./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f54335276b565c52e40eef6a3f78ed9d794347e65877e7f862e4de86bcdea73 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:33:50,455 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:33:50,547 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-27 23:33:50,553 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:33:50,553 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:33:50,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:33:50,584 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:33:50,584 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:33:50,584 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:33:50,585 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:33:50,585 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:33:50,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:33:50,585 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:33:50,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:33:50,586 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:33:50,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:33:50,586 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:33:50,586 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:33:50,586 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:33:50,587 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:33:50,587 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-27 23:33:50,587 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-27 23:33:50,587 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-27 23:33:50,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:33:50,587 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 23:33:50,587 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:33:50,587 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:33:50,588 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:33:50,588 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:33:50,588 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:33:50,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:33:50,588 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:33:50,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:33:50,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:33:50,589 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:33:50,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:33:50,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:33:50,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:33:50,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:33:50,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:33:50,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:33:50,590 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:33:50,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:33:50,590 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:33:50,590 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:33:50,590 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:33:50,591 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:33:50,591 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_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB 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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f54335276b565c52e40eef6a3f78ed9d794347e65877e7f862e4de86bcdea73 [2024-11-27 23:33:50,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:33:50,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:33:50,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:33:50,913 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:33:50,913 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:33:50,915 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i [2024-11-27 23:33:54,069 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/data/3a9644fac/7dde878ec3b946f28ed487f901abbd32/FLAG404c956ed [2024-11-27 23:33:54,599 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:33:54,600 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i [2024-11-27 23:33:54,647 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/data/3a9644fac/7dde878ec3b946f28ed487f901abbd32/FLAG404c956ed [2024-11-27 23:33:54,670 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/data/3a9644fac/7dde878ec3b946f28ed487f901abbd32 [2024-11-27 23:33:54,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:33:54,675 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:33:54,677 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:33:54,677 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:33:54,683 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:33:54,684 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:33:54" (1/1) ... [2024-11-27 23:33:54,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248644ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:54, skipping insertion in model container [2024-11-27 23:33:54,685 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:33:54" (1/1) ... [2024-11-27 23:33:54,770 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:33:55,501 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:33:55,526 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:33:55,530 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:33:55,536 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:33:55,546 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:33:55,587 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:33:55,588 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:33:55,590 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:33:55,594 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 23:33:55,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:33:55,615 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:33:55,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:33:55,850 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:33:55,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:55 WrapperNode [2024-11-27 23:33:55,850 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:33:55,851 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:33:55,851 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:33:55,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:33:55,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:55" (1/1) ... [2024-11-27 23:33:55,896 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:55" (1/1) ... [2024-11-27 23:33:56,021 INFO L138 Inliner]: procedures = 177, calls = 724, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3262 [2024-11-27 23:33:56,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:33:56,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:33:56,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:33:56,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:33:56,032 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:55" (1/1) ... [2024-11-27 23:33:56,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:55" (1/1) ... [2024-11-27 23:33:56,094 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:55" (1/1) ... [2024-11-27 23:33:56,187 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]. [2024-11-27 23:33:56,190 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:55" (1/1) ... [2024-11-27 23:33:56,190 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:55" (1/1) ... [2024-11-27 23:33:56,271 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:55" (1/1) ... [2024-11-27 23:33:56,275 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:55" (1/1) ... [2024-11-27 23:33:56,316 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:55" (1/1) ... [2024-11-27 23:33:56,326 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:55" (1/1) ... [2024-11-27 23:33:56,341 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:55" (1/1) ... [2024-11-27 23:33:56,376 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:33:56,379 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:33:56,379 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:33:56,379 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:33:56,380 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:55" (1/1) ... [2024-11-27 23:33:56,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:33:56,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:33:56,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:33:56,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:33:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-27 23:33:56,453 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-27 23:33:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 23:33:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 23:33:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 23:33:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 23:33:56,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 23:33:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 23:33:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 23:33:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 23:33:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-27 23:33:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-27 23:33:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-27 23:33:56,455 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-27 23:33:56,455 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-27 23:33:56,456 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-27 23:33:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 23:33:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:33:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 23:33:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 23:33:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 23:33:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 23:33:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 23:33:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 23:33:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-27 23:33:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 23:33:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:33:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 23:33:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 23:33:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:33:56,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:33:56,742 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:33:56,744 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:33:56,773 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-27 23:33:56,814 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-27 23:33:56,839 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-27 23:34:01,376 INFO L? ?]: Removed 1537 outVars from TransFormulas that were not future-live. [2024-11-27 23:34:01,376 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:34:01,427 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:34:01,428 INFO L312 CfgBuilder]: Removed 31 assume(true) statements. [2024-11-27 23:34:01,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:34:01 BoogieIcfgContainer [2024-11-27 23:34:01,428 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:34:01,431 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:34:01,431 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:34:01,436 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:34:01,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:33:54" (1/3) ... [2024-11-27 23:34:01,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ebc5cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:34:01, skipping insertion in model container [2024-11-27 23:34:01,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:33:55" (2/3) ... [2024-11-27 23:34:01,437 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ebc5cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:34:01, skipping insertion in model container [2024-11-27 23:34:01,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:34:01" (3/3) ... [2024-11-27 23:34:01,438 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test9-1.i [2024-11-27 23:34:01,453 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:34:01,454 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_test9-1.i that has 6 procedures, 2077 locations, 1 initial locations, 33 loop locations, and 424 error locations. [2024-11-27 23:34:01,540 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:34:01,555 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;@1192c5d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:34:01,555 INFO L334 AbstractCegarLoop]: Starting to check reachability of 424 error locations. [2024-11-27 23:34:01,569 INFO L276 IsEmpty]: Start isEmpty. Operand has 2067 states, 1137 states have (on average 2.006156552330695) internal successors, (2281), 2060 states have internal predecessors, (2281), 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) [2024-11-27 23:34:01,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-27 23:34:01,574 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:01,574 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-27 23:34:01,575 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:34:01,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:01,580 INFO L85 PathProgramCache]: Analyzing trace with hash 65605, now seen corresponding path program 1 times [2024-11-27 23:34:01,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:01,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475381566] [2024-11-27 23:34:01,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:01,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:01,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:34:01,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:01,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475381566] [2024-11-27 23:34:01,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475381566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:01,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:01,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:34:01,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790326854] [2024-11-27 23:34:01,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:01,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:34:01,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:01,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:34:01,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:34:01,861 INFO L87 Difference]: Start difference. First operand has 2067 states, 1137 states have (on average 2.006156552330695) internal successors, (2281), 2060 states have internal predecessors, (2281), 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 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:03,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:03,744 INFO L93 Difference]: Finished difference Result 2053 states and 3217 transitions. [2024-11-27 23:34:03,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:34:03,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-27 23:34:03,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:03,779 INFO L225 Difference]: With dead ends: 2053 [2024-11-27 23:34:03,779 INFO L226 Difference]: Without dead ends: 2051 [2024-11-27 23:34:03,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:34:03,784 INFO L435 NwaCegarLoop]: 2828 mSDtfsCounter, 2092 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2595 SdHoareTripleChecker+Valid, 2880 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:03,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2595 Valid, 2880 Invalid, 959 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 23:34:03,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2051 states. [2024-11-27 23:34:04,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2051 to 2051. [2024-11-27 23:34:04,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2051 states, 1139 states have (on average 1.9376646180860404) internal successors, (2207), 2044 states have internal predecessors, (2207), 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) [2024-11-27 23:34:04,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2051 states to 2051 states and 3215 transitions. [2024-11-27 23:34:04,321 INFO L78 Accepts]: Start accepts. Automaton has 2051 states and 3215 transitions. Word has length 3 [2024-11-27 23:34:04,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:04,321 INFO L471 AbstractCegarLoop]: Abstraction has 2051 states and 3215 transitions. [2024-11-27 23:34:04,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:04,322 INFO L276 IsEmpty]: Start isEmpty. Operand 2051 states and 3215 transitions. [2024-11-27 23:34:04,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-27 23:34:04,322 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:04,322 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-27 23:34:04,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:34:04,323 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:34:04,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:04,324 INFO L85 PathProgramCache]: Analyzing trace with hash 65606, now seen corresponding path program 1 times [2024-11-27 23:34:04,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:04,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811895884] [2024-11-27 23:34:04,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:04,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:04,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:34:04,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:04,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811895884] [2024-11-27 23:34:04,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811895884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:04,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:04,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:34:04,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079323272] [2024-11-27 23:34:04,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:04,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:34:04,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:04,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:34:04,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:34:04,442 INFO L87 Difference]: Start difference. First operand 2051 states and 3215 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:06,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:06,469 INFO L93 Difference]: Finished difference Result 3816 states and 6132 transitions. [2024-11-27 23:34:06,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:34:06,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-27 23:34:06,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:06,493 INFO L225 Difference]: With dead ends: 3816 [2024-11-27 23:34:06,493 INFO L226 Difference]: Without dead ends: 3816 [2024-11-27 23:34:06,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:34:06,497 INFO L435 NwaCegarLoop]: 2930 mSDtfsCounter, 1909 mSDsluCounter, 2281 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 5211 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:06,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2411 Valid, 5211 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 23:34:06,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3816 states. [2024-11-27 23:34:06,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3816 to 3552. [2024-11-27 23:34:06,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3552 states, 2141 states have (on average 1.9196637085474078) internal successors, (4110), 3543 states have internal predecessors, (4110), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-27 23:34:06,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3552 states to 3552 states and 6122 transitions. [2024-11-27 23:34:06,895 INFO L78 Accepts]: Start accepts. Automaton has 3552 states and 6122 transitions. Word has length 3 [2024-11-27 23:34:06,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:06,896 INFO L471 AbstractCegarLoop]: Abstraction has 3552 states and 6122 transitions. [2024-11-27 23:34:06,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:06,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3552 states and 6122 transitions. [2024-11-27 23:34:06,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 23:34:06,897 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:06,898 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:06,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:34:06,898 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:34:06,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:06,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988334, now seen corresponding path program 1 times [2024-11-27 23:34:06,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:06,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131855539] [2024-11-27 23:34:06,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:06,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:07,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:34:07,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:07,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131855539] [2024-11-27 23:34:07,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131855539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:07,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:07,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:34:07,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729573576] [2024-11-27 23:34:07,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:07,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:34:07,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:07,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:34:07,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:34:07,050 INFO L87 Difference]: Start difference. First operand 3552 states and 6122 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:08,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:08,849 INFO L93 Difference]: Finished difference Result 4816 states and 8440 transitions. [2024-11-27 23:34:08,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:34:08,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-27 23:34:08,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:08,879 INFO L225 Difference]: With dead ends: 4816 [2024-11-27 23:34:08,879 INFO L226 Difference]: Without dead ends: 4816 [2024-11-27 23:34:08,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:34:08,881 INFO L435 NwaCegarLoop]: 4984 mSDtfsCounter, 2077 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2580 SdHoareTripleChecker+Valid, 7290 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:08,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2580 Valid, 7290 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 23:34:08,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4816 states. [2024-11-27 23:34:09,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4816 to 3505. [2024-11-27 23:34:09,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3505 states, 2141 states have (on average 1.8865016347501167) internal successors, (4039), 3496 states have internal predecessors, (4039), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-27 23:34:09,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3505 states to 3505 states and 6051 transitions. [2024-11-27 23:34:09,748 INFO L78 Accepts]: Start accepts. Automaton has 3505 states and 6051 transitions. Word has length 9 [2024-11-27 23:34:09,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:09,749 INFO L471 AbstractCegarLoop]: Abstraction has 3505 states and 6051 transitions. [2024-11-27 23:34:09,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:09,749 INFO L276 IsEmpty]: Start isEmpty. Operand 3505 states and 6051 transitions. [2024-11-27 23:34:09,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 23:34:09,750 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:09,750 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:09,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:34:09,751 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:34:09,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:09,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988333, now seen corresponding path program 1 times [2024-11-27 23:34:09,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:09,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690115187] [2024-11-27 23:34:09,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:09,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:09,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:34:09,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:09,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690115187] [2024-11-27 23:34:09,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690115187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:09,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:09,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:34:09,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447875377] [2024-11-27 23:34:09,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:09,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:34:09,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:09,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:34:09,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:34:09,942 INFO L87 Difference]: Start difference. First operand 3505 states and 6051 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:11,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:11,508 INFO L93 Difference]: Finished difference Result 6027 states and 10789 transitions. [2024-11-27 23:34:11,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:34:11,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-27 23:34:11,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:11,538 INFO L225 Difference]: With dead ends: 6027 [2024-11-27 23:34:11,538 INFO L226 Difference]: Without dead ends: 6027 [2024-11-27 23:34:11,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:34:11,539 INFO L435 NwaCegarLoop]: 5129 mSDtfsCounter, 1869 mSDsluCounter, 2423 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2371 SdHoareTripleChecker+Valid, 7552 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:11,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2371 Valid, 7552 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 23:34:11,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6027 states. [2024-11-27 23:34:12,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6027 to 3480. [2024-11-27 23:34:12,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3480 states, 2141 states have (on average 1.8636151331153668) internal successors, (3990), 3471 states have internal predecessors, (3990), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-27 23:34:12,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3480 states to 3480 states and 6002 transitions. [2024-11-27 23:34:12,174 INFO L78 Accepts]: Start accepts. Automaton has 3480 states and 6002 transitions. Word has length 9 [2024-11-27 23:34:12,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:12,174 INFO L471 AbstractCegarLoop]: Abstraction has 3480 states and 6002 transitions. [2024-11-27 23:34:12,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:12,175 INFO L276 IsEmpty]: Start isEmpty. Operand 3480 states and 6002 transitions. [2024-11-27 23:34:12,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-27 23:34:12,175 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:12,175 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:12,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:34:12,176 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr422ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:34:12,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:12,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1246059725, now seen corresponding path program 1 times [2024-11-27 23:34:12,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:12,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225120802] [2024-11-27 23:34:12,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:12,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:12,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:34:12,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:12,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225120802] [2024-11-27 23:34:12,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225120802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:12,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:12,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:34:12,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464620946] [2024-11-27 23:34:12,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:12,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:34:12,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:12,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:34:12,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:34:12,309 INFO L87 Difference]: Start difference. First operand 3480 states and 6002 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:13,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:13,361 INFO L93 Difference]: Finished difference Result 6645 states and 11501 transitions. [2024-11-27 23:34:13,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:34:13,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2024-11-27 23:34:13,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:13,416 INFO L225 Difference]: With dead ends: 6645 [2024-11-27 23:34:13,420 INFO L226 Difference]: Without dead ends: 6645 [2024-11-27 23:34:13,421 INFO L434 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 [2024-11-27 23:34:13,421 INFO L435 NwaCegarLoop]: 3138 mSDtfsCounter, 2091 mSDsluCounter, 5714 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2594 SdHoareTripleChecker+Valid, 8852 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:13,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2594 Valid, 8852 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:34:13,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6645 states. [2024-11-27 23:34:14,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6645 to 3482. [2024-11-27 23:34:14,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3482 states, 2143 states have (on average 1.8628091460569296) internal successors, (3992), 3473 states have internal predecessors, (3992), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-27 23:34:14,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3482 states to 3482 states and 6004 transitions. [2024-11-27 23:34:14,282 INFO L78 Accepts]: Start accepts. Automaton has 3482 states and 6004 transitions. Word has length 10 [2024-11-27 23:34:14,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:14,283 INFO L471 AbstractCegarLoop]: Abstraction has 3482 states and 6004 transitions. [2024-11-27 23:34:14,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:14,283 INFO L276 IsEmpty]: Start isEmpty. Operand 3482 states and 6004 transitions. [2024-11-27 23:34:14,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-27 23:34:14,283 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:14,284 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:14,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:34:14,284 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:34:14,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:14,285 INFO L85 PathProgramCache]: Analyzing trace with hash 495195041, now seen corresponding path program 1 times [2024-11-27 23:34:14,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:14,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409167619] [2024-11-27 23:34:14,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:14,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:14,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:34:14,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:14,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409167619] [2024-11-27 23:34:14,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409167619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:14,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:14,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:34:14,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886888485] [2024-11-27 23:34:14,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:14,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:34:14,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:14,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:34:14,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:34:14,383 INFO L87 Difference]: Start difference. First operand 3482 states and 6004 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:17,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:17,304 INFO L93 Difference]: Finished difference Result 3558 states and 6111 transitions. [2024-11-27 23:34:17,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:34:17,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-27 23:34:17,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:17,322 INFO L225 Difference]: With dead ends: 3558 [2024-11-27 23:34:17,323 INFO L226 Difference]: Without dead ends: 3558 [2024-11-27 23:34:17,323 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:34:17,325 INFO L435 NwaCegarLoop]: 2730 mSDtfsCounter, 2342 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 2295 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2845 SdHoareTripleChecker+Valid, 4333 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:17,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2845 Valid, 4333 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2295 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-27 23:34:17,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3558 states. [2024-11-27 23:34:17,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3558 to 3459. [2024-11-27 23:34:17,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3459 states, 2143 states have (on average 1.841343910405973) internal successors, (3946), 3450 states have internal predecessors, (3946), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-27 23:34:17,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 5958 transitions. [2024-11-27 23:34:17,705 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 5958 transitions. Word has length 19 [2024-11-27 23:34:17,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:17,706 INFO L471 AbstractCegarLoop]: Abstraction has 3459 states and 5958 transitions. [2024-11-27 23:34:17,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:17,706 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 5958 transitions. [2024-11-27 23:34:17,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-27 23:34:17,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:17,707 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:17,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:34:17,707 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:34:17,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:17,707 INFO L85 PathProgramCache]: Analyzing trace with hash 495195042, now seen corresponding path program 1 times [2024-11-27 23:34:17,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:17,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869369451] [2024-11-27 23:34:17,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:17,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:17,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:34:17,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:17,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869369451] [2024-11-27 23:34:17,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869369451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:17,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:17,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:34:17,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33503742] [2024-11-27 23:34:17,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:17,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:34:17,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:17,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:34:17,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:34:17,804 INFO L87 Difference]: Start difference. First operand 3459 states and 5958 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:17,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:17,864 INFO L93 Difference]: Finished difference Result 3321 states and 5752 transitions. [2024-11-27 23:34:17,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:34:17,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-27 23:34:17,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:17,877 INFO L225 Difference]: With dead ends: 3321 [2024-11-27 23:34:17,877 INFO L226 Difference]: Without dead ends: 3321 [2024-11-27 23:34:17,878 INFO L434 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 [2024-11-27 23:34:17,879 INFO L435 NwaCegarLoop]: 2995 mSDtfsCounter, 61 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 5937 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:17,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 5937 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:34:17,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3321 states. [2024-11-27 23:34:18,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3321 to 3321. [2024-11-27 23:34:18,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3321 states, 2017 states have (on average 1.8542389687654932) internal successors, (3740), 3312 states have internal predecessors, (3740), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-27 23:34:18,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3321 states to 3321 states and 5752 transitions. [2024-11-27 23:34:18,249 INFO L78 Accepts]: Start accepts. Automaton has 3321 states and 5752 transitions. Word has length 19 [2024-11-27 23:34:18,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:18,249 INFO L471 AbstractCegarLoop]: Abstraction has 3321 states and 5752 transitions. [2024-11-27 23:34:18,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:18,250 INFO L276 IsEmpty]: Start isEmpty. Operand 3321 states and 5752 transitions. [2024-11-27 23:34:18,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-27 23:34:18,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:18,251 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:18,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:34:18,252 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:34:18,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:18,252 INFO L85 PathProgramCache]: Analyzing trace with hash -858657125, now seen corresponding path program 1 times [2024-11-27 23:34:18,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:18,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335333104] [2024-11-27 23:34:18,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:18,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:18,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:34:18,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:18,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335333104] [2024-11-27 23:34:18,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335333104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:18,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:18,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:34:18,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766430816] [2024-11-27 23:34:18,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:18,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:34:18,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:18,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:34:18,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:34:18,390 INFO L87 Difference]: Start difference. First operand 3321 states and 5752 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:18,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:18,495 INFO L93 Difference]: Finished difference Result 3292 states and 5702 transitions. [2024-11-27 23:34:18,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:34:18,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-27 23:34:18,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:18,509 INFO L225 Difference]: With dead ends: 3292 [2024-11-27 23:34:18,509 INFO L226 Difference]: Without dead ends: 3292 [2024-11-27 23:34:18,509 INFO L434 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 [2024-11-27 23:34:18,510 INFO L435 NwaCegarLoop]: 2960 mSDtfsCounter, 41 mSDsluCounter, 5892 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 8852 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:18,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 8852 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:34:18,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3292 states. [2024-11-27 23:34:18,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3292 to 3286. [2024-11-27 23:34:18,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 1989 states have (on average 1.852187028657617) internal successors, (3684), 3277 states have internal predecessors, (3684), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-27 23:34:18,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 5696 transitions. [2024-11-27 23:34:18,752 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 5696 transitions. Word has length 21 [2024-11-27 23:34:18,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:18,752 INFO L471 AbstractCegarLoop]: Abstraction has 3286 states and 5696 transitions. [2024-11-27 23:34:18,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:18,753 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 5696 transitions. [2024-11-27 23:34:18,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-27 23:34:18,753 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:18,753 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:18,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:34:18,754 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:34:18,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:18,754 INFO L85 PathProgramCache]: Analyzing trace with hash -496287351, now seen corresponding path program 1 times [2024-11-27 23:34:18,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:18,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645176457] [2024-11-27 23:34:18,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:18,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:18,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:34:18,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:18,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645176457] [2024-11-27 23:34:18,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645176457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:18,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:18,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:34:18,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818597657] [2024-11-27 23:34:18,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:18,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:34:18,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:18,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:34:18,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:34:18,991 INFO L87 Difference]: Start difference. First operand 3286 states and 5696 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:22,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:22,286 INFO L93 Difference]: Finished difference Result 6062 states and 10807 transitions. [2024-11-27 23:34:22,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:34:22,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2024-11-27 23:34:22,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:22,309 INFO L225 Difference]: With dead ends: 6062 [2024-11-27 23:34:22,309 INFO L226 Difference]: Without dead ends: 6062 [2024-11-27 23:34:22,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:34:22,311 INFO L435 NwaCegarLoop]: 2799 mSDtfsCounter, 1818 mSDsluCounter, 3582 mSDsCounter, 0 mSdLazyCounter, 2359 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2318 SdHoareTripleChecker+Valid, 6381 SdHoareTripleChecker+Invalid, 2362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:22,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2318 Valid, 6381 Invalid, 2362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2359 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-27 23:34:22,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6062 states. [2024-11-27 23:34:22,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6062 to 3282. [2024-11-27 23:34:22,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3282 states, 1989 states have (on average 1.8481649069884365) internal successors, (3676), 3273 states have internal predecessors, (3676), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-27 23:34:22,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3282 states to 3282 states and 5688 transitions. [2024-11-27 23:34:22,746 INFO L78 Accepts]: Start accepts. Automaton has 3282 states and 5688 transitions. Word has length 35 [2024-11-27 23:34:22,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:22,747 INFO L471 AbstractCegarLoop]: Abstraction has 3282 states and 5688 transitions. [2024-11-27 23:34:22,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:22,747 INFO L276 IsEmpty]: Start isEmpty. Operand 3282 states and 5688 transitions. [2024-11-27 23:34:22,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-27 23:34:22,748 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:22,748 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:22,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:34:22,749 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:34:22,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:22,750 INFO L85 PathProgramCache]: Analyzing trace with hash -907140769, now seen corresponding path program 1 times [2024-11-27 23:34:22,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:22,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977653650] [2024-11-27 23:34:22,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:22,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:22,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:34:22,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:22,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977653650] [2024-11-27 23:34:22,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977653650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:22,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:22,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:34:22,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910994577] [2024-11-27 23:34:22,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:22,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:34:22,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:22,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:34:22,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:34:22,926 INFO L87 Difference]: Start difference. First operand 3282 states and 5688 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:23,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:23,014 INFO L93 Difference]: Finished difference Result 3282 states and 5680 transitions. [2024-11-27 23:34:23,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:34:23,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-27 23:34:23,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:23,029 INFO L225 Difference]: With dead ends: 3282 [2024-11-27 23:34:23,029 INFO L226 Difference]: Without dead ends: 3282 [2024-11-27 23:34:23,029 INFO L434 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 [2024-11-27 23:34:23,030 INFO L435 NwaCegarLoop]: 2955 mSDtfsCounter, 21 mSDsluCounter, 5879 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 8834 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:23,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 8834 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:34:23,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3282 states. [2024-11-27 23:34:23,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3282 to 3282. [2024-11-27 23:34:23,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3282 states, 1989 states have (on average 1.844142785319256) internal successors, (3668), 3273 states have internal predecessors, (3668), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-27 23:34:23,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3282 states to 3282 states and 5680 transitions. [2024-11-27 23:34:23,344 INFO L78 Accepts]: Start accepts. Automaton has 3282 states and 5680 transitions. Word has length 69 [2024-11-27 23:34:23,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:23,345 INFO L471 AbstractCegarLoop]: Abstraction has 3282 states and 5680 transitions. [2024-11-27 23:34:23,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:23,345 INFO L276 IsEmpty]: Start isEmpty. Operand 3282 states and 5680 transitions. [2024-11-27 23:34:23,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-27 23:34:23,348 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:23,349 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:23,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:34:23,350 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:34:23,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:23,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1031867989, now seen corresponding path program 1 times [2024-11-27 23:34:23,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:23,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605764216] [2024-11-27 23:34:23,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:23,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:23,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:34:23,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:23,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605764216] [2024-11-27 23:34:23,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605764216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:23,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:23,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:34:23,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347241562] [2024-11-27 23:34:23,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:23,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:34:23,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:23,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:34:23,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:34:23,590 INFO L87 Difference]: Start difference. First operand 3282 states and 5680 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:23,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:23,719 INFO L93 Difference]: Finished difference Result 5793 states and 10403 transitions. [2024-11-27 23:34:23,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:34:23,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-27 23:34:23,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:23,740 INFO L225 Difference]: With dead ends: 5793 [2024-11-27 23:34:23,740 INFO L226 Difference]: Without dead ends: 5793 [2024-11-27 23:34:23,740 INFO L434 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 [2024-11-27 23:34:23,741 INFO L435 NwaCegarLoop]: 3264 mSDtfsCounter, 1354 mSDsluCounter, 2925 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1854 SdHoareTripleChecker+Valid, 6189 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:23,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1854 Valid, 6189 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:34:23,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5793 states. [2024-11-27 23:34:24,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5793 to 5736. [2024-11-27 23:34:24,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5736 states, 3443 states have (on average 1.8553586988091781) internal successors, (6388), 5727 states have internal predecessors, (6388), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-27 23:34:24,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5736 states to 5736 states and 10400 transitions. [2024-11-27 23:34:24,438 INFO L78 Accepts]: Start accepts. Automaton has 5736 states and 10400 transitions. Word has length 77 [2024-11-27 23:34:24,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:24,439 INFO L471 AbstractCegarLoop]: Abstraction has 5736 states and 10400 transitions. [2024-11-27 23:34:24,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:34:24,439 INFO L276 IsEmpty]: Start isEmpty. Operand 5736 states and 10400 transitions. [2024-11-27 23:34:24,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-27 23:34:24,440 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:24,440 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:24,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:34:24,440 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:34:24,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:24,441 INFO L85 PathProgramCache]: Analyzing trace with hash 646450878, now seen corresponding path program 1 times [2024-11-27 23:34:24,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:24,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301452505] [2024-11-27 23:34:24,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:24,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:24,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:34:24,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:24,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301452505] [2024-11-27 23:34:24,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301452505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:24,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:24,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:34:24,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245886672] [2024-11-27 23:34:24,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:24,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:34:24,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:24,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:34:24,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:34:24,896 INFO L87 Difference]: Start difference. First operand 5736 states and 10400 transitions. Second operand has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 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) [2024-11-27 23:34:25,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:25,966 INFO L93 Difference]: Finished difference Result 5735 states and 10398 transitions. [2024-11-27 23:34:25,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:34:25,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 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 [2024-11-27 23:34:25,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:25,986 INFO L225 Difference]: With dead ends: 5735 [2024-11-27 23:34:25,986 INFO L226 Difference]: Without dead ends: 5735 [2024-11-27 23:34:25,987 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:34:25,988 INFO L435 NwaCegarLoop]: 2966 mSDtfsCounter, 2 mSDsluCounter, 7907 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10873 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:25,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10873 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:34:25,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5735 states. [2024-11-27 23:34:26,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5735 to 5735. [2024-11-27 23:34:26,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5735 states, 3443 states have (on average 1.8547778100493755) internal successors, (6386), 5726 states have internal predecessors, (6386), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-27 23:34:26,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5735 states to 5735 states and 10398 transitions. [2024-11-27 23:34:26,455 INFO L78 Accepts]: Start accepts. Automaton has 5735 states and 10398 transitions. Word has length 85 [2024-11-27 23:34:26,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:26,457 INFO L471 AbstractCegarLoop]: Abstraction has 5735 states and 10398 transitions. [2024-11-27 23:34:26,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 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) [2024-11-27 23:34:26,457 INFO L276 IsEmpty]: Start isEmpty. Operand 5735 states and 10398 transitions. [2024-11-27 23:34:26,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-27 23:34:26,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:26,458 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:26,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:34:26,459 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:34:26,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:26,459 INFO L85 PathProgramCache]: Analyzing trace with hash 646450879, now seen corresponding path program 1 times [2024-11-27 23:34:26,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:26,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761583919] [2024-11-27 23:34:26,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:26,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:27,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:34:27,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:27,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761583919] [2024-11-27 23:34:27,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761583919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:27,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:27,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:34:27,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586099679] [2024-11-27 23:34:27,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:27,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:34:27,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:27,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:34:27,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:34:27,170 INFO L87 Difference]: Start difference. First operand 5735 states and 10398 transitions. Second operand has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 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) [2024-11-27 23:34:28,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:28,380 INFO L93 Difference]: Finished difference Result 5734 states and 10396 transitions. [2024-11-27 23:34:28,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:34:28,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 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 [2024-11-27 23:34:28,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:28,401 INFO L225 Difference]: With dead ends: 5734 [2024-11-27 23:34:28,401 INFO L226 Difference]: Without dead ends: 5734 [2024-11-27 23:34:28,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:34:28,402 INFO L435 NwaCegarLoop]: 2966 mSDtfsCounter, 1 mSDsluCounter, 7845 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10811 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:28,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10811 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:34:28,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5734 states. [2024-11-27 23:34:28,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5734 to 5734. [2024-11-27 23:34:28,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5734 states, 3441 states have (on average 1.855274629468178) internal successors, (6384), 5725 states have internal predecessors, (6384), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-27 23:34:28,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5734 states to 5734 states and 10396 transitions. [2024-11-27 23:34:28,934 INFO L78 Accepts]: Start accepts. Automaton has 5734 states and 10396 transitions. Word has length 85 [2024-11-27 23:34:28,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:28,934 INFO L471 AbstractCegarLoop]: Abstraction has 5734 states and 10396 transitions. [2024-11-27 23:34:28,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 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) [2024-11-27 23:34:28,934 INFO L276 IsEmpty]: Start isEmpty. Operand 5734 states and 10396 transitions. [2024-11-27 23:34:28,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-27 23:34:28,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:28,935 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:28,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:34:28,935 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:34:28,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:28,936 INFO L85 PathProgramCache]: Analyzing trace with hash 957747781, now seen corresponding path program 1 times [2024-11-27 23:34:28,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:28,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424410135] [2024-11-27 23:34:28,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:28,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:29,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:34:29,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:29,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424410135] [2024-11-27 23:34:29,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424410135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:29,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:29,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:34:29,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843677295] [2024-11-27 23:34:29,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:29,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:34:29,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:29,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:34:29,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:34:29,259 INFO L87 Difference]: Start difference. First operand 5734 states and 10396 transitions. Second operand has 7 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:34:33,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:33,674 INFO L93 Difference]: Finished difference Result 5752 states and 10422 transitions. [2024-11-27 23:34:33,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:34:33,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2024-11-27 23:34:33,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:33,702 INFO L225 Difference]: With dead ends: 5752 [2024-11-27 23:34:33,702 INFO L226 Difference]: Without dead ends: 5752 [2024-11-27 23:34:33,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:34:33,704 INFO L435 NwaCegarLoop]: 2951 mSDtfsCounter, 13 mSDsluCounter, 8399 mSDsCounter, 0 mSdLazyCounter, 3492 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 11350 SdHoareTripleChecker+Invalid, 3997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 3492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:33,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 11350 Invalid, 3997 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [505 Valid, 3492 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-27 23:34:33,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5752 states. [2024-11-27 23:34:34,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5752 to 5743. [2024-11-27 23:34:34,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5743 states, 3449 states have (on average 1.8541606262684835) internal successors, (6395), 5732 states have internal predecessors, (6395), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 3 states have return successors, (2010), 11 states have call predecessors, (2010), 2005 states have call successors, (2010) [2024-11-27 23:34:34,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5743 states to 5743 states and 10412 transitions. [2024-11-27 23:34:34,387 INFO L78 Accepts]: Start accepts. Automaton has 5743 states and 10412 transitions. Word has length 93 [2024-11-27 23:34:34,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:34,388 INFO L471 AbstractCegarLoop]: Abstraction has 5743 states and 10412 transitions. [2024-11-27 23:34:34,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:34:34,388 INFO L276 IsEmpty]: Start isEmpty. Operand 5743 states and 10412 transitions. [2024-11-27 23:34:34,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-27 23:34:34,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:34,389 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:34,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 23:34:34,389 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:34:34,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:34,390 INFO L85 PathProgramCache]: Analyzing trace with hash 957747782, now seen corresponding path program 1 times [2024-11-27 23:34:34,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:34,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884935857] [2024-11-27 23:34:34,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:34,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:35,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:34:35,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:35,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884935857] [2024-11-27 23:34:35,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884935857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:35,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:35,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:34:35,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550775114] [2024-11-27 23:34:35,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:35,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:34:35,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:35,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:34:35,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:34:35,231 INFO L87 Difference]: Start difference. First operand 5743 states and 10412 transitions. Second operand has 6 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:34:40,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:40,009 INFO L93 Difference]: Finished difference Result 5743 states and 10410 transitions. [2024-11-27 23:34:40,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:34:40,010 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2024-11-27 23:34:40,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:40,036 INFO L225 Difference]: With dead ends: 5743 [2024-11-27 23:34:40,036 INFO L226 Difference]: Without dead ends: 5743 [2024-11-27 23:34:40,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:34:40,037 INFO L435 NwaCegarLoop]: 2955 mSDtfsCounter, 8 mSDsluCounter, 8162 mSDsCounter, 0 mSdLazyCounter, 3209 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11117 SdHoareTripleChecker+Invalid, 3712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 3209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:40,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11117 Invalid, 3712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 3209 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-27 23:34:40,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5743 states. [2024-11-27 23:34:40,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5743 to 5743. [2024-11-27 23:34:40,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5743 states, 3449 states have (on average 1.853580748042911) internal successors, (6393), 5732 states have internal predecessors, (6393), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 3 states have return successors, (2010), 11 states have call predecessors, (2010), 2005 states have call successors, (2010) [2024-11-27 23:34:40,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5743 states to 5743 states and 10410 transitions. [2024-11-27 23:34:40,840 INFO L78 Accepts]: Start accepts. Automaton has 5743 states and 10410 transitions. Word has length 93 [2024-11-27 23:34:40,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:40,841 INFO L471 AbstractCegarLoop]: Abstraction has 5743 states and 10410 transitions. [2024-11-27 23:34:40,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:34:40,841 INFO L276 IsEmpty]: Start isEmpty. Operand 5743 states and 10410 transitions. [2024-11-27 23:34:40,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-27 23:34:40,842 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:40,842 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:40,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 23:34:40,843 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:34:40,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:40,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1828392253, now seen corresponding path program 1 times [2024-11-27 23:34:40,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:40,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747666668] [2024-11-27 23:34:40,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:40,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:41,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:34:41,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:41,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747666668] [2024-11-27 23:34:41,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747666668] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:41,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427400083] [2024-11-27 23:34:41,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:41,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:41,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:41,645 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:41,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:34:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:41,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-27 23:34:41,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:42,182 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 23:34:42,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-27 23:34:42,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:34:42,394 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 22 treesize of output 10 [2024-11-27 23:34:42,673 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:34:42,673 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:34:42,759 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 31 treesize of output 13 [2024-11-27 23:34:42,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:34:42,810 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:42,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427400083] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:42,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:34:42,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 18 [2024-11-27 23:34:42,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549963910] [2024-11-27 23:34:42,898 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:34:42,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 23:34:42,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:42,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 23:34:42,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=319, Unknown=5, NotChecked=0, Total=380 [2024-11-27 23:34:42,900 INFO L87 Difference]: Start difference. First operand 5743 states and 10410 transitions. Second operand has 19 states, 16 states have (on average 7.4375) internal successors, (119), 18 states have internal predecessors, (119), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:34:56,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:56,924 INFO L93 Difference]: Finished difference Result 5750 states and 10416 transitions. [2024-11-27 23:34:56,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:34:56,925 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 7.4375) internal successors, (119), 18 states have internal predecessors, (119), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 94 [2024-11-27 23:34:56,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:56,946 INFO L225 Difference]: With dead ends: 5750 [2024-11-27 23:34:56,946 INFO L226 Difference]: Without dead ends: 5750 [2024-11-27 23:34:56,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=464, Unknown=5, NotChecked=0, Total=552 [2024-11-27 23:34:56,947 INFO L435 NwaCegarLoop]: 2619 mSDtfsCounter, 1900 mSDsluCounter, 17560 mSDsCounter, 0 mSdLazyCounter, 12481 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2404 SdHoareTripleChecker+Valid, 20179 SdHoareTripleChecker+Invalid, 12998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 12481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:56,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2404 Valid, 20179 Invalid, 12998 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [517 Valid, 12481 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2024-11-27 23:34:56,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5750 states. [2024-11-27 23:34:57,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5750 to 5747. [2024-11-27 23:34:57,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5747 states, 3453 states have (on average 1.8523023457862728) internal successors, (6396), 5735 states have internal predecessors, (6396), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:34:57,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5747 states to 5747 states and 10410 transitions. [2024-11-27 23:34:57,869 INFO L78 Accepts]: Start accepts. Automaton has 5747 states and 10410 transitions. Word has length 94 [2024-11-27 23:34:57,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:57,869 INFO L471 AbstractCegarLoop]: Abstraction has 5747 states and 10410 transitions. [2024-11-27 23:34:57,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 7.4375) internal successors, (119), 18 states have internal predecessors, (119), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:34:57,870 INFO L276 IsEmpty]: Start isEmpty. Operand 5747 states and 10410 transitions. [2024-11-27 23:34:57,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-27 23:34:57,871 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:57,871 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:57,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:34:58,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 23:34:58,076 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:34:58,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:58,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1828392254, now seen corresponding path program 1 times [2024-11-27 23:34:58,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:58,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330794536] [2024-11-27 23:34:58,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:58,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:59,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:34:59,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:59,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330794536] [2024-11-27 23:34:59,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330794536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:59,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244048595] [2024-11-27 23:34:59,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:59,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:59,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:59,276 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:59,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:34:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:59,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-27 23:34:59,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:59,944 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-27 23:34:59,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-27 23:34:59,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 23:34:59,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:35:00,002 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 13 treesize of output 9 [2024-11-27 23:35:00,145 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 22 treesize of output 10 [2024-11-27 23:35:00,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:35:00,319 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:35:00,319 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 23:35:00,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:35:00,389 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 31 treesize of output 13 [2024-11-27 23:35:00,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:35:00,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:00,425 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:35:00,569 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_728 (Array Int Int)) (v_ArrVal_729 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_729) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 20) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_728) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_729 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_729) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 16))))) is different from false [2024-11-27 23:35:00,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244048595] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:35:00,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:35:00,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 17 [2024-11-27 23:35:00,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406223642] [2024-11-27 23:35:00,573 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:35:00,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 23:35:00,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:00,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 23:35:00,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=324, Unknown=1, NotChecked=36, Total=420 [2024-11-27 23:35:00,575 INFO L87 Difference]: Start difference. First operand 5747 states and 10410 transitions. Second operand has 18 states, 15 states have (on average 7.933333333333334) internal successors, (119), 18 states have internal predecessors, (119), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:35:13,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:13,811 INFO L93 Difference]: Finished difference Result 5749 states and 10414 transitions. [2024-11-27 23:35:13,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:35:13,812 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 7.933333333333334) internal successors, (119), 18 states have internal predecessors, (119), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 94 [2024-11-27 23:35:13,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:13,831 INFO L225 Difference]: With dead ends: 5749 [2024-11-27 23:35:13,832 INFO L226 Difference]: Without dead ends: 5749 [2024-11-27 23:35:13,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=463, Unknown=1, NotChecked=44, Total=600 [2024-11-27 23:35:13,834 INFO L435 NwaCegarLoop]: 2622 mSDtfsCounter, 1904 mSDsluCounter, 18242 mSDsCounter, 0 mSdLazyCounter, 10702 mSolverCounterSat, 519 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2408 SdHoareTripleChecker+Valid, 20864 SdHoareTripleChecker+Invalid, 11221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 519 IncrementalHoareTripleChecker+Valid, 10702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:13,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2408 Valid, 20864 Invalid, 11221 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [519 Valid, 10702 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2024-11-27 23:35:13,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5749 states. [2024-11-27 23:35:14,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5749 to 5737. [2024-11-27 23:35:14,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5737 states, 3445 states have (on average 1.853410740203193) internal successors, (6385), 5727 states have internal predecessors, (6385), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 3 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-27 23:35:14,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5737 states to 5737 states and 10397 transitions. [2024-11-27 23:35:14,578 INFO L78 Accepts]: Start accepts. Automaton has 5737 states and 10397 transitions. Word has length 94 [2024-11-27 23:35:14,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:14,579 INFO L471 AbstractCegarLoop]: Abstraction has 5737 states and 10397 transitions. [2024-11-27 23:35:14,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 7.933333333333334) internal successors, (119), 18 states have internal predecessors, (119), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:35:14,579 INFO L276 IsEmpty]: Start isEmpty. Operand 5737 states and 10397 transitions. [2024-11-27 23:35:14,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-27 23:35:14,579 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:14,580 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:14,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:35:14,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-27 23:35:14,781 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:35:14,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:14,781 INFO L85 PathProgramCache]: Analyzing trace with hash 797042921, now seen corresponding path program 1 times [2024-11-27 23:35:14,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:14,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146975799] [2024-11-27 23:35:14,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:14,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:35:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:15,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:15,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:35:15,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146975799] [2024-11-27 23:35:15,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146975799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:15,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:15,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-27 23:35:15,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834297434] [2024-11-27 23:35:15,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:15,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 23:35:15,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:15,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 23:35:15,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:35:15,819 INFO L87 Difference]: Start difference. First operand 5737 states and 10397 transitions. Second operand has 14 states, 12 states have (on average 7.833333333333333) internal successors, (94), 13 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:35:23,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:23,708 INFO L93 Difference]: Finished difference Result 5756 states and 10422 transitions. [2024-11-27 23:35:23,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:35:23,708 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.833333333333333) internal successors, (94), 13 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2024-11-27 23:35:23,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:23,730 INFO L225 Difference]: With dead ends: 5756 [2024-11-27 23:35:23,730 INFO L226 Difference]: Without dead ends: 5756 [2024-11-27 23:35:23,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:35:23,731 INFO L435 NwaCegarLoop]: 2619 mSDtfsCounter, 1892 mSDsluCounter, 12721 mSDsCounter, 0 mSdLazyCounter, 8916 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2396 SdHoareTripleChecker+Valid, 15340 SdHoareTripleChecker+Invalid, 9430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 8916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:23,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2396 Valid, 15340 Invalid, 9430 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [514 Valid, 8916 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-27 23:35:23,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2024-11-27 23:35:24,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 5752. [2024-11-27 23:35:24,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5752 states, 3459 states have (on average 1.8508239375542064) internal successors, (6402), 5740 states have internal predecessors, (6402), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:35:24,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5752 states to 5752 states and 10416 transitions. [2024-11-27 23:35:24,256 INFO L78 Accepts]: Start accepts. Automaton has 5752 states and 10416 transitions. Word has length 96 [2024-11-27 23:35:24,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:24,257 INFO L471 AbstractCegarLoop]: Abstraction has 5752 states and 10416 transitions. [2024-11-27 23:35:24,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.833333333333333) internal successors, (94), 13 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:35:24,257 INFO L276 IsEmpty]: Start isEmpty. Operand 5752 states and 10416 transitions. [2024-11-27 23:35:24,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-27 23:35:24,258 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:24,258 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:24,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 23:35:24,259 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:35:24,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:24,261 INFO L85 PathProgramCache]: Analyzing trace with hash 797042922, now seen corresponding path program 1 times [2024-11-27 23:35:24,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:24,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145812657] [2024-11-27 23:35:24,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:24,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:35:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:25,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:25,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:35:25,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145812657] [2024-11-27 23:35:25,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145812657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:25,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:35:25,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 23:35:25,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653537646] [2024-11-27 23:35:25,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:25,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:35:25,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:25,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:35:25,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:35:25,338 INFO L87 Difference]: Start difference. First operand 5752 states and 10416 transitions. Second operand has 11 states, 10 states have (on average 9.4) internal successors, (94), 11 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:35:33,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:33,805 INFO L93 Difference]: Finished difference Result 5755 states and 10420 transitions. [2024-11-27 23:35:33,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:35:33,806 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.4) internal successors, (94), 11 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2024-11-27 23:35:33,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:33,816 INFO L225 Difference]: With dead ends: 5755 [2024-11-27 23:35:33,816 INFO L226 Difference]: Without dead ends: 5755 [2024-11-27 23:35:33,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:35:33,817 INFO L435 NwaCegarLoop]: 2623 mSDtfsCounter, 1902 mSDsluCounter, 13187 mSDsCounter, 0 mSdLazyCounter, 7376 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 15810 SdHoareTripleChecker+Invalid, 7888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 7376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:33,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2406 Valid, 15810 Invalid, 7888 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [512 Valid, 7376 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2024-11-27 23:35:33,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5755 states. [2024-11-27 23:35:34,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5755 to 5752. [2024-11-27 23:35:34,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5752 states, 3459 states have (on average 1.8502457357617808) internal successors, (6400), 5740 states have internal predecessors, (6400), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:35:34,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5752 states to 5752 states and 10414 transitions. [2024-11-27 23:35:34,425 INFO L78 Accepts]: Start accepts. Automaton has 5752 states and 10414 transitions. Word has length 96 [2024-11-27 23:35:34,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:34,425 INFO L471 AbstractCegarLoop]: Abstraction has 5752 states and 10414 transitions. [2024-11-27 23:35:34,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.4) internal successors, (94), 11 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:35:34,425 INFO L276 IsEmpty]: Start isEmpty. Operand 5752 states and 10414 transitions. [2024-11-27 23:35:34,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 23:35:34,426 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:34,426 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:34,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 23:35:34,427 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:35:34,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:34,428 INFO L85 PathProgramCache]: Analyzing trace with hash 859007729, now seen corresponding path program 1 times [2024-11-27 23:35:34,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:34,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847190295] [2024-11-27 23:35:34,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:34,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:35:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:35,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:35,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:35:35,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847190295] [2024-11-27 23:35:35,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847190295] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:35:35,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107964535] [2024-11-27 23:35:35,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:35,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:35:35,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:35:35,050 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:35:35,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:35:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:35,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 23:35:35,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:35:35,491 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 23:35:35,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-27 23:35:35,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:35:35,644 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 22 treesize of output 10 [2024-11-27 23:35:35,823 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:35:35,824 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:35:35,934 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:35:35,934 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:35:35,953 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 31 treesize of output 13 [2024-11-27 23:35:35,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:35,998 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:35:36,010 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1009 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1009) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2024-11-27 23:35:36,094 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1009 (Array Int Int)) (v_ArrVal_1012 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1012))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1009)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-27 23:35:36,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107964535] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:35:36,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:35:36,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 21 [2024-11-27 23:35:36,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820522843] [2024-11-27 23:35:36,099 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:35:36,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 23:35:36,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:36,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 23:35:36,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=425, Unknown=9, NotChecked=86, Total=600 [2024-11-27 23:35:36,100 INFO L87 Difference]: Start difference. First operand 5752 states and 10414 transitions. Second operand has 22 states, 19 states have (on average 6.578947368421052) internal successors, (125), 21 states have internal predecessors, (125), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:35:47,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:47,877 INFO L93 Difference]: Finished difference Result 5754 states and 10418 transitions. [2024-11-27 23:35:47,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:35:47,877 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 6.578947368421052) internal successors, (125), 21 states have internal predecessors, (125), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 97 [2024-11-27 23:35:47,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:47,887 INFO L225 Difference]: With dead ends: 5754 [2024-11-27 23:35:47,887 INFO L226 Difference]: Without dead ends: 5754 [2024-11-27 23:35:47,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=102, Invalid=547, Unknown=9, NotChecked=98, Total=756 [2024-11-27 23:35:47,888 INFO L435 NwaCegarLoop]: 2618 mSDtfsCounter, 1875 mSDsluCounter, 19134 mSDsCounter, 0 mSdLazyCounter, 13853 mSolverCounterSat, 515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2379 SdHoareTripleChecker+Valid, 21752 SdHoareTripleChecker+Invalid, 14368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 13853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:47,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2379 Valid, 21752 Invalid, 14368 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [515 Valid, 13853 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2024-11-27 23:35:47,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5754 states. [2024-11-27 23:35:48,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5754 to 5751. [2024-11-27 23:35:48,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5751 states, 3459 states have (on average 1.8496675339693553) internal successors, (6398), 5739 states have internal predecessors, (6398), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:35:48,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5751 states to 5751 states and 10412 transitions. [2024-11-27 23:35:48,431 INFO L78 Accepts]: Start accepts. Automaton has 5751 states and 10412 transitions. Word has length 97 [2024-11-27 23:35:48,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:48,433 INFO L471 AbstractCegarLoop]: Abstraction has 5751 states and 10412 transitions. [2024-11-27 23:35:48,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 6.578947368421052) internal successors, (125), 21 states have internal predecessors, (125), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:35:48,433 INFO L276 IsEmpty]: Start isEmpty. Operand 5751 states and 10412 transitions. [2024-11-27 23:35:48,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 23:35:48,434 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:48,435 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:48,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 23:35:48,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:35:48,636 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:35:48,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:48,638 INFO L85 PathProgramCache]: Analyzing trace with hash 859007730, now seen corresponding path program 1 times [2024-11-27 23:35:48,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:48,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996019024] [2024-11-27 23:35:48,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:48,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:35:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:49,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:49,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:35:49,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996019024] [2024-11-27 23:35:49,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996019024] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:35:49,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323611529] [2024-11-27 23:35:49,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:49,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:35:49,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:35:49,934 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:35:49,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:35:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:50,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-27 23:35:50,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:35:50,389 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-27 23:35:50,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-27 23:35:50,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 23:35:50,432 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 13 treesize of output 9 [2024-11-27 23:35:50,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:35:50,541 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 22 treesize of output 10 [2024-11-27 23:35:50,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:35:50,666 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:35:50,666 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 23:35:50,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:35:50,757 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:35:50,757 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 23:35:50,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:35:50,786 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 31 treesize of output 13 [2024-11-27 23:35:50,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:35:50,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:35:50,798 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:35:50,880 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1163 (Array Int Int))) (<= 0 (+ 4 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1163) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_1164 (Array Int Int)) (v_ArrVal_1163 (Array Int Int))) (<= (+ 8 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1163) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1164) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-27 23:35:51,028 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1170 (Array Int Int)) (v_ArrVal_1169 (Array Int Int)) (v_ArrVal_1164 (Array Int Int)) (v_ArrVal_1163 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1170))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1169) .cse0 v_ArrVal_1163) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_1164) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1170 (Array Int Int)) (v_ArrVal_1169 (Array Int Int)) (v_ArrVal_1163 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1169) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1170) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1163) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 4))))) is different from false [2024-11-27 23:35:51,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323611529] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:35:51,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:35:51,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2024-11-27 23:35:51,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392050611] [2024-11-27 23:35:51,031 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:35:51,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 23:35:51,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:51,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 23:35:51,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=499, Unknown=16, NotChecked=94, Total=702 [2024-11-27 23:35:51,032 INFO L87 Difference]: Start difference. First operand 5751 states and 10412 transitions. Second operand has 22 states, 19 states have (on average 9.68421052631579) internal successors, (184), 22 states have internal predecessors, (184), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:36:05,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:05,060 INFO L93 Difference]: Finished difference Result 5753 states and 10416 transitions. [2024-11-27 23:36:05,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:36:05,060 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 9.68421052631579) internal successors, (184), 22 states have internal predecessors, (184), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 97 [2024-11-27 23:36:05,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:05,069 INFO L225 Difference]: With dead ends: 5753 [2024-11-27 23:36:05,069 INFO L226 Difference]: Without dead ends: 5753 [2024-11-27 23:36:05,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=149, Invalid=712, Unknown=17, NotChecked=114, Total=992 [2024-11-27 23:36:05,070 INFO L435 NwaCegarLoop]: 2618 mSDtfsCounter, 1916 mSDsluCounter, 20732 mSDsCounter, 0 mSdLazyCounter, 12792 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2420 SdHoareTripleChecker+Valid, 23350 SdHoareTripleChecker+Invalid, 13312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 12792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:05,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2420 Valid, 23350 Invalid, 13312 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [520 Valid, 12792 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2024-11-27 23:36:05,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5753 states. [2024-11-27 23:36:05,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5753 to 5735. [2024-11-27 23:36:05,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5735 states, 3445 states have (on average 1.8522496371552974) internal successors, (6381), 5725 states have internal predecessors, (6381), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 3 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-27 23:36:05,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5735 states to 5735 states and 10393 transitions. [2024-11-27 23:36:05,618 INFO L78 Accepts]: Start accepts. Automaton has 5735 states and 10393 transitions. Word has length 97 [2024-11-27 23:36:05,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:05,618 INFO L471 AbstractCegarLoop]: Abstraction has 5735 states and 10393 transitions. [2024-11-27 23:36:05,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 9.68421052631579) internal successors, (184), 22 states have internal predecessors, (184), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:36:05,619 INFO L276 IsEmpty]: Start isEmpty. Operand 5735 states and 10393 transitions. [2024-11-27 23:36:05,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-27 23:36:05,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:05,620 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:36:05,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 23:36:05,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-27 23:36:05,824 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr88REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:36:05,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:05,832 INFO L85 PathProgramCache]: Analyzing trace with hash 2127100652, now seen corresponding path program 1 times [2024-11-27 23:36:05,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:36:05,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743373580] [2024-11-27 23:36:05,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:05,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:36:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:06,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:36:06,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:36:06,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743373580] [2024-11-27 23:36:06,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743373580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:36:06,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:36:06,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-27 23:36:06,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122494428] [2024-11-27 23:36:06,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:36:06,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 23:36:06,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:36:06,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 23:36:06,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:36:06,573 INFO L87 Difference]: Start difference. First operand 5735 states and 10393 transitions. Second operand has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 14 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:36:13,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:13,465 INFO L93 Difference]: Finished difference Result 5760 states and 10424 transitions. [2024-11-27 23:36:13,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:36:13,469 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 14 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2024-11-27 23:36:13,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:13,481 INFO L225 Difference]: With dead ends: 5760 [2024-11-27 23:36:13,481 INFO L226 Difference]: Without dead ends: 5760 [2024-11-27 23:36:13,481 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:36:13,483 INFO L435 NwaCegarLoop]: 2618 mSDtfsCounter, 1893 mSDsluCounter, 14322 mSDsCounter, 0 mSdLazyCounter, 9770 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 16940 SdHoareTripleChecker+Invalid, 10284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 9770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:13,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2397 Valid, 16940 Invalid, 10284 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [514 Valid, 9770 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-27 23:36:13,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5760 states. [2024-11-27 23:36:14,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5760 to 5756. [2024-11-27 23:36:14,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5756 states, 3465 states have (on average 1.8481962481962482) internal successors, (6404), 5744 states have internal predecessors, (6404), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:36:14,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5756 states to 5756 states and 10418 transitions. [2024-11-27 23:36:14,091 INFO L78 Accepts]: Start accepts. Automaton has 5756 states and 10418 transitions. Word has length 99 [2024-11-27 23:36:14,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:14,091 INFO L471 AbstractCegarLoop]: Abstraction has 5756 states and 10418 transitions. [2024-11-27 23:36:14,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 14 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:36:14,092 INFO L276 IsEmpty]: Start isEmpty. Operand 5756 states and 10418 transitions. [2024-11-27 23:36:14,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-27 23:36:14,093 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:14,093 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:36:14,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-27 23:36:14,093 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr89REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:36:14,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:14,095 INFO L85 PathProgramCache]: Analyzing trace with hash 2127100653, now seen corresponding path program 1 times [2024-11-27 23:36:14,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:36:14,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681816932] [2024-11-27 23:36:14,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:14,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:36:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:14,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:36:14,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:36:14,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681816932] [2024-11-27 23:36:14,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681816932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:36:14,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:36:14,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:36:14,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914660264] [2024-11-27 23:36:14,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:36:14,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:36:14,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:36:14,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:36:14,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:36:14,986 INFO L87 Difference]: Start difference. First operand 5756 states and 10418 transitions. Second operand has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:36:23,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:23,277 INFO L93 Difference]: Finished difference Result 5759 states and 10422 transitions. [2024-11-27 23:36:23,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:36:23,277 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2024-11-27 23:36:23,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:23,290 INFO L225 Difference]: With dead ends: 5759 [2024-11-27 23:36:23,290 INFO L226 Difference]: Without dead ends: 5759 [2024-11-27 23:36:23,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:36:23,291 INFO L435 NwaCegarLoop]: 2622 mSDtfsCounter, 1885 mSDsluCounter, 13190 mSDsCounter, 0 mSdLazyCounter, 7914 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2389 SdHoareTripleChecker+Valid, 15812 SdHoareTripleChecker+Invalid, 8426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 7914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:23,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2389 Valid, 15812 Invalid, 8426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [512 Valid, 7914 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-27 23:36:23,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5759 states. [2024-11-27 23:36:23,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5759 to 5756. [2024-11-27 23:36:23,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5756 states, 3465 states have (on average 1.8476190476190477) internal successors, (6402), 5744 states have internal predecessors, (6402), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:36:23,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5756 states to 5756 states and 10416 transitions. [2024-11-27 23:36:23,812 INFO L78 Accepts]: Start accepts. Automaton has 5756 states and 10416 transitions. Word has length 99 [2024-11-27 23:36:23,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:23,812 INFO L471 AbstractCegarLoop]: Abstraction has 5756 states and 10416 transitions. [2024-11-27 23:36:23,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:36:23,812 INFO L276 IsEmpty]: Start isEmpty. Operand 5756 states and 10416 transitions. [2024-11-27 23:36:23,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 23:36:23,813 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:23,813 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:36:23,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 23:36:23,813 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr88REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:36:23,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:23,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1284758500, now seen corresponding path program 1 times [2024-11-27 23:36:23,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:36:23,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572474507] [2024-11-27 23:36:23,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:23,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:36:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:24,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:36:24,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:36:24,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572474507] [2024-11-27 23:36:24,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572474507] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:36:24,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65251329] [2024-11-27 23:36:24,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:24,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:36:24,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:36:24,511 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:36:24,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:36:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:24,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-27 23:36:24,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:36:24,940 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 23:36:24,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-27 23:36:24,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:36:25,078 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 22 treesize of output 10 [2024-11-27 23:36:25,251 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:36:25,251 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:36:25,363 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:36:25,363 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:36:25,442 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:36:25,443 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:36:25,460 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 31 treesize of output 13 [2024-11-27 23:36:25,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:36:25,500 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:36:25,512 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1475 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1475) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2024-11-27 23:36:25,576 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1475 (Array Int Int)) (v_ArrVal_1474 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1474))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1475)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-27 23:36:25,584 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1475 (Array Int Int)) (v_ArrVal_1474 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1474))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1475)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-27 23:36:25,616 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1478 (Array Int Int)) (v_ArrVal_1475 (Array Int Int)) (v_ArrVal_1474 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1478))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1474)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1475)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-27 23:36:25,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65251329] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:36:25,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:36:25,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 23 [2024-11-27 23:36:25,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699445414] [2024-11-27 23:36:25,618 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:36:25,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-27 23:36:25,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:36:25,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-27 23:36:25,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=505, Unknown=12, NotChecked=196, Total=812 [2024-11-27 23:36:25,619 INFO L87 Difference]: Start difference. First operand 5756 states and 10416 transitions. Second operand has 24 states, 21 states have (on average 6.238095238095238) internal successors, (131), 23 states have internal predecessors, (131), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:36:43,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:43,934 INFO L93 Difference]: Finished difference Result 5758 states and 10420 transitions. [2024-11-27 23:36:43,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:36:43,934 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 6.238095238095238) internal successors, (131), 23 states have internal predecessors, (131), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 100 [2024-11-27 23:36:43,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:43,942 INFO L225 Difference]: With dead ends: 5758 [2024-11-27 23:36:43,942 INFO L226 Difference]: Without dead ends: 5758 [2024-11-27 23:36:43,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=121, Invalid=639, Unknown=12, NotChecked=220, Total=992 [2024-11-27 23:36:43,943 INFO L435 NwaCegarLoop]: 2617 mSDtfsCounter, 1888 mSDsluCounter, 26044 mSDsCounter, 0 mSdLazyCounter, 18192 mSolverCounterSat, 515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2392 SdHoareTripleChecker+Valid, 28661 SdHoareTripleChecker+Invalid, 18707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 18192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:43,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2392 Valid, 28661 Invalid, 18707 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [515 Valid, 18192 Invalid, 0 Unknown, 0 Unchecked, 17.9s Time] [2024-11-27 23:36:43,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5758 states. [2024-11-27 23:36:44,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5758 to 5755. [2024-11-27 23:36:44,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5755 states, 3465 states have (on average 1.847041847041847) internal successors, (6400), 5743 states have internal predecessors, (6400), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:36:44,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5755 states to 5755 states and 10414 transitions. [2024-11-27 23:36:44,338 INFO L78 Accepts]: Start accepts. Automaton has 5755 states and 10414 transitions. Word has length 100 [2024-11-27 23:36:44,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:44,339 INFO L471 AbstractCegarLoop]: Abstraction has 5755 states and 10414 transitions. [2024-11-27 23:36:44,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 6.238095238095238) internal successors, (131), 23 states have internal predecessors, (131), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:36:44,339 INFO L276 IsEmpty]: Start isEmpty. Operand 5755 states and 10414 transitions. [2024-11-27 23:36:44,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-27 23:36:44,340 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:44,340 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:36:44,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 23:36:44,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-27 23:36:44,541 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr89REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:36:44,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:44,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1284758501, now seen corresponding path program 1 times [2024-11-27 23:36:44,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:36:44,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910350380] [2024-11-27 23:36:44,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:44,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:36:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:45,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:36:45,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:36:45,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910350380] [2024-11-27 23:36:45,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910350380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:36:45,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700929729] [2024-11-27 23:36:45,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:45,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:36:45,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:36:45,570 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:36:45,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:36:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:45,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-27 23:36:45,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:36:45,964 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-27 23:36:45,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-27 23:36:45,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 23:36:46,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:36:46,007 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 13 treesize of output 9 [2024-11-27 23:36:46,103 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 22 treesize of output 10 [2024-11-27 23:36:46,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:36:46,213 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:36:46,213 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 23:36:46,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:36:46,312 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:36:46,312 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 23:36:46,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:36:46,380 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:36:46,380 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 23:36:46,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:36:46,406 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 31 treesize of output 13 [2024-11-27 23:36:46,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:36:46,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:36:46,429 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:36:46,502 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1643 (Array Int Int))) (<= 0 (+ 8 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1643) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_1644 (Array Int Int)) (v_ArrVal_1643 (Array Int Int))) (<= (+ 12 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1643) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1644) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-27 23:36:46,517 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1644 (Array Int Int)) (v_ArrVal_1643 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1643) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_1644) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_1643 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1643) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8)))))) is different from false [2024-11-27 23:36:46,539 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1644 (Array Int Int)) (v_ArrVal_1643 (Array Int Int)) (v_ArrVal_1642 (Array Int Int)) (v_ArrVal_1641 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1641))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1642) .cse0 v_ArrVal_1643) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 12) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_1644) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1643 (Array Int Int)) (v_ArrVal_1642 (Array Int Int)) (v_ArrVal_1641 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1642) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1641) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1643) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8))))) is different from false [2024-11-27 23:36:46,699 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1643 (Array Int Int)) (v_ArrVal_1642 (Array Int Int)) (v_ArrVal_1641 (Array Int Int)) (v_ArrVal_1650 (Array Int Int)) (v_ArrVal_1649 (Array Int Int))) (<= 0 (+ 8 (select (select (let ((.cse1 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1649))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1650) .cse0 v_ArrVal_1642) (select (select (store .cse1 .cse0 v_ArrVal_1641) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_1643))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))) (forall ((v_ArrVal_1644 (Array Int Int)) (v_ArrVal_1643 (Array Int Int)) (v_ArrVal_1642 (Array Int Int)) (v_ArrVal_1641 (Array Int Int)) (v_ArrVal_1650 (Array Int Int)) (v_ArrVal_1649 (Array Int Int))) (let ((.cse6 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1649))) (let ((.cse3 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse5 (store .cse6 .cse3 v_ArrVal_1641))) (let ((.cse4 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (<= (+ 12 (select (select (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1650) .cse3 v_ArrVal_1642) .cse4 v_ArrVal_1643) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse5 .cse4 v_ArrVal_1644) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))))) is different from false [2024-11-27 23:36:46,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700929729] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:36:46,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:36:46,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 21 [2024-11-27 23:36:46,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626605504] [2024-11-27 23:36:46,702 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:36:46,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 23:36:46,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:36:46,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 23:36:46,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=511, Unknown=11, NotChecked=196, Total=812 [2024-11-27 23:36:46,704 INFO L87 Difference]: Start difference. First operand 5755 states and 10414 transitions. Second operand has 22 states, 19 states have (on average 6.894736842105263) internal successors, (131), 22 states have internal predecessors, (131), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:37:08,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:37:08,742 INFO L93 Difference]: Finished difference Result 5757 states and 10418 transitions. [2024-11-27 23:37:08,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:37:08,743 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 6.894736842105263) internal successors, (131), 22 states have internal predecessors, (131), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 100 [2024-11-27 23:37:08,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:37:08,752 INFO L225 Difference]: With dead ends: 5757 [2024-11-27 23:37:08,752 INFO L226 Difference]: Without dead ends: 5757 [2024-11-27 23:37:08,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=152, Invalid=783, Unknown=11, NotChecked=244, Total=1190 [2024-11-27 23:37:08,753 INFO L435 NwaCegarLoop]: 2620 mSDtfsCounter, 1904 mSDsluCounter, 25419 mSDsCounter, 0 mSdLazyCounter, 13953 mSolverCounterSat, 1023 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2408 SdHoareTripleChecker+Valid, 28039 SdHoareTripleChecker+Invalid, 14976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1023 IncrementalHoareTripleChecker+Valid, 13953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:37:08,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2408 Valid, 28039 Invalid, 14976 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1023 Valid, 13953 Invalid, 0 Unknown, 0 Unchecked, 21.5s Time] [2024-11-27 23:37:08,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5757 states. [2024-11-27 23:37:09,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5757 to 5733. [2024-11-27 23:37:09,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5733 states, 3445 states have (on average 1.851088534107402) internal successors, (6377), 5723 states have internal predecessors, (6377), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 3 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-27 23:37:09,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5733 states to 5733 states and 10389 transitions. [2024-11-27 23:37:09,168 INFO L78 Accepts]: Start accepts. Automaton has 5733 states and 10389 transitions. Word has length 100 [2024-11-27 23:37:09,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:37:09,168 INFO L471 AbstractCegarLoop]: Abstraction has 5733 states and 10389 transitions. [2024-11-27 23:37:09,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 6.894736842105263) internal successors, (131), 22 states have internal predecessors, (131), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:37:09,168 INFO L276 IsEmpty]: Start isEmpty. Operand 5733 states and 10389 transitions. [2024-11-27 23:37:09,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-27 23:37:09,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:37:09,169 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:37:09,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 23:37:09,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:37:09,370 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr92REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:37:09,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:37:09,370 INFO L85 PathProgramCache]: Analyzing trace with hash 508698928, now seen corresponding path program 1 times [2024-11-27 23:37:09,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:37:09,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518376204] [2024-11-27 23:37:09,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:37:09,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:37:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:37:10,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:37:10,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:37:10,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518376204] [2024-11-27 23:37:10,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518376204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:37:10,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:37:10,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-27 23:37:10,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80981325] [2024-11-27 23:37:10,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:37:10,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:37:10,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:37:10,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:37:10,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:37:10,032 INFO L87 Difference]: Start difference. First operand 5733 states and 10389 transitions. Second operand has 16 states, 14 states have (on average 7.142857142857143) internal successors, (100), 15 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:37:20,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:37:20,101 INFO L93 Difference]: Finished difference Result 5764 states and 10426 transitions. [2024-11-27 23:37:20,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:37:20,102 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 7.142857142857143) internal successors, (100), 15 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2024-11-27 23:37:20,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:37:20,109 INFO L225 Difference]: With dead ends: 5764 [2024-11-27 23:37:20,109 INFO L226 Difference]: Without dead ends: 5764 [2024-11-27 23:37:20,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2024-11-27 23:37:20,110 INFO L435 NwaCegarLoop]: 2617 mSDtfsCounter, 1888 mSDsluCounter, 18029 mSDsCounter, 0 mSdLazyCounter, 11982 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2392 SdHoareTripleChecker+Valid, 20646 SdHoareTripleChecker+Invalid, 12495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 11982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:37:20,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2392 Valid, 20646 Invalid, 12495 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [513 Valid, 11982 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2024-11-27 23:37:20,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5764 states. [2024-11-27 23:37:20,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5764 to 5760. [2024-11-27 23:37:20,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5760 states, 3471 states have (on average 1.8455776433304523) internal successors, (6406), 5748 states have internal predecessors, (6406), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:37:20,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5760 states to 5760 states and 10420 transitions. [2024-11-27 23:37:20,617 INFO L78 Accepts]: Start accepts. Automaton has 5760 states and 10420 transitions. Word has length 102 [2024-11-27 23:37:20,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:37:20,618 INFO L471 AbstractCegarLoop]: Abstraction has 5760 states and 10420 transitions. [2024-11-27 23:37:20,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 7.142857142857143) internal successors, (100), 15 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:37:20,618 INFO L276 IsEmpty]: Start isEmpty. Operand 5760 states and 10420 transitions. [2024-11-27 23:37:20,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-27 23:37:20,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:37:20,619 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:37:20,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-27 23:37:20,620 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr93REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:37:20,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:37:20,627 INFO L85 PathProgramCache]: Analyzing trace with hash 508698929, now seen corresponding path program 1 times [2024-11-27 23:37:20,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:37:20,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003615947] [2024-11-27 23:37:20,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:37:20,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:37:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:37:21,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:37:21,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:37:21,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003615947] [2024-11-27 23:37:21,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003615947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:37:21,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:37:21,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:37:21,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476376894] [2024-11-27 23:37:21,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:37:21,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:37:21,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:37:21,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:37:21,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:37:21,485 INFO L87 Difference]: Start difference. First operand 5760 states and 10420 transitions. Second operand has 13 states, 12 states have (on average 8.333333333333334) internal successors, (100), 13 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:37:28,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:37:28,935 INFO L93 Difference]: Finished difference Result 5763 states and 10424 transitions. [2024-11-27 23:37:28,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:37:28,936 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.333333333333334) internal successors, (100), 13 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2024-11-27 23:37:28,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:37:28,944 INFO L225 Difference]: With dead ends: 5763 [2024-11-27 23:37:28,945 INFO L226 Difference]: Without dead ends: 5763 [2024-11-27 23:37:28,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:37:28,945 INFO L435 NwaCegarLoop]: 2621 mSDtfsCounter, 1905 mSDsluCounter, 11615 mSDsCounter, 0 mSdLazyCounter, 6557 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 14236 SdHoareTripleChecker+Invalid, 7069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 6557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:37:28,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2409 Valid, 14236 Invalid, 7069 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [512 Valid, 6557 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-27 23:37:28,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5763 states. [2024-11-27 23:37:29,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5763 to 5760. [2024-11-27 23:37:29,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5760 states, 3471 states have (on average 1.8450014405070585) internal successors, (6404), 5748 states have internal predecessors, (6404), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:37:29,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5760 states to 5760 states and 10418 transitions. [2024-11-27 23:37:29,511 INFO L78 Accepts]: Start accepts. Automaton has 5760 states and 10418 transitions. Word has length 102 [2024-11-27 23:37:29,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:37:29,511 INFO L471 AbstractCegarLoop]: Abstraction has 5760 states and 10418 transitions. [2024-11-27 23:37:29,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.333333333333334) internal successors, (100), 13 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:37:29,511 INFO L276 IsEmpty]: Start isEmpty. Operand 5760 states and 10418 transitions. [2024-11-27 23:37:29,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-27 23:37:29,511 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:37:29,512 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:37:29,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-27 23:37:29,512 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr92REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:37:29,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:37:29,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1787559224, now seen corresponding path program 1 times [2024-11-27 23:37:29,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:37:29,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119296754] [2024-11-27 23:37:29,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:37:29,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:37:29,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:37:30,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:37:30,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:37:30,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119296754] [2024-11-27 23:37:30,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119296754] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:37:30,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595452955] [2024-11-27 23:37:30,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:37:30,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:37:30,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:37:30,219 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:37:30,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 23:37:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:37:30,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-27 23:37:30,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:37:30,657 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 23:37:30,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-27 23:37:30,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:37:30,775 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 22 treesize of output 10 [2024-11-27 23:37:30,931 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:30,931 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:37:31,022 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:31,022 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:37:31,082 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:31,082 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:37:31,151 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:31,152 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:37:31,168 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 31 treesize of output 13 [2024-11-27 23:37:31,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:37:31,201 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:37:31,211 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1980 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_1980) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2024-11-27 23:37:31,217 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1980 (Array Int Int))) (= (select |c_#valid| (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_1980) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) 1)) is different from false [2024-11-27 23:37:31,343 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1978 (Array Int Int)) (v_ArrVal_1980 (Array Int Int)) (v_ArrVal_1979 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_1978))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1979)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1980)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2024-11-27 23:37:31,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595452955] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:37:31,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:37:31,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 25 [2024-11-27 23:37:31,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685729443] [2024-11-27 23:37:31,507 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:37:31,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-27 23:37:31,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:37:31,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-27 23:37:31,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=690, Unknown=63, NotChecked=174, Total=1056 [2024-11-27 23:37:31,508 INFO L87 Difference]: Start difference. First operand 5760 states and 10418 transitions. Second operand has 26 states, 23 states have (on average 5.956521739130435) internal successors, (137), 25 states have internal predecessors, (137), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:37:43,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:37:43,350 INFO L93 Difference]: Finished difference Result 5762 states and 10422 transitions. [2024-11-27 23:37:43,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:37:43,351 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 5.956521739130435) internal successors, (137), 25 states have internal predecessors, (137), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 103 [2024-11-27 23:37:43,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:37:43,359 INFO L225 Difference]: With dead ends: 5762 [2024-11-27 23:37:43,359 INFO L226 Difference]: Without dead ends: 5762 [2024-11-27 23:37:43,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=152, Invalid=849, Unknown=67, NotChecked=192, Total=1260 [2024-11-27 23:37:43,360 INFO L435 NwaCegarLoop]: 2616 mSDtfsCounter, 1869 mSDsluCounter, 20718 mSDsCounter, 0 mSdLazyCounter, 14660 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2373 SdHoareTripleChecker+Valid, 23334 SdHoareTripleChecker+Invalid, 15177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 14660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:37:43,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2373 Valid, 23334 Invalid, 15177 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [517 Valid, 14660 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2024-11-27 23:37:43,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5762 states. [2024-11-27 23:37:43,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5762 to 5759. [2024-11-27 23:37:43,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5759 states, 3471 states have (on average 1.8444252376836647) internal successors, (6402), 5747 states have internal predecessors, (6402), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:37:43,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5759 states to 5759 states and 10416 transitions. [2024-11-27 23:37:43,810 INFO L78 Accepts]: Start accepts. Automaton has 5759 states and 10416 transitions. Word has length 103 [2024-11-27 23:37:43,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:37:43,810 INFO L471 AbstractCegarLoop]: Abstraction has 5759 states and 10416 transitions. [2024-11-27 23:37:43,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 5.956521739130435) internal successors, (137), 25 states have internal predecessors, (137), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:37:43,811 INFO L276 IsEmpty]: Start isEmpty. Operand 5759 states and 10416 transitions. [2024-11-27 23:37:43,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-27 23:37:43,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:37:43,812 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:37:43,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 23:37:44,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-27 23:37:44,012 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr93REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:37:44,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:37:44,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1787559225, now seen corresponding path program 1 times [2024-11-27 23:37:44,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:37:44,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187486300] [2024-11-27 23:37:44,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:37:44,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:37:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:37:45,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:37:45,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:37:45,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187486300] [2024-11-27 23:37:45,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187486300] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:37:45,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821137419] [2024-11-27 23:37:45,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:37:45,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:37:45,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:37:45,020 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:37:45,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 23:37:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:37:45,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-27 23:37:45,342 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:37:45,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 1 [2024-11-27 23:37:45,444 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-27 23:37:45,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-27 23:37:45,456 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 13 treesize of output 9 [2024-11-27 23:37:45,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:37:45,535 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 22 treesize of output 10 [2024-11-27 23:37:45,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:37:45,660 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:45,661 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 23:37:45,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:37:45,746 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:45,746 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 23:37:45,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:37:45,821 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:45,821 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 23:37:45,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:37:45,886 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:37:45,886 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 23:37:45,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:37:45,908 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 31 treesize of output 13 [2024-11-27 23:37:45,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:37:45,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:37:45,918 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:37:45,991 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2163 (Array Int Int)) (v_ArrVal_2162 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_2163) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 24) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_2162) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_2163 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_2163) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 20))))) is different from false [2024-11-27 23:37:46,003 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_2163 (Array Int Int)) (v_ArrVal_2162 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_2163) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 24) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_2162) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_2163 (Array Int Int))) (<= 0 (+ 20 (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_2163) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))) is different from false [2024-11-27 23:37:46,027 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2160 (Array Int Int)) (v_ArrVal_2163 (Array Int Int)) (v_ArrVal_2162 (Array Int Int)) (v_ArrVal_2161 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_2161))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_2160) .cse0 v_ArrVal_2163) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 24) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_2162) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_2160 (Array Int Int)) (v_ArrVal_2163 (Array Int Int)) (v_ArrVal_2161 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_2160) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_2161) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2163) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 20))))) is different from false [2024-11-27 23:37:46,165 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2160 (Array Int Int)) (v_ArrVal_2159 (Array Int Int)) (v_ArrVal_2158 (Array Int Int)) (v_ArrVal_2163 (Array Int Int)) (v_ArrVal_2161 (Array Int Int))) (<= 0 (+ (select (select (let ((.cse1 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_2159))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_2158) .cse0 v_ArrVal_2160) (select (select (store .cse1 .cse0 v_ArrVal_2161) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_2163))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 20))) (forall ((v_ArrVal_2160 (Array Int Int)) (v_ArrVal_2159 (Array Int Int)) (v_ArrVal_2158 (Array Int Int)) (v_ArrVal_2163 (Array Int Int)) (v_ArrVal_2162 (Array Int Int)) (v_ArrVal_2161 (Array Int Int))) (let ((.cse6 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_2159))) (let ((.cse3 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse5 (store .cse6 .cse3 v_ArrVal_2161))) (let ((.cse4 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (<= (+ (select (select (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_2158) .cse3 v_ArrVal_2160) .cse4 v_ArrVal_2163) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 24) (select |c_#length| (select (select (store .cse5 .cse4 v_ArrVal_2162) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))))) is different from false [2024-11-27 23:37:46,212 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (and (forall ((v_ArrVal_2160 (Array Int Int)) (v_ArrVal_2159 (Array Int Int)) (v_ArrVal_2158 (Array Int Int)) (v_ArrVal_2163 (Array Int Int)) (v_ArrVal_2161 (Array Int Int))) (<= 0 (+ (select (select (let ((.cse2 (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_2159))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_2158) .cse1 v_ArrVal_2160) (select (select (store .cse2 .cse1 v_ArrVal_2161) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_2163))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 20))) (forall ((v_ArrVal_2160 (Array Int Int)) (v_ArrVal_2159 (Array Int Int)) (v_ArrVal_2158 (Array Int Int)) (v_ArrVal_2163 (Array Int Int)) (v_ArrVal_2162 (Array Int Int)) (v_ArrVal_2161 (Array Int Int))) (let ((.cse7 (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_2159))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_2161))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (<= (+ (select (select (store (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_2158) .cse4 v_ArrVal_2160) .cse5 v_ArrVal_2163) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 24) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_2162) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))))))))))) is different from false [2024-11-27 23:37:46,315 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2160 (Array Int Int)) (v_ArrVal_2159 (Array Int Int)) (v_ArrVal_2169 (Array Int Int)) (v_ArrVal_2158 (Array Int Int)) (v_ArrVal_2168 (Array Int Int)) (v_ArrVal_2163 (Array Int Int)) (v_ArrVal_2161 (Array Int Int))) (<= 0 (+ (select (select (let ((.cse4 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2169))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse2 (store .cse4 .cse0 v_ArrVal_2159))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2168) .cse0 v_ArrVal_2158) .cse1 v_ArrVal_2160) (select (select (store .cse2 .cse1 v_ArrVal_2161) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_2163))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 20))) (forall ((v_ArrVal_2160 (Array Int Int)) (v_ArrVal_2159 (Array Int Int)) (v_ArrVal_2169 (Array Int Int)) (v_ArrVal_2158 (Array Int Int)) (v_ArrVal_2168 (Array Int Int)) (v_ArrVal_2163 (Array Int Int)) (v_ArrVal_2162 (Array Int Int)) (v_ArrVal_2161 (Array Int Int))) (let ((.cse10 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2169))) (let ((.cse5 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse9 (store .cse10 .cse5 v_ArrVal_2159))) (let ((.cse6 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse8 (store .cse9 .cse6 v_ArrVal_2161))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (<= (+ (select (select (store (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2168) .cse5 v_ArrVal_2158) .cse6 v_ArrVal_2160) .cse7 v_ArrVal_2163) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 24) (select |c_#length| (select (select (store .cse8 .cse7 v_ArrVal_2162) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))))) is different from false [2024-11-27 23:37:46,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821137419] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:37:46,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:37:46,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 20 [2024-11-27 23:37:46,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868130983] [2024-11-27 23:37:46,319 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:37:46,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 23:37:46,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:37:46,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 23:37:46,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=461, Unknown=12, NotChecked=294, Total=870 [2024-11-27 23:37:46,321 INFO L87 Difference]: Start difference. First operand 5759 states and 10416 transitions. Second operand has 21 states, 18 states have (on average 7.111111111111111) internal successors, (128), 21 states have internal predecessors, (128), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:37:54,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:37:54,155 INFO L93 Difference]: Finished difference Result 5761 states and 10420 transitions. [2024-11-27 23:37:54,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 23:37:54,155 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 7.111111111111111) internal successors, (128), 21 states have internal predecessors, (128), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 103 [2024-11-27 23:37:54,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:37:54,162 INFO L225 Difference]: With dead ends: 5761 [2024-11-27 23:37:54,162 INFO L226 Difference]: Without dead ends: 5761 [2024-11-27 23:37:54,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=164, Invalid=778, Unknown=12, NotChecked=378, Total=1332 [2024-11-27 23:37:54,163 INFO L435 NwaCegarLoop]: 2619 mSDtfsCounter, 1900 mSDsluCounter, 13202 mSDsCounter, 0 mSdLazyCounter, 7908 mSolverCounterSat, 1022 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2404 SdHoareTripleChecker+Valid, 15821 SdHoareTripleChecker+Invalid, 8930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1022 IncrementalHoareTripleChecker+Valid, 7908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:37:54,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2404 Valid, 15821 Invalid, 8930 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1022 Valid, 7908 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-27 23:37:54,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5761 states. [2024-11-27 23:37:54,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5761 to 5731. [2024-11-27 23:37:54,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5731 states, 3445 states have (on average 1.8499274310595066) internal successors, (6373), 5721 states have internal predecessors, (6373), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 3 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-27 23:37:54,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5731 states to 5731 states and 10385 transitions. [2024-11-27 23:37:54,586 INFO L78 Accepts]: Start accepts. Automaton has 5731 states and 10385 transitions. Word has length 103 [2024-11-27 23:37:54,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:37:54,586 INFO L471 AbstractCegarLoop]: Abstraction has 5731 states and 10385 transitions. [2024-11-27 23:37:54,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 7.111111111111111) internal successors, (128), 21 states have internal predecessors, (128), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:37:54,586 INFO L276 IsEmpty]: Start isEmpty. Operand 5731 states and 10385 transitions. [2024-11-27 23:37:54,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-27 23:37:54,587 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:37:54,587 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:37:54,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 23:37:54,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-27 23:37:54,787 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr96REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:37:54,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:37:54,791 INFO L85 PathProgramCache]: Analyzing trace with hash 2050602354, now seen corresponding path program 1 times [2024-11-27 23:37:54,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:37:54,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152419152] [2024-11-27 23:37:54,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:37:54,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:37:54,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:37:55,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:37:55,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:37:55,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152419152] [2024-11-27 23:37:55,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152419152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:37:55,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:37:55,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-27 23:37:55,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493035990] [2024-11-27 23:37:55,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:37:55,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 23:37:55,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:37:55,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 23:37:55,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:37:55,630 INFO L87 Difference]: Start difference. First operand 5731 states and 10385 transitions. Second operand has 16 states, 14 states have (on average 7.428571428571429) internal successors, (104), 15 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:38:08,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:38:08,258 INFO L93 Difference]: Finished difference Result 5770 states and 10430 transitions. [2024-11-27 23:38:08,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:38:08,259 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 7.428571428571429) internal successors, (104), 15 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2024-11-27 23:38:08,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:38:08,266 INFO L225 Difference]: With dead ends: 5770 [2024-11-27 23:38:08,266 INFO L226 Difference]: Without dead ends: 5770 [2024-11-27 23:38:08,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2024-11-27 23:38:08,267 INFO L435 NwaCegarLoop]: 2615 mSDtfsCounter, 1891 mSDsluCounter, 16485 mSDsCounter, 0 mSdLazyCounter, 14003 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 19100 SdHoareTripleChecker+Invalid, 14520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 14003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:38:08,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2395 Valid, 19100 Invalid, 14520 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [517 Valid, 14003 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2024-11-27 23:38:08,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5770 states. [2024-11-27 23:38:08,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5770 to 5766. [2024-11-27 23:38:08,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5766 states, 3479 states have (on average 1.8424834722621444) internal successors, (6410), 5754 states have internal predecessors, (6410), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:38:08,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5766 states to 5766 states and 10424 transitions. [2024-11-27 23:38:08,750 INFO L78 Accepts]: Start accepts. Automaton has 5766 states and 10424 transitions. Word has length 106 [2024-11-27 23:38:08,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:38:08,751 INFO L471 AbstractCegarLoop]: Abstraction has 5766 states and 10424 transitions. [2024-11-27 23:38:08,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 7.428571428571429) internal successors, (104), 15 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:38:08,751 INFO L276 IsEmpty]: Start isEmpty. Operand 5766 states and 10424 transitions. [2024-11-27 23:38:08,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-27 23:38:08,751 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:38:08,751 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:08,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-27 23:38:08,752 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr97REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:38:08,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:08,752 INFO L85 PathProgramCache]: Analyzing trace with hash 2050602355, now seen corresponding path program 1 times [2024-11-27 23:38:08,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:08,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272477170] [2024-11-27 23:38:08,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:08,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:09,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:09,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:09,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272477170] [2024-11-27 23:38:09,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272477170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:09,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:38:09,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-27 23:38:09,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563387709] [2024-11-27 23:38:09,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:09,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 23:38:09,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:09,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 23:38:09,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:38:09,793 INFO L87 Difference]: Start difference. First operand 5766 states and 10424 transitions. Second operand has 18 states, 16 states have (on average 6.5) internal successors, (104), 17 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:38:30,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:38:30,354 INFO L93 Difference]: Finished difference Result 5769 states and 10428 transitions. [2024-11-27 23:38:30,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:38:30,354 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 6.5) internal successors, (104), 17 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 106 [2024-11-27 23:38:30,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:38:30,362 INFO L225 Difference]: With dead ends: 5769 [2024-11-27 23:38:30,362 INFO L226 Difference]: Without dead ends: 5769 [2024-11-27 23:38:30,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2024-11-27 23:38:30,363 INFO L435 NwaCegarLoop]: 2617 mSDtfsCounter, 1887 mSDsluCounter, 20029 mSDsCounter, 0 mSdLazyCounter, 16400 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2391 SdHoareTripleChecker+Valid, 22646 SdHoareTripleChecker+Invalid, 16916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 16400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:38:30,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2391 Valid, 22646 Invalid, 16916 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [516 Valid, 16400 Invalid, 0 Unknown, 0 Unchecked, 20.0s Time] [2024-11-27 23:38:30,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5769 states. [2024-11-27 23:38:30,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5769 to 5766. [2024-11-27 23:38:30,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5766 states, 3479 states have (on average 1.841908594423685) internal successors, (6408), 5754 states have internal predecessors, (6408), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:38:30,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5766 states to 5766 states and 10422 transitions. [2024-11-27 23:38:30,744 INFO L78 Accepts]: Start accepts. Automaton has 5766 states and 10422 transitions. Word has length 106 [2024-11-27 23:38:30,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:38:30,744 INFO L471 AbstractCegarLoop]: Abstraction has 5766 states and 10422 transitions. [2024-11-27 23:38:30,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 6.5) internal successors, (104), 17 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:38:30,745 INFO L276 IsEmpty]: Start isEmpty. Operand 5766 states and 10422 transitions. [2024-11-27 23:38:30,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-27 23:38:30,745 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:38:30,745 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:30,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-27 23:38:30,745 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr96REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:38:30,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:30,754 INFO L85 PathProgramCache]: Analyzing trace with hash 513166714, now seen corresponding path program 1 times [2024-11-27 23:38:30,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:30,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518886561] [2024-11-27 23:38:30,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:30,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:30,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:31,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:31,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:31,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518886561] [2024-11-27 23:38:31,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518886561] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:31,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391860261] [2024-11-27 23:38:31,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:31,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:31,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:31,569 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:31,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 23:38:31,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:31,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-27 23:38:31,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:38:32,012 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 23:38:32,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-27 23:38:32,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:38:32,147 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 22 treesize of output 10 [2024-11-27 23:38:32,285 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:38:32,285 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:38:32,372 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:38:32,372 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:38:32,448 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:38:32,448 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:38:32,523 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:38:32,523 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:38:32,592 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:38:32,592 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-27 23:38:32,606 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 31 treesize of output 13 [2024-11-27 23:38:32,672 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-27 23:38:32,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-27 23:38:32,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:32,680 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:38:33,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391860261] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:33,566 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:38:33,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 26 [2024-11-27 23:38:33,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780318603] [2024-11-27 23:38:33,567 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:38:33,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-27 23:38:33,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:33,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-27 23:38:33,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1160, Unknown=55, NotChecked=0, Total=1406 [2024-11-27 23:38:33,568 INFO L87 Difference]: Start difference. First operand 5766 states and 10422 transitions. Second operand has 27 states, 24 states have (on average 6.041666666666667) internal successors, (145), 26 states have internal predecessors, (145), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:38:49,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:38:49,503 INFO L93 Difference]: Finished difference Result 5768 states and 10426 transitions. [2024-11-27 23:38:49,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:38:49,504 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 6.041666666666667) internal successors, (145), 26 states have internal predecessors, (145), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 107 [2024-11-27 23:38:49,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:38:49,510 INFO L225 Difference]: With dead ends: 5768 [2024-11-27 23:38:49,511 INFO L226 Difference]: Without dead ends: 5768 [2024-11-27 23:38:49,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=217, Invalid=1368, Unknown=55, NotChecked=0, Total=1640 [2024-11-27 23:38:49,511 INFO L435 NwaCegarLoop]: 2615 mSDtfsCounter, 1858 mSDsluCounter, 19730 mSDsCounter, 0 mSdLazyCounter, 16225 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2362 SdHoareTripleChecker+Valid, 22345 SdHoareTripleChecker+Invalid, 16742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 16225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:38:49,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2362 Valid, 22345 Invalid, 16742 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [517 Valid, 16225 Invalid, 0 Unknown, 0 Unchecked, 15.5s Time] [2024-11-27 23:38:49,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5768 states. [2024-11-27 23:38:49,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5768 to 5765. [2024-11-27 23:38:49,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5765 states, 3479 states have (on average 1.8413337165852257) internal successors, (6406), 5753 states have internal predecessors, (6406), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:38:49,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5765 states to 5765 states and 10420 transitions. [2024-11-27 23:38:49,893 INFO L78 Accepts]: Start accepts. Automaton has 5765 states and 10420 transitions. Word has length 107 [2024-11-27 23:38:49,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:38:49,893 INFO L471 AbstractCegarLoop]: Abstraction has 5765 states and 10420 transitions. [2024-11-27 23:38:49,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 6.041666666666667) internal successors, (145), 26 states have internal predecessors, (145), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:38:49,893 INFO L276 IsEmpty]: Start isEmpty. Operand 5765 states and 10420 transitions. [2024-11-27 23:38:49,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-27 23:38:49,894 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:38:49,894 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:49,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 23:38:50,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:50,095 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr97REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:38:50,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:50,101 INFO L85 PathProgramCache]: Analyzing trace with hash 513166715, now seen corresponding path program 1 times [2024-11-27 23:38:50,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:50,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547825306] [2024-11-27 23:38:50,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:50,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:51,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:51,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:51,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547825306] [2024-11-27 23:38:51,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547825306] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:51,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22648398] [2024-11-27 23:38:51,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:51,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:51,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:51,304 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:51,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 23:38:51,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:51,635 INFO L256 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-27 23:38:51,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:38:51,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 1 [2024-11-27 23:38:51,764 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 23:38:51,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-27 23:38:51,819 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 13 treesize of output 9 [2024-11-27 23:38:51,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:38:51,951 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 33 treesize of output 15 [2024-11-27 23:38:51,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:38:52,138 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:38:52,139 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:38:52,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:38:52,274 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:38:52,274 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:38:52,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:38:52,383 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:38:52,383 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:38:52,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:38:52,481 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:38:52,481 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:38:52,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:38:52,593 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:38:52,593 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:38:52,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:38:52,625 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 42 treesize of output 18 [2024-11-27 23:38:52,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:38:52,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:38:52,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-27 23:38:52,702 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-11-27 23:38:52,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-11-27 23:38:52,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:38:52,735 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:38:53,213 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (or (forall ((v_ArrVal_2735 (Array Int Int)) (v_ArrVal_2733 (Array Int Int)) (v_ArrVal_2732 (Array Int Int))) (< 0 (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_2732) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_2733) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_2735) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 1))) (forall ((|v_ULTIMATE.start_main_#t~malloc61#1.base_7| Int)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_7|) 0)))) (forall ((v_ArrVal_2735 (Array Int Int)) (v_ArrVal_2734 (Array Int Int)) (v_ArrVal_2733 (Array Int Int)) (v_ArrVal_2732 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc61#1.base_7| Int)) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_7|) 0)) (forall ((v_ArrVal_2736 Int)) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_2733))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_2732) .cse1 v_ArrVal_2735) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 4) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc61#1.base_7| v_ArrVal_2736) (select (select (store .cse2 .cse1 v_ArrVal_2734) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))))))) is different from false [2024-11-27 23:39:05,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22648398] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:39:05,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:39:05,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14] total 29 [2024-11-27 23:39:05,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868105631] [2024-11-27 23:39:05,673 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:39:05,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-27 23:39:05,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:39:05,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-27 23:39:05,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1409, Unknown=54, NotChecked=78, Total=1722 [2024-11-27 23:39:05,675 INFO L87 Difference]: Start difference. First operand 5765 states and 10420 transitions. Second operand has 30 states, 27 states have (on average 5.37037037037037) internal successors, (145), 29 states have internal predecessors, (145), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:41:42,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:41:42,325 INFO L93 Difference]: Finished difference Result 5767 states and 10424 transitions. [2024-11-27 23:41:42,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:41:42,326 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 27 states have (on average 5.37037037037037) internal successors, (145), 29 states have internal predecessors, (145), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 107 [2024-11-27 23:41:42,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:41:42,339 INFO L225 Difference]: With dead ends: 5767 [2024-11-27 23:41:42,339 INFO L226 Difference]: Without dead ends: 5767 [2024-11-27 23:41:42,340 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 658 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=308, Invalid=2192, Unknown=54, NotChecked=98, Total=2652 [2024-11-27 23:41:42,340 INFO L435 NwaCegarLoop]: 2615 mSDtfsCounter, 1867 mSDsluCounter, 28847 mSDsCounter, 0 mSdLazyCounter, 23647 mSolverCounterSat, 523 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 149.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2371 SdHoareTripleChecker+Valid, 31462 SdHoareTripleChecker+Invalid, 24170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 23647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 153.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:41:42,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2371 Valid, 31462 Invalid, 24170 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [523 Valid, 23647 Invalid, 0 Unknown, 0 Unchecked, 153.5s Time] [2024-11-27 23:41:42,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5767 states. [2024-11-27 23:41:42,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5767 to 5729. [2024-11-27 23:41:42,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5729 states, 3445 states have (on average 1.8487663280116111) internal successors, (6369), 5719 states have internal predecessors, (6369), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 3 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-27 23:41:42,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5729 states to 5729 states and 10381 transitions. [2024-11-27 23:41:42,707 INFO L78 Accepts]: Start accepts. Automaton has 5729 states and 10381 transitions. Word has length 107 [2024-11-27 23:41:42,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:41:42,708 INFO L471 AbstractCegarLoop]: Abstraction has 5729 states and 10381 transitions. [2024-11-27 23:41:42,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 27 states have (on average 5.37037037037037) internal successors, (145), 29 states have internal predecessors, (145), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:41:42,708 INFO L276 IsEmpty]: Start isEmpty. Operand 5729 states and 10381 transitions. [2024-11-27 23:41:42,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-27 23:41:42,708 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:41:42,708 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:41:42,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 23:41:42,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-27 23:41:42,909 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr100REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:41:42,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:41:42,909 INFO L85 PathProgramCache]: Analyzing trace with hash -2119415015, now seen corresponding path program 1 times [2024-11-27 23:41:42,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:41:42,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158240101] [2024-11-27 23:41:42,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:41:42,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:41:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:41:44,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:41:44,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:41:44,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158240101] [2024-11-27 23:41:44,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158240101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:41:44,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:41:44,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-27 23:41:44,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836175637] [2024-11-27 23:41:44,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:41:44,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 23:41:44,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:41:44,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 23:41:44,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:41:44,693 INFO L87 Difference]: Start difference. First operand 5729 states and 10381 transitions. Second operand has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 15 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:42:50,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:42:50,169 INFO L93 Difference]: Finished difference Result 5774 states and 10432 transitions. [2024-11-27 23:42:50,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:42:50,169 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 15 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2024-11-27 23:42:50,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:42:50,178 INFO L225 Difference]: With dead ends: 5774 [2024-11-27 23:42:50,178 INFO L226 Difference]: Without dead ends: 5774 [2024-11-27 23:42:50,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=94, Invalid=458, Unknown=0, NotChecked=0, Total=552 [2024-11-27 23:42:50,179 INFO L435 NwaCegarLoop]: 2618 mSDtfsCounter, 1917 mSDsluCounter, 21135 mSDsCounter, 0 mSdLazyCounter, 11236 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2421 SdHoareTripleChecker+Valid, 23753 SdHoareTripleChecker+Invalid, 11754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 11236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:42:50,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2421 Valid, 23753 Invalid, 11754 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [518 Valid, 11236 Invalid, 0 Unknown, 0 Unchecked, 64.2s Time] [2024-11-27 23:42:50,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5774 states. [2024-11-27 23:42:50,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5774 to 5770. [2024-11-27 23:42:50,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5770 states, 3485 states have (on average 1.8398852223816355) internal successors, (6412), 5758 states have internal predecessors, (6412), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:42:50,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5770 states to 5770 states and 10426 transitions. [2024-11-27 23:42:50,682 INFO L78 Accepts]: Start accepts. Automaton has 5770 states and 10426 transitions. Word has length 109 [2024-11-27 23:42:50,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:42:50,682 INFO L471 AbstractCegarLoop]: Abstraction has 5770 states and 10426 transitions. [2024-11-27 23:42:50,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.642857142857143) internal successors, (107), 15 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:42:50,683 INFO L276 IsEmpty]: Start isEmpty. Operand 5770 states and 10426 transitions. [2024-11-27 23:42:50,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-27 23:42:50,683 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:42:50,683 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:42:50,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-27 23:42:50,684 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr101REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:42:50,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:42:50,684 INFO L85 PathProgramCache]: Analyzing trace with hash -2119415014, now seen corresponding path program 1 times [2024-11-27 23:42:50,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:42:50,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471075701] [2024-11-27 23:42:50,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:42:50,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:42:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:42:54,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:42:54,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:42:54,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471075701] [2024-11-27 23:42:54,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471075701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:42:54,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:42:54,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-27 23:42:54,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938864945] [2024-11-27 23:42:54,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:42:54,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 23:42:54,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:42:54,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 23:42:54,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:42:54,154 INFO L87 Difference]: Start difference. First operand 5770 states and 10426 transitions. Second operand has 19 states, 17 states have (on average 6.294117647058823) internal successors, (107), 18 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:44:14,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:44:14,712 INFO L93 Difference]: Finished difference Result 5773 states and 10430 transitions. [2024-11-27 23:44:14,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:44:14,713 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 6.294117647058823) internal successors, (107), 18 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2024-11-27 23:44:14,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:44:14,721 INFO L225 Difference]: With dead ends: 5773 [2024-11-27 23:44:14,721 INFO L226 Difference]: Without dead ends: 5773 [2024-11-27 23:44:14,721 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=149, Invalid=721, Unknown=0, NotChecked=0, Total=870 [2024-11-27 23:44:14,722 INFO L435 NwaCegarLoop]: 2616 mSDtfsCounter, 1890 mSDsluCounter, 17117 mSDsCounter, 0 mSdLazyCounter, 12895 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2394 SdHoareTripleChecker+Valid, 19733 SdHoareTripleChecker+Invalid, 13412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 12895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:44:14,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2394 Valid, 19733 Invalid, 13412 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [517 Valid, 12895 Invalid, 0 Unknown, 0 Unchecked, 78.7s Time] [2024-11-27 23:44:14,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5773 states. [2024-11-27 23:44:15,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5773 to 5770. [2024-11-27 23:44:15,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5770 states, 3485 states have (on average 1.8393113342898135) internal successors, (6410), 5758 states have internal predecessors, (6410), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:44:15,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5770 states to 5770 states and 10424 transitions. [2024-11-27 23:44:15,139 INFO L78 Accepts]: Start accepts. Automaton has 5770 states and 10424 transitions. Word has length 109 [2024-11-27 23:44:15,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:44:15,139 INFO L471 AbstractCegarLoop]: Abstraction has 5770 states and 10424 transitions. [2024-11-27 23:44:15,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 6.294117647058823) internal successors, (107), 18 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:44:15,139 INFO L276 IsEmpty]: Start isEmpty. Operand 5770 states and 10424 transitions. [2024-11-27 23:44:15,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-27 23:44:15,140 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:44:15,140 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:44:15,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-27 23:44:15,140 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr100REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:44:15,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:44:15,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1961645585, now seen corresponding path program 1 times [2024-11-27 23:44:15,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:44:15,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610934721] [2024-11-27 23:44:15,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:44:15,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:44:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:44:15,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:44:15,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:44:15,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610934721] [2024-11-27 23:44:15,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610934721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:44:15,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:44:15,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:44:15,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178009754] [2024-11-27 23:44:15,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:44:15,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:44:15,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:44:15,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:44:15,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:44:15,900 INFO L87 Difference]: Start difference. First operand 5770 states and 10424 transitions. Second operand has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:44:20,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:44:20,680 INFO L93 Difference]: Finished difference Result 5769 states and 10422 transitions. [2024-11-27 23:44:20,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:44:20,681 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2024-11-27 23:44:20,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:44:20,691 INFO L225 Difference]: With dead ends: 5769 [2024-11-27 23:44:20,692 INFO L226 Difference]: Without dead ends: 5769 [2024-11-27 23:44:20,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:44:20,692 INFO L435 NwaCegarLoop]: 2954 mSDtfsCounter, 2 mSDsluCounter, 8071 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11025 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:44:20,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11025 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-27 23:44:20,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5769 states. [2024-11-27 23:44:21,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5769 to 5769. [2024-11-27 23:44:21,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5769 states, 3485 states have (on average 1.8387374461979913) internal successors, (6408), 5757 states have internal predecessors, (6408), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-27 23:44:21,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5769 states to 5769 states and 10422 transitions. [2024-11-27 23:44:21,157 INFO L78 Accepts]: Start accepts. Automaton has 5769 states and 10422 transitions. Word has length 110 [2024-11-27 23:44:21,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:44:21,157 INFO L471 AbstractCegarLoop]: Abstraction has 5769 states and 10422 transitions. [2024-11-27 23:44:21,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:44:21,157 INFO L276 IsEmpty]: Start isEmpty. Operand 5769 states and 10422 transitions. [2024-11-27 23:44:21,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-27 23:44:21,158 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:44:21,158 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:44:21,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-27 23:44:21,158 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr101REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-27 23:44:21,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:44:21,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1961645586, now seen corresponding path program 1 times [2024-11-27 23:44:21,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:44:21,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612071215] [2024-11-27 23:44:21,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:44:21,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:44:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:44:25,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:44:25,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:44:25,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612071215] [2024-11-27 23:44:25,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612071215] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:44:25,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796315313] [2024-11-27 23:44:25,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:44:25,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:44:25,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:44:25,156 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:44:25,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1b003f-57d4-4912-b4c9-9545074194a2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 23:44:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:44:25,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-27 23:44:25,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:44:26,374 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 23:44:26,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-27 23:44:26,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-27 23:44:26,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-27 23:44:26,749 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 13 treesize of output 9 [2024-11-27 23:44:27,493 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 33 treesize of output 15 [2024-11-27 23:44:27,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:44:28,658 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:44:28,659 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:44:28,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:44:29,340 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:44:29,340 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:44:29,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:44:29,866 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:44:29,867 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:44:29,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:44:30,404 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:44:30,404 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:44:30,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:44:30,996 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:44:30,996 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2024-11-27 23:44:31,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:44:31,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:44:31,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-27 23:44:31,657 INFO L349 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2024-11-27 23:44:31,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 24 [2024-11-27 23:44:31,994 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-27 23:44:31,994 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-27 23:44:32,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-27 23:44:32,262 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 31 treesize of output 13 [2024-11-27 23:44:32,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-27 23:44:32,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:44:32,288 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:45:07,621 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_3230 (Array Int Int)) (v_ArrVal_3231 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc61#1.base_9| Int) (v_ArrVal_3232 (Array Int Int)) (v_ArrVal_3233 (Array Int Int)) (v_ArrVal_3234 (Array Int Int)) (v_ArrVal_3235 (Array Int Int)) (v_ArrVal_3228 (Array Int Int)) (v_ArrVal_3229 (Array Int Int))) (or (forall ((v_ArrVal_3236 Int) (v_ArrVal_3237 (Array Int Int)) (v_ArrVal_3238 (Array Int Int))) (let ((.cse8 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_3228))) (let ((.cse0 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse7 (store .cse8 .cse0 v_ArrVal_3230))) (let ((.cse1 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse6 (store .cse7 .cse1 v_ArrVal_3232))) (let ((.cse2 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse5 (store .cse6 .cse2 v_ArrVal_3235))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (<= (+ (select (select (store (store (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_3229) .cse0 v_ArrVal_3231) .cse1 v_ArrVal_3233) .cse2 v_ArrVal_3234) .cse3 v_ArrVal_3238) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 44) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc61#1.base_9| v_ArrVal_3236) (select (select (store .cse5 .cse3 v_ArrVal_3237) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))))))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_9|) 0)))) (or (forall ((v_ArrVal_3230 (Array Int Int)) (v_ArrVal_3231 (Array Int Int)) (v_ArrVal_3232 (Array Int Int)) (v_ArrVal_3233 (Array Int Int)) (v_ArrVal_3234 (Array Int Int)) (v_ArrVal_3235 (Array Int Int)) (v_ArrVal_3238 (Array Int Int)) (v_ArrVal_3228 (Array Int Int)) (v_ArrVal_3229 (Array Int Int))) (<= 0 (+ (select (select (let ((.cse14 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_3228))) (let ((.cse9 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse13 (store .cse14 .cse9 v_ArrVal_3230))) (let ((.cse10 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse12 (store .cse13 .cse10 v_ArrVal_3232))) (let ((.cse11 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem56#1.base| v_ArrVal_3229) .cse9 v_ArrVal_3231) .cse10 v_ArrVal_3233) .cse11 v_ArrVal_3234) (select (select (store .cse12 .cse11 v_ArrVal_3235) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_3238))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 40))) (forall ((|v_ULTIMATE.start_main_#t~malloc61#1.base_9| Int)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_9|) 0)))))) is different from false [2024-11-27 23:45:07,737 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse5 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (and (forall ((v_ArrVal_3230 (Array Int Int)) (v_ArrVal_3231 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc61#1.base_9| Int) (v_ArrVal_3232 (Array Int Int)) (v_ArrVal_3233 (Array Int Int)) (v_ArrVal_3234 (Array Int Int)) (v_ArrVal_3235 (Array Int Int)) (v_ArrVal_3228 (Array Int Int)) (v_ArrVal_3229 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_9|) 0)) (forall ((v_ArrVal_3236 Int) (v_ArrVal_3237 (Array Int Int)) (v_ArrVal_3238 (Array Int Int))) (let ((.cse9 (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_3228))) (let ((.cse1 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse8 (store .cse9 .cse1 v_ArrVal_3230))) (let ((.cse2 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse7 (store .cse8 .cse2 v_ArrVal_3232))) (let ((.cse3 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse6 (store .cse7 .cse3 v_ArrVal_3235))) (let ((.cse4 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (<= (+ (select (select (store (store (store (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_3229) .cse1 v_ArrVal_3231) .cse2 v_ArrVal_3233) .cse3 v_ArrVal_3234) .cse4 v_ArrVal_3238) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) 44) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc61#1.base_9| v_ArrVal_3236) (select (select (store .cse6 .cse4 v_ArrVal_3237) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)))))))))))))) (or (forall ((v_ArrVal_3230 (Array Int Int)) (v_ArrVal_3231 (Array Int Int)) (v_ArrVal_3232 (Array Int Int)) (v_ArrVal_3233 (Array Int Int)) (v_ArrVal_3234 (Array Int Int)) (v_ArrVal_3235 (Array Int Int)) (v_ArrVal_3238 (Array Int Int)) (v_ArrVal_3228 (Array Int Int)) (v_ArrVal_3229 (Array Int Int))) (<= 0 (+ (select (select (let ((.cse15 (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_3228))) (let ((.cse10 (select (select .cse15 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse14 (store .cse15 .cse10 v_ArrVal_3230))) (let ((.cse11 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse13 (store .cse14 .cse11 v_ArrVal_3232))) (let ((.cse12 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (store (store (store (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_3229) .cse10 v_ArrVal_3231) .cse11 v_ArrVal_3233) .cse12 v_ArrVal_3234) (select (select (store .cse13 .cse12 v_ArrVal_3235) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) v_ArrVal_3238))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) 40))) (forall ((|v_ULTIMATE.start_main_#t~malloc61#1.base_9| Int)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc61#1.base_9|) 0))))))) is different from false [2024-11-27 23:45:31,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796315313] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:45:31,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:45:31,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16] total 31 [2024-11-27 23:45:31,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825875290] [2024-11-27 23:45:31,227 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:45:31,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-27 23:45:31,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:45:31,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-27 23:45:31,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=1578, Unknown=76, NotChecked=170, Total=2070 [2024-11-27 23:45:31,229 INFO L87 Difference]: Start difference. First operand 5769 states and 10422 transitions. Second operand has 32 states, 29 states have (on average 5.172413793103448) internal successors, (150), 31 states have internal predecessors, (150), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)