:24:56,844 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:25:00,867 INFO L? ?]: Removed 799 outVars from TransFormulas that were not future-live. [2024-11-13 16:25:00,868 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:25:00,920 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:25:00,920 INFO L316 CfgBuilder]: Removed 54 assume(true) statements. [2024-11-13 16:25:00,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:25:00 BoogieIcfgContainer [2024-11-13 16:25:00,921 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:25:00,923 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:25:00,923 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:25:00,928 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:25:00,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:24:54" (1/3) ... [2024-11-13 16:25:00,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63104b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:25:00, skipping insertion in model container [2024-11-13 16:25:00,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:56" (2/3) ... [2024-11-13 16:25:00,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63104b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:25:00, skipping insertion in model container [2024-11-13 16:25:00,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:25:00" (3/3) ... [2024-11-13 16:25:00,930 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test9-1.i [2024-11-13 16:25:00,947 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:25:00,948 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SAX_test9-1.i that has 6 procedures, 1383 locations, 1 initial locations, 33 loop locations, and 2 error locations. [2024-11-13 16:25:01,019 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:25:01,032 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@25b64c18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:25:01,032 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 16:25:01,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 1375 states, 864 states have (on average 1.8391203703703705) internal successors, (1589), 1368 states have internal predecessors, (1589), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2024-11-13 16:25:01,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 16:25:01,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:01,049 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:01,049 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:25:01,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:01,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1593594600, now seen corresponding path program 1 times [2024-11-13 16:25:01,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:01,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709880096] [2024-11-13 16:25:01,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:01,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:01,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:25:01,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:01,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709880096] [2024-11-13 16:25:01,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709880096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:01,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:01,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:25:01,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277868527] [2024-11-13 16:25:01,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:01,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 16:25:01,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:01,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 16:25:01,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:25:01,300 INFO L87 Difference]: Start difference. First operand has 1375 states, 864 states have (on average 1.8391203703703705) internal successors, (1589), 1368 states have internal predecessors, (1589), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:25:01,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:01,459 INFO L93 Difference]: Finished difference Result 1373 states and 2536 transitions. [2024-11-13 16:25:01,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 16:25:01,461 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-13 16:25:01,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:01,506 INFO L225 Difference]: With dead ends: 1373 [2024-11-13 16:25:01,506 INFO L226 Difference]: Without dead ends: 1371 [2024-11-13 16:25:01,507 INFO L431 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 [2024-11-13 16:25:01,515 INFO L432 NwaCegarLoop]: 2536 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, 2536 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 [2024-11-13 16:25:01,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2536 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:25:01,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2024-11-13 16:25:02,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1371. [2024-11-13 16:25:02,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1371 states, 862 states have (on average 1.7703016241299303) internal successors, (1526), 1364 states have internal predecessors, (1526), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-13 16:25:02,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 2534 transitions. [2024-11-13 16:25:02,107 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 2534 transitions. Word has length 7 [2024-11-13 16:25:02,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:02,108 INFO L471 AbstractCegarLoop]: Abstraction has 1371 states and 2534 transitions. [2024-11-13 16:25:02,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:25:02,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 2534 transitions. [2024-11-13 16:25:02,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 16:25:02,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:02,109 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:02,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:25:02,109 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:25:02,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:02,110 INFO L85 PathProgramCache]: Analyzing trace with hash -951593346, now seen corresponding path program 1 times [2024-11-13 16:25:02,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:02,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896638254] [2024-11-13 16:25:02,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:02,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:02,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:25:02,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:02,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896638254] [2024-11-13 16:25:02,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896638254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:02,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:02,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:25:02,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80193593] [2024-11-13 16:25:02,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:02,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:25:02,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:02,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:25:02,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:25:02,400 INFO L87 Difference]: Start difference. First operand 1371 states and 2534 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:25:03,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:03,980 INFO L93 Difference]: Finished difference Result 2725 states and 5052 transitions. [2024-11-13 16:25:03,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:25:03,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-13 16:25:03,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:04,012 INFO L225 Difference]: With dead ends: 2725 [2024-11-13 16:25:04,012 INFO L226 Difference]: Without dead ends: 2725 [2024-11-13 16:25:04,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:25:04,016 INFO L432 NwaCegarLoop]: 2623 mSDtfsCounter, 1508 mSDsluCounter, 4630 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2011 SdHoareTripleChecker+Valid, 7253 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:04,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2011 Valid, 7253 Invalid, 566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 16:25:04,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2725 states. [2024-11-13 16:25:04,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2725 to 1373. [2024-11-13 16:25:04,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1373 states, 864 states have (on average 1.7685185185185186) internal successors, (1528), 1366 states have internal predecessors, (1528), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-13 16:25:04,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 2536 transitions. [2024-11-13 16:25:04,833 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 2536 transitions. Word has length 9 [2024-11-13 16:25:04,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:04,834 INFO L471 AbstractCegarLoop]: Abstraction has 1373 states and 2536 transitions. [2024-11-13 16:25:04,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:25:04,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 2536 transitions. [2024-11-13 16:25:04,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-13 16:25:04,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:04,839 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:04,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:25:04,840 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:25:04,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:04,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1446961724, now seen corresponding path program 1 times [2024-11-13 16:25:04,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:04,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017620738] [2024-11-13 16:25:04,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:04,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:05,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:25:05,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:05,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017620738] [2024-11-13 16:25:05,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017620738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:05,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:05,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:25:05,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43072222] [2024-11-13 16:25:05,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:05,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:25:05,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:05,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:25:05,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:25:05,531 INFO L87 Difference]: Start difference. First operand 1373 states and 2536 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 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) [2024-11-13 16:25:05,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:05,719 INFO L93 Difference]: Finished difference Result 1331 states and 2459 transitions. [2024-11-13 16:25:05,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:25:05,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 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) Word has length 85 [2024-11-13 16:25:05,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:05,729 INFO L225 Difference]: With dead ends: 1331 [2024-11-13 16:25:05,729 INFO L226 Difference]: Without dead ends: 1331 [2024-11-13 16:25:05,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:25:05,732 INFO L432 NwaCegarLoop]: 2432 mSDtfsCounter, 30 mSDsluCounter, 4845 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 7277 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:05,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 7277 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:25:05,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2024-11-13 16:25:05,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1331. [2024-11-13 16:25:05,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1331 states, 822 states have (on average 1.7652068126520681) internal successors, (1451), 1324 states have internal predecessors, (1451), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-13 16:25:06,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 2459 transitions. [2024-11-13 16:25:06,011 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 2459 transitions. Word has length 85 [2024-11-13 16:25:06,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:06,015 INFO L471 AbstractCegarLoop]: Abstraction has 1331 states and 2459 transitions. [2024-11-13 16:25:06,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 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) [2024-11-13 16:25:06,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 2459 transitions. [2024-11-13 16:25:06,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-13 16:25:06,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:06,018 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:06,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:25:06,019 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:25:06,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:06,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1968102600, now seen corresponding path program 1 times [2024-11-13 16:25:06,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:06,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321348087] [2024-11-13 16:25:06,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:06,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:06,413 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:25:06,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:06,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321348087] [2024-11-13 16:25:06,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321348087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:06,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:06,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:25:06,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312764138] [2024-11-13 16:25:06,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:06,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:25:06,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:06,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:25:06,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:25:06,419 INFO L87 Difference]: Start difference. First operand 1331 states and 2459 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 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) [2024-11-13 16:25:06,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:06,601 INFO L93 Difference]: Finished difference Result 2558 states and 4784 transitions. [2024-11-13 16:25:06,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:25:06,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 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) Word has length 85 [2024-11-13 16:25:06,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:06,623 INFO L225 Difference]: With dead ends: 2558 [2024-11-13 16:25:06,623 INFO L226 Difference]: Without dead ends: 2558 [2024-11-13 16:25:06,623 INFO L431 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 [2024-11-13 16:25:06,624 INFO L432 NwaCegarLoop]: 2658 mSDtfsCounter, 1263 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1763 SdHoareTripleChecker+Valid, 5095 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:06,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1763 Valid, 5095 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:25:06,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2024-11-13 16:25:07,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 2554. [2024-11-13 16:25:07,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2554 states, 1545 states have (on average 1.794822006472492) internal successors, (2773), 2547 states have internal predecessors, (2773), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 16:25:07,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2554 states to 2554 states and 4781 transitions. [2024-11-13 16:25:07,083 INFO L78 Accepts]: Start accepts. Automaton has 2554 states and 4781 transitions. Word has length 85 [2024-11-13 16:25:07,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:07,085 INFO L471 AbstractCegarLoop]: Abstraction has 2554 states and 4781 transitions. [2024-11-13 16:25:07,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 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) [2024-11-13 16:25:07,086 INFO L276 IsEmpty]: Start isEmpty. Operand 2554 states and 4781 transitions. [2024-11-13 16:25:07,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-13 16:25:07,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:07,092 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:07,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 16:25:07,092 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:25:07,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:07,092 INFO L85 PathProgramCache]: Analyzing trace with hash -54256104, now seen corresponding path program 1 times [2024-11-13 16:25:07,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:07,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320560173] [2024-11-13 16:25:07,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:07,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:07,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:25:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:07,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:25:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:07,826 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 16:25:07,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:07,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320560173] [2024-11-13 16:25:07,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320560173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:07,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:07,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:25:07,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586236864] [2024-11-13 16:25:07,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:07,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:25:07,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:07,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:25:07,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:25:07,830 INFO L87 Difference]: Start difference. First operand 2554 states and 4781 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:25:14,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:14,986 INFO L93 Difference]: Finished difference Result 4784 states and 9114 transitions. [2024-11-13 16:25:14,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:25:14,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 100 [2024-11-13 16:25:14,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:15,018 INFO L225 Difference]: With dead ends: 4784 [2024-11-13 16:25:15,018 INFO L226 Difference]: Without dead ends: 4784 [2024-11-13 16:25:15,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:25:15,020 INFO L432 NwaCegarLoop]: 2555 mSDtfsCounter, 1431 mSDsluCounter, 4710 mSDsCounter, 0 mSdLazyCounter, 2418 mSolverCounterSat, 1005 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1937 SdHoareTripleChecker+Valid, 7265 SdHoareTripleChecker+Invalid, 3423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1005 IncrementalHoareTripleChecker+Valid, 2418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:15,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1937 Valid, 7265 Invalid, 3423 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1005 Valid, 2418 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2024-11-13 16:25:15,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4784 states. [2024-11-13 16:25:15,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4784 to 2556. [2024-11-13 16:25:15,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2556 states, 1547 states have (on average 1.7937944408532644) internal successors, (2775), 2549 states have internal predecessors, (2775), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 16:25:15,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2556 states to 2556 states and 4783 transitions. [2024-11-13 16:25:15,598 INFO L78 Accepts]: Start accepts. Automaton has 2556 states and 4783 transitions. Word has length 100 [2024-11-13 16:25:15,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:15,600 INFO L471 AbstractCegarLoop]: Abstraction has 2556 states and 4783 transitions. [2024-11-13 16:25:15,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:25:15,600 INFO L276 IsEmpty]: Start isEmpty. Operand 2556 states and 4783 transitions. [2024-11-13 16:25:15,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-13 16:25:15,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:15,604 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:15,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 16:25:15,605 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:25:15,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:15,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1672713286, now seen corresponding path program 1 times [2024-11-13 16:25:15,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:15,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535601600] [2024-11-13 16:25:15,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:15,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:16,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:25:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:16,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:25:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:16,119 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 16:25:16,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:16,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535601600] [2024-11-13 16:25:16,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535601600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:16,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:16,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:25:16,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441786714] [2024-11-13 16:25:16,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:16,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:25:16,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:16,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:25:16,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:25:16,125 INFO L87 Difference]: Start difference. First operand 2556 states and 4783 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:25:19,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:19,165 INFO L93 Difference]: Finished difference Result 2565 states and 4781 transitions. [2024-11-13 16:25:19,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:25:19,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 157 [2024-11-13 16:25:19,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:19,180 INFO L225 Difference]: With dead ends: 2565 [2024-11-13 16:25:19,181 INFO L226 Difference]: Without dead ends: 2565 [2024-11-13 16:25:19,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:25:19,182 INFO L432 NwaCegarLoop]: 2415 mSDtfsCounter, 115 mSDsluCounter, 5097 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 7512 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:19,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 7512 Invalid, 2158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [518 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 16:25:19,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2024-11-13 16:25:19,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 2556. [2024-11-13 16:25:19,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2556 states, 1547 states have (on average 1.7847446670976084) internal successors, (2761), 2549 states have internal predecessors, (2761), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 16:25:19,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2556 states to 2556 states and 4769 transitions. [2024-11-13 16:25:19,581 INFO L78 Accepts]: Start accepts. Automaton has 2556 states and 4769 transitions. Word has length 157 [2024-11-13 16:25:19,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:19,582 INFO L471 AbstractCegarLoop]: Abstraction has 2556 states and 4769 transitions. [2024-11-13 16:25:19,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:25:19,582 INFO L276 IsEmpty]: Start isEmpty. Operand 2556 states and 4769 transitions. [2024-11-13 16:25:19,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-13 16:25:19,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:19,586 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:19,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 16:25:19,586 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:25:19,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:19,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1858298426, now seen corresponding path program 1 times [2024-11-13 16:25:19,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:19,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381777471] [2024-11-13 16:25:19,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:19,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:19,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:25:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:19,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:25:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:19,932 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 16:25:19,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:19,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381777471] [2024-11-13 16:25:19,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381777471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:19,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:19,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:25:19,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061426436] [2024-11-13 16:25:19,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:19,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:25:19,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:19,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:25:19,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:25:19,936 INFO L87 Difference]: Start difference. First operand 2556 states and 4769 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:25:22,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:22,720 INFO L93 Difference]: Finished difference Result 2571 states and 4787 transitions. [2024-11-13 16:25:22,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:25:22,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 157 [2024-11-13 16:25:22,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:22,734 INFO L225 Difference]: With dead ends: 2571 [2024-11-13 16:25:22,735 INFO L226 Difference]: Without dead ends: 2571 [2024-11-13 16:25:22,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:25:22,736 INFO L432 NwaCegarLoop]: 2430 mSDtfsCounter, 11 mSDsluCounter, 3283 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 508 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 5713 SdHoareTripleChecker+Invalid, 1612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:22,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 5713 Invalid, 1612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [508 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-13 16:25:22,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2024-11-13 16:25:23,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2568. [2024-11-13 16:25:23,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2568 states, 1559 states have (on average 1.7787042976266838) internal successors, (2773), 2561 states have internal predecessors, (2773), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 16:25:23,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2568 states to 2568 states and 4781 transitions. [2024-11-13 16:25:23,048 INFO L78 Accepts]: Start accepts. Automaton has 2568 states and 4781 transitions. Word has length 157 [2024-11-13 16:25:23,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:23,048 INFO L471 AbstractCegarLoop]: Abstraction has 2568 states and 4781 transitions. [2024-11-13 16:25:23,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:25:23,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2568 states and 4781 transitions. [2024-11-13 16:25:23,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-13 16:25:23,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:23,051 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:23,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 16:25:23,051 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:25:23,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:23,053 INFO L85 PathProgramCache]: Analyzing trace with hash -2042302084, now seen corresponding path program 1 times [2024-11-13 16:25:23,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:23,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995947992] [2024-11-13 16:25:23,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:23,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:23,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:25:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:23,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:25:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:23,478 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:25:23,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:23,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995947992] [2024-11-13 16:25:23,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995947992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:23,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:23,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 16:25:23,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722901079] [2024-11-13 16:25:23,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:23,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:25:23,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:23,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:25:23,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:25:23,483 INFO L87 Difference]: Start difference. First operand 2568 states and 4781 transitions. Second operand has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 5 states have internal predecessors, (149), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:25:29,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:29,587 INFO L93 Difference]: Finished difference Result 2654 states and 4895 transitions. [2024-11-13 16:25:29,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:25:29,588 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 5 states have internal predecessors, (149), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 157 [2024-11-13 16:25:29,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:29,602 INFO L225 Difference]: With dead ends: 2654 [2024-11-13 16:25:29,602 INFO L226 Difference]: Without dead ends: 2654 [2024-11-13 16:25:29,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:25:29,603 INFO L432 NwaCegarLoop]: 2615 mSDtfsCounter, 6448 mSDsluCounter, 4019 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 2855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6950 SdHoareTripleChecker+Valid, 6634 SdHoareTripleChecker+Invalid, 4134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2855 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:29,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6950 Valid, 6634 Invalid, 4134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2855 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-13 16:25:29,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2654 states. [2024-11-13 16:25:29,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2654 to 1426. [2024-11-13 16:25:29,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 917 states have (on average 1.7099236641221374) internal successors, (1568), 1419 states have internal predecessors, (1568), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-13 16:25:29,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2576 transitions. [2024-11-13 16:25:29,831 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2576 transitions. Word has length 157 [2024-11-13 16:25:29,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:29,831 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2576 transitions. [2024-11-13 16:25:29,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 5 states have internal predecessors, (149), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:25:29,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2576 transitions. [2024-11-13 16:25:29,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 16:25:29,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:29,835 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:29,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 16:25:29,835 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:25:29,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:29,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1457763054, now seen corresponding path program 1 times [2024-11-13 16:25:29,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:29,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26511138] [2024-11-13 16:25:29,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:29,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:30,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:25:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:30,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:25:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:30,930 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:25:30,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:30,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26511138] [2024-11-13 16:25:30,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26511138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:25:30,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842543098] [2024-11-13 16:25:30,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:30,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:25:30,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:25:30,934 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:25:30,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:25:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:31,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 16:25:31,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:25:31,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 16:25:31,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:25:31,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-13 16:25:31,862 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:25:31,862 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:25:32,161 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:25:32,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842543098] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:25:32,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:25:32,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 5] total 12 [2024-11-13 16:25:32,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201708643] [2024-11-13 16:25:32,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:25:32,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 16:25:32,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:32,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 16:25:32,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-13 16:25:32,164 INFO L87 Difference]: Start difference. First operand 1426 states and 2576 transitions. Second operand has 12 states, 12 states have (on average 20.833333333333332) internal successors, (250), 11 states have internal predecessors, (250), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 16:25:42,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:25:42,795 INFO L93 Difference]: Finished difference Result 4256 states and 7714 transitions. [2024-11-13 16:25:42,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 16:25:42,796 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 20.833333333333332) internal successors, (250), 11 states have internal predecessors, (250), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 167 [2024-11-13 16:25:42,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:25:42,817 INFO L225 Difference]: With dead ends: 4256 [2024-11-13 16:25:42,817 INFO L226 Difference]: Without dead ends: 4256 [2024-11-13 16:25:42,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 331 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-13 16:25:42,818 INFO L432 NwaCegarLoop]: 1962 mSDtfsCounter, 5926 mSDsluCounter, 9150 mSDsCounter, 0 mSdLazyCounter, 5378 mSolverCounterSat, 3023 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6938 SdHoareTripleChecker+Valid, 11112 SdHoareTripleChecker+Invalid, 8401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3023 IncrementalHoareTripleChecker+Valid, 5378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:25:42,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6938 Valid, 11112 Invalid, 8401 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3023 Valid, 5378 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2024-11-13 16:25:42,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4256 states. [2024-11-13 16:25:43,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4256 to 1773. [2024-11-13 16:25:43,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 1260 states have (on average 1.6071428571428572) internal successors, (2025), 1762 states have internal predecessors, (2025), 508 states have call successors, (508), 4 states have call predecessors, (508), 3 states have return successors, (506), 7 states have call predecessors, (506), 506 states have call successors, (506) [2024-11-13 16:25:43,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 3039 transitions. [2024-11-13 16:25:43,183 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 3039 transitions. Word has length 167 [2024-11-13 16:25:43,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:25:43,183 INFO L471 AbstractCegarLoop]: Abstraction has 1773 states and 3039 transitions. [2024-11-13 16:25:43,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 20.833333333333332) internal successors, (250), 11 states have internal predecessors, (250), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 16:25:43,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 3039 transitions. [2024-11-13 16:25:43,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-13 16:25:43,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:25:43,194 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:43,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 16:25:43,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:25:43,398 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:25:43,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:43,400 INFO L85 PathProgramCache]: Analyzing trace with hash -209248256, now seen corresponding path program 1 times [2024-11-13 16:25:43,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:43,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602143714] [2024-11-13 16:25:43,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:43,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:48,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:25:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:48,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:25:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:48,609 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:25:48,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:48,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602143714] [2024-11-13 16:25:48,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602143714] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:25:48,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945246126] [2024-11-13 16:25:48,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:48,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:25:48,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:25:48,614 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:25:48,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 16:25:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:49,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 1903 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 16:25:49,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:25:49,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 16:25:49,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:25:50,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:25:50,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:25:50,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:25:50,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-13 16:25:50,531 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:25:50,532 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:25:51,414 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:25:51,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945246126] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:25:51,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:25:51,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 8] total 21 [2024-11-13 16:25:51,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110978904] [2024-11-13 16:25:51,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:25:51,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-13 16:25:51,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:51,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-13 16:25:51,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=273, Unknown=0, NotChecked=0, Total=420 [2024-11-13 16:25:51,419 INFO L87 Difference]: Start difference. First operand 1773 states and 3039 transitions. Second operand has 21 states, 21 states have (on average 33.904761904761905) internal successors, (712), 20 states have internal predecessors, (712), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 16:26:14,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:26:14,887 INFO L93 Difference]: Finished difference Result 9780 states and 17814 transitions. [2024-11-13 16:26:14,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-13 16:26:14,888 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 33.904761904761905) internal successors, (712), 20 states have internal predecessors, (712), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 395 [2024-11-13 16:26:14,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:26:14,919 INFO L225 Difference]: With dead ends: 9780 [2024-11-13 16:26:14,919 INFO L226 Difference]: Without dead ends: 9780 [2024-11-13 16:26:14,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 815 GetRequests, 786 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=230, Invalid=526, Unknown=0, NotChecked=0, Total=756 [2024-11-13 16:26:14,920 INFO L432 NwaCegarLoop]: 1962 mSDtfsCounter, 19337 mSDsluCounter, 18566 mSDsCounter, 0 mSdLazyCounter, 10378 mSolverCounterSat, 8022 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22361 SdHoareTripleChecker+Valid, 20528 SdHoareTripleChecker+Invalid, 18400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8022 IncrementalHoareTripleChecker+Valid, 10378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:26:14,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22361 Valid, 20528 Invalid, 18400 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8022 Valid, 10378 Invalid, 0 Unknown, 0 Unchecked, 22.0s Time] [2024-11-13 16:26:14,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9780 states. [2024-11-13 16:26:15,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9780 to 2637. [2024-11-13 16:26:15,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2637 states, 2118 states have (on average 1.4971671388101984) internal successors, (3171), 2620 states have internal predecessors, (3171), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-13 16:26:15,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2637 states to 2637 states and 4197 transitions. [2024-11-13 16:26:15,947 INFO L78 Accepts]: Start accepts. Automaton has 2637 states and 4197 transitions. Word has length 395 [2024-11-13 16:26:15,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:26:15,948 INFO L471 AbstractCegarLoop]: Abstraction has 2637 states and 4197 transitions. [2024-11-13 16:26:15,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 33.904761904761905) internal successors, (712), 20 states have internal predecessors, (712), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 16:26:15,949 INFO L276 IsEmpty]: Start isEmpty. Operand 2637 states and 4197 transitions. [2024-11-13 16:26:15,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2024-11-13 16:26:15,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:26:15,974 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:26:16,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 16:26:16,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 16:26:16,178 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:26:16,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:26:16,184 INFO L85 PathProgramCache]: Analyzing trace with hash -648837340, now seen corresponding path program 2 times [2024-11-13 16:26:16,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:26:16,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703688080] [2024-11-13 16:26:16,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:26:16,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:26:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:26:30,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:26:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:26:30,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:26:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:26:30,426 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 3422 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:26:30,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:26:30,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703688080] [2024-11-13 16:26:30,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703688080] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:26:30,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506477247] [2024-11-13 16:26:30,427 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:26:30,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:26:30,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:26:30,429 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:26:30,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 16:26:31,298 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 16:26:31,298 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:26:31,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 16:26:31,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:26:31,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 16:26:32,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3426 trivial. 0 not checked. [2024-11-13 16:26:32,310 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:26:32,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506477247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:26:32,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:26:32,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [26] total 33 [2024-11-13 16:26:32,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241967031] [2024-11-13 16:26:32,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:26:32,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:26:32,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:26:32,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:26:32,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=796, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 16:26:32,313 INFO L87 Difference]: Start difference. First operand 2637 states and 4197 transitions. Second operand has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 states have internal predecessors, (161), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:26:35,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:26:35,676 INFO L93 Difference]: Finished difference Result 3836 states and 6471 transitions. [2024-11-13 16:26:35,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 16:26:35,677 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 states have internal predecessors, (161), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 851 [2024-11-13 16:26:35,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:26:35,691 INFO L225 Difference]: With dead ends: 3836 [2024-11-13 16:26:35,691 INFO L226 Difference]: Without dead ends: 3836 [2024-11-13 16:26:35,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 890 GetRequests, 852 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=385, Invalid=1175, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 16:26:35,692 INFO L432 NwaCegarLoop]: 2549 mSDtfsCounter, 1471 mSDsluCounter, 8168 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1974 SdHoareTripleChecker+Valid, 10717 SdHoareTripleChecker+Invalid, 2005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:26:35,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1974 Valid, 10717 Invalid, 2005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 16:26:35,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3836 states. [2024-11-13 16:26:36,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3836 to 2672. [2024-11-13 16:26:36,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2672 states, 2153 states have (on average 1.4914073385973061) internal successors, (3211), 2655 states have internal predecessors, (3211), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-13 16:26:36,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 4237 transitions. [2024-11-13 16:26:36,079 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 4237 transitions. Word has length 851 [2024-11-13 16:26:36,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:26:36,080 INFO L471 AbstractCegarLoop]: Abstraction has 2672 states and 4237 transitions. [2024-11-13 16:26:36,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 states have internal predecessors, (161), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:26:36,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 4237 transitions. [2024-11-13 16:26:36,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 853 [2024-11-13 16:26:36,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:26:36,139 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:26:36,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 16:26:36,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-13 16:26:36,343 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:26:36,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:26:36,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1795202948, now seen corresponding path program 1 times [2024-11-13 16:26:36,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:26:36,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311467829] [2024-11-13 16:26:36,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:26:36,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:26:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:26:48,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:26:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:26:48,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:26:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:26:48,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 3422 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:26:48,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:26:48,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311467829] [2024-11-13 16:26:48,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311467829] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:26:48,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451561680] [2024-11-13 16:26:48,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:26:48,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:26:48,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:26:48,227 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:26:48,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 16:26:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:26:49,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 4166 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-13 16:26:49,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:26:49,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 16:26:50,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:26:50,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:26:50,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:26:50,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:26:50,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:26:50,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:26:50,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:26:50,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:26:51,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:26:51,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:26:51,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-13 16:26:51,218 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 3422 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:26:51,218 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:26:52,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 3422 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:26:52,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451561680] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:26:52,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:26:52,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 15, 14] total 39 [2024-11-13 16:26:52,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640831210] [2024-11-13 16:26:52,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:26:52,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-13 16:26:52,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:26:52,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-13 16:26:52,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=573, Invalid=909, Unknown=0, NotChecked=0, Total=1482 [2024-11-13 16:26:52,687 INFO L87 Difference]: Start difference. First operand 2672 states and 4237 transitions. Second operand has 39 states, 39 states have (on average 41.97435897435897) internal successors, (1637), 38 states have internal predecessors, (1637), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 16:27:59,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:27:59,105 INFO L93 Difference]: Finished difference Result 18530 states and 33583 transitions. [2024-11-13 16:27:59,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-13 16:27:59,106 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 41.97435897435897) internal successors, (1637), 38 states have internal predecessors, (1637), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 852 [2024-11-13 16:27:59,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:27:59,193 INFO L225 Difference]: With dead ends: 18530 [2024-11-13 16:27:59,193 INFO L226 Difference]: Without dead ends: 18530 [2024-11-13 16:27:59,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1751 GetRequests, 1698 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 863 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=878, Invalid=1774, Unknown=0, NotChecked=0, Total=2652 [2024-11-13 16:27:59,195 INFO L432 NwaCegarLoop]: 1962 mSDtfsCounter, 47531 mSDsluCounter, 32425 mSDsCounter, 0 mSdLazyCounter, 17449 mSolverCounterSat, 15926 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53579 SdHoareTripleChecker+Valid, 34387 SdHoareTripleChecker+Invalid, 33375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 15926 IncrementalHoareTripleChecker+Valid, 17449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:27:59,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53579 Valid, 34387 Invalid, 33375 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [15926 Valid, 17449 Invalid, 0 Unknown, 0 Unchecked, 61.5s Time] [2024-11-13 16:27:59,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18530 states. [2024-11-13 16:28:01,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18530 to 4400. [2024-11-13 16:28:01,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4400 states, 3869 states have (on average 1.4223313517704834) internal successors, (5503), 4371 states have internal predecessors, (5503), 526 states have call successors, (526), 4 states have call predecessors, (526), 3 states have return successors, (524), 25 states have call predecessors, (524), 524 states have call successors, (524) [2024-11-13 16:28:01,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 6553 transitions. [2024-11-13 16:28:01,375 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 6553 transitions. Word has length 852 [2024-11-13 16:28:01,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:28:01,378 INFO L471 AbstractCegarLoop]: Abstraction has 4400 states and 6553 transitions. [2024-11-13 16:28:01,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 41.97435897435897) internal successors, (1637), 38 states have internal predecessors, (1637), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 16:28:01,379 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 6553 transitions. [2024-11-13 16:28:01,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1765 [2024-11-13 16:28:01,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:28:01,414 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:28:01,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 16:28:01,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 16:28:01,615 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:28:01,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:28:01,616 INFO L85 PathProgramCache]: Analyzing trace with hash -757864900, now seen corresponding path program 2 times [2024-11-13 16:28:01,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:28:01,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556355701] [2024-11-13 16:28:01,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:28:01,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:28:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:29:12,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:29:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:29:12,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:29:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:29:12,687 INFO L134 CoverageAnalysis]: Checked inductivity of 17562 backedges. 0 proven. 17558 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:29:12,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:29:12,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556355701] [2024-11-13 16:29:12,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556355701] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:29:12,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098846538] [2024-11-13 16:29:12,688 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:29:12,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:29:12,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:29:12,691 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:29:12,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 16:29:14,769 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 16:29:14,769 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:29:14,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:29:14,800 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:29:14,961 INFO L134 CoverageAnalysis]: Checked inductivity of 17562 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17562 trivial. 0 not checked. [2024-11-13 16:29:14,961 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:29:14,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098846538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:29:14,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:29:14,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [50] total 52 [2024-11-13 16:29:14,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296093481] [2024-11-13 16:29:14,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:29:14,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:29:14,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:29:14,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:29:14,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=906, Invalid=1746, Unknown=0, NotChecked=0, Total=2652 [2024-11-13 16:29:14,966 INFO L87 Difference]: Start difference. First operand 4400 states and 6553 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:29:15,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:29:15,254 INFO L93 Difference]: Finished difference Result 4441 states and 6604 transitions. [2024-11-13 16:29:15,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:29:15,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1764 [2024-11-13 16:29:15,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:29:15,268 INFO L225 Difference]: With dead ends: 4441 [2024-11-13 16:29:15,268 INFO L226 Difference]: Without dead ends: 4441 [2024-11-13 16:29:15,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1829 GetRequests, 1779 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1237 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=906, Invalid=1746, Unknown=0, NotChecked=0, Total=2652 [2024-11-13 16:29:15,270 INFO L432 NwaCegarLoop]: 2434 mSDtfsCounter, 17 mSDsluCounter, 4678 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 7112 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:29:15,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 7112 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 16:29:15,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4441 states. [2024-11-13 16:29:15,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4441 to 4433. [2024-11-13 16:29:15,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4433 states, 3902 states have (on average 1.4202972834443874) internal successors, (5542), 4404 states have internal predecessors, (5542), 526 states have call successors, (526), 4 states have call predecessors, (526), 3 states have return successors, (524), 25 states have call predecessors, (524), 524 states have call successors, (524) [2024-11-13 16:29:15,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4433 states to 4433 states and 6592 transitions. [2024-11-13 16:29:15,511 INFO L78 Accepts]: Start accepts. Automaton has 4433 states and 6592 transitions. Word has length 1764 [2024-11-13 16:29:15,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:29:15,515 INFO L471 AbstractCegarLoop]: Abstraction has 4433 states and 6592 transitions. [2024-11-13 16:29:15,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:29:15,515 INFO L276 IsEmpty]: Start isEmpty. Operand 4433 states and 6592 transitions. [2024-11-13 16:29:15,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1766 [2024-11-13 16:29:15,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:29:15,548 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:29:15,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-13 16:29:15,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 16:29:15,749 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:29:15,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:29:15,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1621949041, now seen corresponding path program 1 times [2024-11-13 16:29:15,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:29:15,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079251007] [2024-11-13 16:29:15,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:29:15,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:29:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:29:23,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:29:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:29:23,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:29:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:29:23,897 INFO L134 CoverageAnalysis]: Checked inductivity of 17562 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17562 trivial. 0 not checked. [2024-11-13 16:29:23,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:29:23,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079251007] [2024-11-13 16:29:23,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079251007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:29:23,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:29:23,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 16:29:23,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085898592] [2024-11-13 16:29:23,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:29:23,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 16:29:23,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:29:23,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 16:29:23,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:29:23,901 INFO L87 Difference]: Start difference. First operand 4433 states and 6592 transitions. Second operand has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:29:31,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:29:31,198 INFO L93 Difference]: Finished difference Result 4449 states and 6633 transitions. [2024-11-13 16:29:31,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 16:29:31,198 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1765 [2024-11-13 16:29:31,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:29:31,212 INFO L225 Difference]: With dead ends: 4449 [2024-11-13 16:29:31,212 INFO L226 Difference]: Without dead ends: 4449 [2024-11-13 16:29:31,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:29:31,213 INFO L432 NwaCegarLoop]: 2428 mSDtfsCounter, 22 mSDsluCounter, 10297 mSDsCounter, 0 mSdLazyCounter, 3913 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 12725 SdHoareTripleChecker+Invalid, 4416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 3913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:29:31,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 12725 Invalid, 4416 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [503 Valid, 3913 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-13 16:29:31,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4449 states. [2024-11-13 16:29:31,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4449 to 4437. [2024-11-13 16:29:31,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4437 states, 3906 states have (on average 1.4201228878648233) internal successors, (5547), 4408 states have internal predecessors, (5547), 526 states have call successors, (526), 4 states have call predecessors, (526), 3 states have return successors, (524), 25 states have call predecessors, (524), 524 states have call successors, (524) [2024-11-13 16:29:31,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4437 states to 4437 states and 6597 transitions. [2024-11-13 16:29:31,429 INFO L78 Accepts]: Start accepts. Automaton has 4437 states and 6597 transitions. Word has length 1765 [2024-11-13 16:29:31,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:29:31,431 INFO L471 AbstractCegarLoop]: Abstraction has 4437 states and 6597 transitions. [2024-11-13 16:29:31,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:29:31,431 INFO L276 IsEmpty]: Start isEmpty. Operand 4437 states and 6597 transitions. [2024-11-13 16:29:31,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1767 [2024-11-13 16:29:31,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:29:31,461 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:29:31,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 16:29:31,462 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:29:31,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:29:31,463 INFO L85 PathProgramCache]: Analyzing trace with hash -555261373, now seen corresponding path program 1 times [2024-11-13 16:29:31,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:29:31,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122449114] [2024-11-13 16:29:31,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:29:31,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:29:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:29:38,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:29:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:29:38,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:29:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:29:38,552 INFO L134 CoverageAnalysis]: Checked inductivity of 17562 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17562 trivial. 0 not checked. [2024-11-13 16:29:38,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:29:38,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122449114] [2024-11-13 16:29:38,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122449114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:29:38,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:29:38,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:29:38,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736078092] [2024-11-13 16:29:38,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:29:38,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:29:38,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:29:38,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:29:38,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:29:38,555 INFO L87 Difference]: Start difference. First operand 4437 states and 6597 transitions. Second operand has 9 states, 9 states have (on average 18.22222222222222) internal successors, (164), 8 states have internal predecessors, (164), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:29:45,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:29:45,148 INFO L93 Difference]: Finished difference Result 4463 states and 6653 transitions. [2024-11-13 16:29:45,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 16:29:45,149 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.22222222222222) internal successors, (164), 8 states have internal predecessors, (164), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1766 [2024-11-13 16:29:45,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:29:45,160 INFO L225 Difference]: With dead ends: 4463 [2024-11-13 16:29:45,160 INFO L226 Difference]: Without dead ends: 4463 [2024-11-13 16:29:45,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:29:45,161 INFO L432 NwaCegarLoop]: 2418 mSDtfsCounter, 33 mSDsluCounter, 10320 mSDsCounter, 0 mSdLazyCounter, 3961 mSolverCounterSat, 504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 12738 SdHoareTripleChecker+Invalid, 4465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 504 IncrementalHoareTripleChecker+Valid, 3961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:29:45,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 12738 Invalid, 4465 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [504 Valid, 3961 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-13 16:29:45,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4463 states. [2024-11-13 16:29:45,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4463 to 4445. [2024-11-13 16:29:45,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4445 states, 3914 states have (on average 1.4200306591722023) internal successors, (5558), 4416 states have internal predecessors, (5558), 526 states have call successors, (526), 4 states have call predecessors, (526), 3 states have return successors, (524), 25 states have call predecessors, (524), 524 states have call successors, (524) [2024-11-13 16:29:45,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4445 states to 4445 states and 6608 transitions. [2024-11-13 16:29:45,316 INFO L78 Accepts]: Start accepts. Automaton has 4445 states and 6608 transitions. Word has length 1766 [2024-11-13 16:29:45,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:29:45,318 INFO L471 AbstractCegarLoop]: Abstraction has 4445 states and 6608 transitions. [2024-11-13 16:29:45,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.22222222222222) internal successors, (164), 8 states have internal predecessors, (164), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 16:29:45,319 INFO L276 IsEmpty]: Start isEmpty. Operand 4445 states and 6608 transitions. [2024-11-13 16:29:45,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1767 [2024-11-13 16:29:45,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:29:45,347 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:29:45,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 16:29:45,348 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:29:45,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:29:45,349 INFO L85 PathProgramCache]: Analyzing trace with hash 869723615, now seen corresponding path program 1 times [2024-11-13 16:29:45,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:29:45,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457950965] [2024-11-13 16:29:45,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:29:45,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:29:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:12,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:31:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:12,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:31:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:12,424 INFO L134 CoverageAnalysis]: Checked inductivity of 17562 backedges. 0 proven. 17558 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:31:12,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:12,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457950965] [2024-11-13 16:31:12,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457950965] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:31:12,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427912127] [2024-11-13 16:31:12,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:12,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:31:12,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:31:12,434 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:31:12,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 16:31:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:18,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 8689 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-13 16:31:18,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:31:18,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 16:31:19,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:19,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:19,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:19,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:20,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:20,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:20,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:20,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:20,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:21,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:21,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:21,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:21,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:22,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:22,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:22,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:23,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:23,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:23,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:23,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:23,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:24,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 16:31:24,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-13 16:31:24,100 INFO L134 CoverageAnalysis]: Checked inductivity of 17562 backedges. 0 proven. 17558 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:31:24,101 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:31:30,079 INFO L134 CoverageAnalysis]: Checked inductivity of 17562 backedges. 0 proven. 17558 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:31:30,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427912127] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:31:30,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:31:30,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 27, 26] total 75 [2024-11-13 16:31:30,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968406830] [2024-11-13 16:31:30,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:31:30,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-11-13 16:31:30,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:30,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-11-13 16:31:30,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2289, Invalid=3261, Unknown=0, NotChecked=0, Total=5550 [2024-11-13 16:31:30,138 INFO L87 Difference]: Start difference. First operand 4445 states and 6608 transitions. Second operand has 75 states, 75 states have (on average 46.49333333333333) internal successors, (3487), 74 states have internal predecessors, (3487), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 16:33:40,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:40,617 INFO L93 Difference]: Finished difference Result 37059 states and 66384 transitions. [2024-11-13 16:33:40,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-11-13 16:33:40,620 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 46.49333333333333) internal successors, (3487), 74 states have internal predecessors, (3487), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 1766 [2024-11-13 16:33:40,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:40,885 INFO L225 Difference]: With dead ends: 37059 [2024-11-13 16:33:40,885 INFO L226 Difference]: Without dead ends: 37059 [2024-11-13 16:33:40,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3617 GetRequests, 3516 SyntacticMatches, 3 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3467 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=3470, Invalid=6430, Unknown=0, NotChecked=0, Total=9900 [2024-11-13 16:33:40,891 INFO L432 NwaCegarLoop]: 1962 mSDtfsCounter, 97968 mSDsluCounter, 64036 mSDsCounter, 0 mSdLazyCounter, 29762 mSolverCounterSat, 29243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110064 SdHoareTripleChecker+Valid, 65998 SdHoareTripleChecker+Invalid, 59005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.8s SdHoareTripleChecker+Time, 29243 IncrementalHoareTripleChecker+Valid, 29762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 94.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:33:40,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110064 Valid, 65998 Invalid, 59005 Unknown, 0 Unchecked, 0.8s Time], IncrementalHoareTripleChecker [29243 Valid, 29762 Invalid, 0 Unknown, 0 Unchecked, 94.5s Time] [2024-11-13 16:33:40,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37059 states. [2024-11-13 16:33:47,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37059 to 7901. [2024-11-13 16:33:47,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7901 states, 7346 states have (on average 1.3806153008439968) internal successors, (10142), 7848 states have internal predecessors, (10142), 550 states have call successors, (550), 4 states have call predecessors, (550), 3 states have return successors, (548), 49 states have call predecessors, (548), 548 states have call successors, (548) [2024-11-13 16:33:47,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7901 states to 7901 states and 11240 transitions. [2024-11-13 16:33:47,179 INFO L78 Accepts]: Start accepts. Automaton has 7901 states and 11240 transitions. Word has length 1766 [2024-11-13 16:33:47,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:33:47,181 INFO L471 AbstractCegarLoop]: Abstraction has 7901 states and 11240 transitions. [2024-11-13 16:33:47,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 46.49333333333333) internal successors, (3487), 74 states have internal predecessors, (3487), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 16:33:47,183 INFO L276 IsEmpty]: Start isEmpty. Operand 7901 states and 11240 transitions. [2024-11-13 16:33:47,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3591 [2024-11-13 16:33:47,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:47,533 INFO L215 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:33:47,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-13 16:33:47,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef77f382-84c4-45b2-91d8-fe61797f3eb7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 16:33:47,739 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 16:33:47,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:47,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1390219087, now seen corresponding path program 2 times [2024-11-13 16:33:47,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:33:47,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094110292] [2024-11-13 16:33:47,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:47,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:33:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat