./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 1c32e831c11e67575bf9fc4420a056c0795572e7218bcd99a0067a1a2caea6f7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 00:27:56,519 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:27:56,573 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-01-10 00:27:56,578 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:27:56,578 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:27:56,603 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:27:56,605 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:27:56,606 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:27:56,606 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:27:56,606 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:27:56,607 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:27:56,607 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:27:56,607 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:27:56,607 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:27:56,608 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:27:56,608 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:27:56,608 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:27:56,608 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:27:56,608 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:27:56,608 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:27:56,608 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:27:56,608 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:27:56,608 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:27:56,609 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:27:56,609 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:27:56,609 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:27:56,609 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:27:56,609 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:27:56,609 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:27:56,609 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:27:56,609 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:27:56,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:27:56,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:27:56,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:27:56,610 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:27:56,610 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:27:56,610 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:27:56,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:27:56,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:27:56,610 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:27:56,610 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:27:56,610 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 00:27:56,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 00:27:56,610 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:27:56,611 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:27:56,611 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:27:56,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:27:56,611 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> 1c32e831c11e67575bf9fc4420a056c0795572e7218bcd99a0067a1a2caea6f7 [2025-01-10 00:27:56,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:27:56,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:27:56,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:27:56,865 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:27:56,865 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:27:56,867 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-1.i [2025-01-10 00:27:58,025 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9304e1e28/c3224a3ab0a64078aea4feb1604917a7/FLAG7f9cd4e8a [2025-01-10 00:27:58,326 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:27:58,329 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test10-1.i [2025-01-10 00:27:58,348 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9304e1e28/c3224a3ab0a64078aea4feb1604917a7/FLAG7f9cd4e8a [2025-01-10 00:27:58,363 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9304e1e28/c3224a3ab0a64078aea4feb1604917a7 [2025-01-10 00:27:58,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:27:58,367 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:27:58,369 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:27:58,369 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:27:58,372 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:27:58,376 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:27:58" (1/1) ... [2025-01-10 00:27:58,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10d116ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:58, skipping insertion in model container [2025-01-10 00:27:58,376 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:27:58" (1/1) ... [2025-01-10 00:27:58,410 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:27:58,724 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,753 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,757 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,762 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,768 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,791 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,792 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,794 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,797 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,817 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,818 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,819 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,819 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,839 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,839 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,840 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,840 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,853 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,853 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,854 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,854 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,867 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,867 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,868 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,870 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-10 00:27:58,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:27:58,892 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 00:27:59,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:27:59,035 INFO L204 MainTranslator]: Completed translation [2025-01-10 00:27:59,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:59 WrapperNode [2025-01-10 00:27:59,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:27:59,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 00:27:59,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 00:27:59,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 00:27:59,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:59" (1/1) ... [2025-01-10 00:27:59,072 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:59" (1/1) ... [2025-01-10 00:27:59,153 INFO L138 Inliner]: procedures = 177, calls = 507, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3338 [2025-01-10 00:27:59,154 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 00:27:59,154 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 00:27:59,154 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 00:27:59,154 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 00:27:59,161 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:59" (1/1) ... [2025-01-10 00:27:59,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:59" (1/1) ... [2025-01-10 00:27:59,182 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:59" (1/1) ... [2025-01-10 00:27:59,296 INFO L175 MemorySlicer]: Split 480 memory accesses to 3 slices as follows [2, 106, 372]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 86 writes are split as follows [0, 4, 82]. [2025-01-10 00:27:59,296 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:59" (1/1) ... [2025-01-10 00:27:59,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:59" (1/1) ... [2025-01-10 00:27:59,340 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:59" (1/1) ... [2025-01-10 00:27:59,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:59" (1/1) ... [2025-01-10 00:27:59,373 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:59" (1/1) ... [2025-01-10 00:27:59,380 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:59" (1/1) ... [2025-01-10 00:27:59,391 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:59" (1/1) ... [2025-01-10 00:27:59,410 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 00:27:59,410 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 00:27:59,410 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 00:27:59,410 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 00:27:59,411 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:59" (1/1) ... [2025-01-10 00:27:59,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:27:59,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:27:59,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 00:27:59,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 00:27:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2025-01-10 00:27:59,461 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2025-01-10 00:27:59,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 00:27:59,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 00:27:59,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-10 00:27:59,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-10 00:27:59,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-10 00:27:59,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 00:27:59,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 00:27:59,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-10 00:27:59,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-01-10 00:27:59,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-01-10 00:27:59,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-01-10 00:27:59,464 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-01-10 00:27:59,464 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-01-10 00:27:59,464 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-01-10 00:27:59,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-10 00:27:59,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 00:27:59,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-10 00:27:59,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-10 00:27:59,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-10 00:27:59,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 00:27:59,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-10 00:27:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-10 00:27:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-10 00:27:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 00:27:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 00:27:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 00:27:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-10 00:27:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 00:27:59,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 00:27:59,690 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 00:27:59,692 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 00:27:59,736 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-10 00:27:59,762 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-10 00:27:59,783 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2025-01-10 00:28:02,829 INFO L? ?]: Removed 2487 outVars from TransFormulas that were not future-live. [2025-01-10 00:28:02,829 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 00:28:02,877 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 00:28:02,877 INFO L312 CfgBuilder]: Removed 73 assume(true) statements. [2025-01-10 00:28:02,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:28:02 BoogieIcfgContainer [2025-01-10 00:28:02,878 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 00:28:02,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 00:28:02,879 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 00:28:02,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 00:28:02,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:27:58" (1/3) ... [2025-01-10 00:28:02,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e55943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:28:02, skipping insertion in model container [2025-01-10 00:28:02,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:27:59" (2/3) ... [2025-01-10 00:28:02,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e55943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:28:02, skipping insertion in model container [2025-01-10 00:28:02,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:28:02" (3/3) ... [2025-01-10 00:28:02,886 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test10-1.i [2025-01-10 00:28:02,897 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 00:28:02,900 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SAX_test10-1.i that has 6 procedures, 2653 locations, 1 initial locations, 84 loop locations, and 986 error locations. [2025-01-10 00:28:02,962 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 00:28:02,970 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;@1a3412af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 00:28:02,970 INFO L334 AbstractCegarLoop]: Starting to check reachability of 986 error locations. [2025-01-10 00:28:02,979 INFO L276 IsEmpty]: Start isEmpty. Operand has 2643 states, 1645 states have (on average 1.974468085106383) internal successors, (3248), 2629 states have internal predecessors, (3248), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2025-01-10 00:28:02,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-01-10 00:28:02,982 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:02,982 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-01-10 00:28:02,984 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:02,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:02,988 INFO L85 PathProgramCache]: Analyzing trace with hash 84472, now seen corresponding path program 1 times [2025-01-10 00:28:02,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:02,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297788933] [2025-01-10 00:28:02,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:02,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:03,062 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 00:28:03,072 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 00:28:03,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:03,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:03,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:03,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:03,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297788933] [2025-01-10 00:28:03,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297788933] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:03,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:03,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:28:03,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977454556] [2025-01-10 00:28:03,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:03,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:28:03,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:03,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:28:03,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:28:03,183 INFO L87 Difference]: Start difference. First operand has 2643 states, 1645 states have (on average 1.974468085106383) internal successors, (3248), 2629 states have internal predecessors, (3248), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) 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) [2025-01-10 00:28:04,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:04,462 INFO L93 Difference]: Finished difference Result 3227 states and 3798 transitions. [2025-01-10 00:28:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:28:04,464 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 [2025-01-10 00:28:04,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:04,489 INFO L225 Difference]: With dead ends: 3227 [2025-01-10 00:28:04,490 INFO L226 Difference]: Without dead ends: 3225 [2025-01-10 00:28:04,491 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 [2025-01-10 00:28:04,492 INFO L435 NwaCegarLoop]: 2190 mSDtfsCounter, 2862 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2872 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:04,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2872 Valid, 2725 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-01-10 00:28:04,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3225 states. [2025-01-10 00:28:04,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3225 to 2879. [2025-01-10 00:28:04,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2879 states, 1909 states have (on average 1.8706128863279203) internal successors, (3571), 2863 states have internal predecessors, (3571), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2025-01-10 00:28:04,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2879 states to 2879 states and 3603 transitions. [2025-01-10 00:28:04,597 INFO L78 Accepts]: Start accepts. Automaton has 2879 states and 3603 transitions. Word has length 3 [2025-01-10 00:28:04,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:04,597 INFO L471 AbstractCegarLoop]: Abstraction has 2879 states and 3603 transitions. [2025-01-10 00:28:04,597 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) [2025-01-10 00:28:04,597 INFO L276 IsEmpty]: Start isEmpty. Operand 2879 states and 3603 transitions. [2025-01-10 00:28:04,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-01-10 00:28:04,598 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:04,598 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-01-10 00:28:04,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 00:28:04,598 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:04,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:04,599 INFO L85 PathProgramCache]: Analyzing trace with hash 84473, now seen corresponding path program 1 times [2025-01-10 00:28:04,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:04,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290545033] [2025-01-10 00:28:04,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:04,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:04,607 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 00:28:04,611 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 00:28:04,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:04,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:04,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:04,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:04,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290545033] [2025-01-10 00:28:04,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290545033] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:04,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:04,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:28:04,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572409222] [2025-01-10 00:28:04,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:04,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:28:04,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:04,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:28:04,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:28:04,683 INFO L87 Difference]: Start difference. First operand 2879 states and 3603 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) [2025-01-10 00:28:06,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:06,253 INFO L93 Difference]: Finished difference Result 4943 states and 6120 transitions. [2025-01-10 00:28:06,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:28:06,253 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 [2025-01-10 00:28:06,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:06,268 INFO L225 Difference]: With dead ends: 4943 [2025-01-10 00:28:06,268 INFO L226 Difference]: Without dead ends: 4943 [2025-01-10 00:28:06,268 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 [2025-01-10 00:28:06,270 INFO L435 NwaCegarLoop]: 2392 mSDtfsCounter, 2497 mSDsluCounter, 2101 mSDsCounter, 0 mSdLazyCounter, 1683 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2504 SdHoareTripleChecker+Valid, 4493 SdHoareTripleChecker+Invalid, 1705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:06,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2504 Valid, 4493 Invalid, 1705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1683 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-01-10 00:28:06,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4943 states. [2025-01-10 00:28:06,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4943 to 4267. [2025-01-10 00:28:06,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4267 states, 3295 states have (on average 1.8385432473444614) internal successors, (6058), 4244 states have internal predecessors, (6058), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2025-01-10 00:28:06,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4267 states to 4267 states and 6104 transitions. [2025-01-10 00:28:06,346 INFO L78 Accepts]: Start accepts. Automaton has 4267 states and 6104 transitions. Word has length 3 [2025-01-10 00:28:06,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:06,346 INFO L471 AbstractCegarLoop]: Abstraction has 4267 states and 6104 transitions. [2025-01-10 00:28:06,347 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) [2025-01-10 00:28:06,347 INFO L276 IsEmpty]: Start isEmpty. Operand 4267 states and 6104 transitions. [2025-01-10 00:28:06,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-10 00:28:06,347 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:06,348 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:28:06,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 00:28:06,348 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:06,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:06,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1567526949, now seen corresponding path program 1 times [2025-01-10 00:28:06,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:06,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940334858] [2025-01-10 00:28:06,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:06,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:06,364 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 00:28:06,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 00:28:06,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:06,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:06,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:06,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:06,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940334858] [2025-01-10 00:28:06,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940334858] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:06,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:06,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:28:06,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048250363] [2025-01-10 00:28:06,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:06,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:28:06,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:06,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:28:06,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:28:06,421 INFO L87 Difference]: Start difference. First operand 4267 states and 6104 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) [2025-01-10 00:28:07,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:07,462 INFO L93 Difference]: Finished difference Result 5348 states and 7422 transitions. [2025-01-10 00:28:07,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:28:07,463 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 [2025-01-10 00:28:07,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:07,478 INFO L225 Difference]: With dead ends: 5348 [2025-01-10 00:28:07,478 INFO L226 Difference]: Without dead ends: 5348 [2025-01-10 00:28:07,479 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 [2025-01-10 00:28:07,479 INFO L435 NwaCegarLoop]: 3518 mSDtfsCounter, 2833 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 4684 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:07,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2843 Valid, 4684 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-01-10 00:28:07,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5348 states. [2025-01-10 00:28:07,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5348 to 4175. [2025-01-10 00:28:07,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4175 states, 3295 states have (on average 1.7899848254931714) internal successors, (5898), 4152 states have internal predecessors, (5898), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2025-01-10 00:28:07,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4175 states to 4175 states and 5944 transitions. [2025-01-10 00:28:07,551 INFO L78 Accepts]: Start accepts. Automaton has 4175 states and 5944 transitions. Word has length 9 [2025-01-10 00:28:07,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:07,552 INFO L471 AbstractCegarLoop]: Abstraction has 4175 states and 5944 transitions. [2025-01-10 00:28:07,552 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) [2025-01-10 00:28:07,552 INFO L276 IsEmpty]: Start isEmpty. Operand 4175 states and 5944 transitions. [2025-01-10 00:28:07,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-10 00:28:07,552 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:07,552 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:28:07,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 00:28:07,553 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:07,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:07,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1567526950, now seen corresponding path program 1 times [2025-01-10 00:28:07,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:07,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031974538] [2025-01-10 00:28:07,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:07,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:07,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 00:28:07,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 00:28:07,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:07,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:07,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:07,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:07,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031974538] [2025-01-10 00:28:07,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031974538] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:07,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:07,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 00:28:07,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158022171] [2025-01-10 00:28:07,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:07,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:28:07,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:07,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:28:07,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:28:07,657 INFO L87 Difference]: Start difference. First operand 4175 states and 5944 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) [2025-01-10 00:28:08,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:08,836 INFO L93 Difference]: Finished difference Result 6902 states and 9885 transitions. [2025-01-10 00:28:08,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:28:08,836 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 [2025-01-10 00:28:08,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:08,855 INFO L225 Difference]: With dead ends: 6902 [2025-01-10 00:28:08,855 INFO L226 Difference]: Without dead ends: 6902 [2025-01-10 00:28:08,855 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 [2025-01-10 00:28:08,856 INFO L435 NwaCegarLoop]: 3872 mSDtfsCounter, 2314 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 1485 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2318 SdHoareTripleChecker+Valid, 5644 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:08,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2318 Valid, 5644 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1485 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-01-10 00:28:08,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6902 states. [2025-01-10 00:28:08,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6902 to 4705. [2025-01-10 00:28:08,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4705 states, 3835 states have (on average 1.7835723598435462) internal successors, (6840), 4682 states have internal predecessors, (6840), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2025-01-10 00:28:08,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4705 states to 4705 states and 6886 transitions. [2025-01-10 00:28:08,929 INFO L78 Accepts]: Start accepts. Automaton has 4705 states and 6886 transitions. Word has length 9 [2025-01-10 00:28:08,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:08,929 INFO L471 AbstractCegarLoop]: Abstraction has 4705 states and 6886 transitions. [2025-01-10 00:28:08,929 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) [2025-01-10 00:28:08,929 INFO L276 IsEmpty]: Start isEmpty. Operand 4705 states and 6886 transitions. [2025-01-10 00:28:08,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-01-10 00:28:08,929 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:08,929 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 00:28:08,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 00:28:08,930 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr638REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:08,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:08,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1668848489, now seen corresponding path program 1 times [2025-01-10 00:28:08,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:08,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095920257] [2025-01-10 00:28:08,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:08,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:08,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-10 00:28:08,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 00:28:08,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:08,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:09,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:09,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:09,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095920257] [2025-01-10 00:28:09,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095920257] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:09,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:09,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:28:09,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26935890] [2025-01-10 00:28:09,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:09,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:28:09,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:09,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:28:09,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:28:09,034 INFO L87 Difference]: Start difference. First operand 4705 states and 6886 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:09,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:09,215 INFO L93 Difference]: Finished difference Result 6537 states and 9323 transitions. [2025-01-10 00:28:09,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:28:09,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2025-01-10 00:28:09,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:09,243 INFO L225 Difference]: With dead ends: 6537 [2025-01-10 00:28:09,243 INFO L226 Difference]: Without dead ends: 6537 [2025-01-10 00:28:09,243 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 [2025-01-10 00:28:09,244 INFO L435 NwaCegarLoop]: 3206 mSDtfsCounter, 1446 mSDsluCounter, 6047 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 9253 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:09,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1452 Valid, 9253 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 00:28:09,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6537 states. [2025-01-10 00:28:09,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6537 to 4707. [2025-01-10 00:28:09,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4707 states, 3837 states have (on average 1.783163930153766) internal successors, (6842), 4684 states have internal predecessors, (6842), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2025-01-10 00:28:09,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4707 states to 4707 states and 6888 transitions. [2025-01-10 00:28:09,306 INFO L78 Accepts]: Start accepts. Automaton has 4707 states and 6888 transitions. Word has length 11 [2025-01-10 00:28:09,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:09,306 INFO L471 AbstractCegarLoop]: Abstraction has 4707 states and 6888 transitions. [2025-01-10 00:28:09,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:09,306 INFO L276 IsEmpty]: Start isEmpty. Operand 4707 states and 6888 transitions. [2025-01-10 00:28:09,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-01-10 00:28:09,307 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:09,307 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] [2025-01-10 00:28:09,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 00:28:09,307 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:09,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:09,307 INFO L85 PathProgramCache]: Analyzing trace with hash -2007176814, now seen corresponding path program 1 times [2025-01-10 00:28:09,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:09,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507986077] [2025-01-10 00:28:09,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:09,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:09,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-10 00:28:09,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-10 00:28:09,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:09,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:09,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:09,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:09,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507986077] [2025-01-10 00:28:09,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507986077] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:09,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:09,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:28:09,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103676164] [2025-01-10 00:28:09,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:09,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:28:09,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:09,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:28:09,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:28:09,378 INFO L87 Difference]: Start difference. First operand 4707 states and 6888 transitions. Second operand has 4 states, 3 states have (on average 7.0) 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) [2025-01-10 00:28:10,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:10,481 INFO L93 Difference]: Finished difference Result 4783 states and 6995 transitions. [2025-01-10 00:28:10,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:28:10,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) 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 [2025-01-10 00:28:10,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:10,490 INFO L225 Difference]: With dead ends: 4783 [2025-01-10 00:28:10,490 INFO L226 Difference]: Without dead ends: 4783 [2025-01-10 00:28:10,490 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 [2025-01-10 00:28:10,491 INFO L435 NwaCegarLoop]: 2019 mSDtfsCounter, 3095 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 2009 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3105 SdHoareTripleChecker+Valid, 3915 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:10,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3105 Valid, 3915 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2009 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-01-10 00:28:10,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4783 states. [2025-01-10 00:28:10,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4783 to 4684. [2025-01-10 00:28:10,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4684 states, 3837 states have (on average 1.7711753974459212) internal successors, (6796), 4661 states have internal predecessors, (6796), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2025-01-10 00:28:10,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4684 states to 4684 states and 6842 transitions. [2025-01-10 00:28:10,542 INFO L78 Accepts]: Start accepts. Automaton has 4684 states and 6842 transitions. Word has length 21 [2025-01-10 00:28:10,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:10,542 INFO L471 AbstractCegarLoop]: Abstraction has 4684 states and 6842 transitions. [2025-01-10 00:28:10,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) 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) [2025-01-10 00:28:10,543 INFO L276 IsEmpty]: Start isEmpty. Operand 4684 states and 6842 transitions. [2025-01-10 00:28:10,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-01-10 00:28:10,543 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:10,543 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] [2025-01-10 00:28:10,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 00:28:10,543 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:10,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:10,544 INFO L85 PathProgramCache]: Analyzing trace with hash -2007176813, now seen corresponding path program 1 times [2025-01-10 00:28:10,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:10,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866115472] [2025-01-10 00:28:10,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:10,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:10,554 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-10 00:28:10,558 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-10 00:28:10,558 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:10,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:10,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:10,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:10,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866115472] [2025-01-10 00:28:10,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866115472] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:10,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:10,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:28:10,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917501381] [2025-01-10 00:28:10,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:10,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:28:10,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:10,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:28:10,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:28:10,629 INFO L87 Difference]: Start difference. First operand 4684 states and 6842 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:10,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:10,659 INFO L93 Difference]: Finished difference Result 4546 states and 6636 transitions. [2025-01-10 00:28:10,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:28:10,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2025-01-10 00:28:10,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:10,666 INFO L225 Difference]: With dead ends: 4546 [2025-01-10 00:28:10,667 INFO L226 Difference]: Without dead ends: 4546 [2025-01-10 00:28:10,667 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 [2025-01-10 00:28:10,667 INFO L435 NwaCegarLoop]: 2850 mSDtfsCounter, 60 mSDsluCounter, 2797 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 5647 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:10,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 5647 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 00:28:10,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4546 states. [2025-01-10 00:28:10,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 4546. [2025-01-10 00:28:10,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4546 states, 3711 states have (on average 1.7758016707087039) internal successors, (6590), 4523 states have internal predecessors, (6590), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2025-01-10 00:28:10,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4546 states to 4546 states and 6636 transitions. [2025-01-10 00:28:10,716 INFO L78 Accepts]: Start accepts. Automaton has 4546 states and 6636 transitions. Word has length 21 [2025-01-10 00:28:10,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:10,716 INFO L471 AbstractCegarLoop]: Abstraction has 4546 states and 6636 transitions. [2025-01-10 00:28:10,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:10,716 INFO L276 IsEmpty]: Start isEmpty. Operand 4546 states and 6636 transitions. [2025-01-10 00:28:10,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-01-10 00:28:10,717 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:10,717 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] [2025-01-10 00:28:10,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-10 00:28:10,717 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr324REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:10,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:10,717 INFO L85 PathProgramCache]: Analyzing trace with hash 79902610, now seen corresponding path program 1 times [2025-01-10 00:28:10,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:10,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897159197] [2025-01-10 00:28:10,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:10,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:10,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-10 00:28:10,733 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-10 00:28:10,733 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:10,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:10,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:10,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:10,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897159197] [2025-01-10 00:28:10,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897159197] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:10,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:10,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:28:10,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844086743] [2025-01-10 00:28:10,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:10,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:28:10,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:10,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:28:10,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:28:10,790 INFO L87 Difference]: Start difference. First operand 4546 states and 6636 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) [2025-01-10 00:28:10,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:10,969 INFO L93 Difference]: Finished difference Result 6278 states and 8944 transitions. [2025-01-10 00:28:10,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:28:10,969 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 [2025-01-10 00:28:10,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:10,981 INFO L225 Difference]: With dead ends: 6278 [2025-01-10 00:28:10,981 INFO L226 Difference]: Without dead ends: 6278 [2025-01-10 00:28:10,981 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 [2025-01-10 00:28:10,982 INFO L435 NwaCegarLoop]: 3084 mSDtfsCounter, 1308 mSDsluCounter, 5799 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 8883 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:10,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 8883 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 00:28:10,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6278 states. [2025-01-10 00:28:11,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6278 to 4557. [2025-01-10 00:28:11,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4557 states, 3722 states have (on average 1.7735088662009673) internal successors, (6601), 4534 states have internal predecessors, (6601), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2025-01-10 00:28:11,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4557 states to 4557 states and 6647 transitions. [2025-01-10 00:28:11,057 INFO L78 Accepts]: Start accepts. Automaton has 4557 states and 6647 transitions. Word has length 21 [2025-01-10 00:28:11,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:11,057 INFO L471 AbstractCegarLoop]: Abstraction has 4557 states and 6647 transitions. [2025-01-10 00:28:11,057 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) [2025-01-10 00:28:11,057 INFO L276 IsEmpty]: Start isEmpty. Operand 4557 states and 6647 transitions. [2025-01-10 00:28:11,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-01-10 00:28:11,057 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:11,058 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] [2025-01-10 00:28:11,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-10 00:28:11,058 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:11,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:11,058 INFO L85 PathProgramCache]: Analyzing trace with hash -2092723455, now seen corresponding path program 1 times [2025-01-10 00:28:11,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:11,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867887160] [2025-01-10 00:28:11,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:11,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:11,073 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-10 00:28:11,080 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-10 00:28:11,080 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:11,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:11,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:11,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:11,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867887160] [2025-01-10 00:28:11,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867887160] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:11,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:11,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:28:11,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463646899] [2025-01-10 00:28:11,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:11,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:28:11,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:11,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:28:11,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:28:11,120 INFO L87 Difference]: Start difference. First operand 4557 states and 6647 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:11,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:11,173 INFO L93 Difference]: Finished difference Result 4528 states and 6597 transitions. [2025-01-10 00:28:11,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:28:11,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2025-01-10 00:28:11,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:11,180 INFO L225 Difference]: With dead ends: 4528 [2025-01-10 00:28:11,181 INFO L226 Difference]: Without dead ends: 4528 [2025-01-10 00:28:11,181 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 [2025-01-10 00:28:11,182 INFO L435 NwaCegarLoop]: 2815 mSDtfsCounter, 41 mSDsluCounter, 5602 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 8417 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:11,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 8417 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 00:28:11,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4528 states. [2025-01-10 00:28:11,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4528 to 4522. [2025-01-10 00:28:11,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4522 states, 3694 states have (on average 1.7717920952896589) internal successors, (6545), 4499 states have internal predecessors, (6545), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2025-01-10 00:28:11,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4522 states to 4522 states and 6591 transitions. [2025-01-10 00:28:11,225 INFO L78 Accepts]: Start accepts. Automaton has 4522 states and 6591 transitions. Word has length 22 [2025-01-10 00:28:11,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:11,226 INFO L471 AbstractCegarLoop]: Abstraction has 4522 states and 6591 transitions. [2025-01-10 00:28:11,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:11,226 INFO L276 IsEmpty]: Start isEmpty. Operand 4522 states and 6591 transitions. [2025-01-10 00:28:11,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-01-10 00:28:11,227 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:11,228 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] [2025-01-10 00:28:11,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-10 00:28:11,228 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:11,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:11,228 INFO L85 PathProgramCache]: Analyzing trace with hash -977831121, now seen corresponding path program 1 times [2025-01-10 00:28:11,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:11,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014075143] [2025-01-10 00:28:11,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:11,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:11,242 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-01-10 00:28:11,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-01-10 00:28:11,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:11,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:11,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:11,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:11,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014075143] [2025-01-10 00:28:11,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014075143] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:11,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:11,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:28:11,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638476254] [2025-01-10 00:28:11,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:11,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:28:11,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:11,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:28:11,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:28:11,381 INFO L87 Difference]: Start difference. First operand 4522 states and 6591 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:12,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:12,714 INFO L93 Difference]: Finished difference Result 6813 states and 9734 transitions. [2025-01-10 00:28:12,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 00:28:12,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2025-01-10 00:28:12,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:12,726 INFO L225 Difference]: With dead ends: 6813 [2025-01-10 00:28:12,727 INFO L226 Difference]: Without dead ends: 6813 [2025-01-10 00:28:12,727 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 [2025-01-10 00:28:12,727 INFO L435 NwaCegarLoop]: 2287 mSDtfsCounter, 2313 mSDsluCounter, 3638 mSDsCounter, 0 mSdLazyCounter, 2385 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2317 SdHoareTripleChecker+Valid, 5925 SdHoareTripleChecker+Invalid, 2388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:12,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2317 Valid, 5925 Invalid, 2388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2385 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-01-10 00:28:12,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6813 states. [2025-01-10 00:28:12,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6813 to 4518. [2025-01-10 00:28:12,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4518 states, 3694 states have (on average 1.769626421223606) internal successors, (6537), 4495 states have internal predecessors, (6537), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2025-01-10 00:28:12,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4518 states to 4518 states and 6583 transitions. [2025-01-10 00:28:12,777 INFO L78 Accepts]: Start accepts. Automaton has 4518 states and 6583 transitions. Word has length 36 [2025-01-10 00:28:12,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:12,777 INFO L471 AbstractCegarLoop]: Abstraction has 4518 states and 6583 transitions. [2025-01-10 00:28:12,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:12,778 INFO L276 IsEmpty]: Start isEmpty. Operand 4518 states and 6583 transitions. [2025-01-10 00:28:12,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-01-10 00:28:12,780 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:12,780 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] [2025-01-10 00:28:12,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-10 00:28:12,780 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr119REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:12,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:12,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1905530821, now seen corresponding path program 1 times [2025-01-10 00:28:12,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:12,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300022010] [2025-01-10 00:28:12,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:12,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:12,799 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-01-10 00:28:12,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-01-10 00:28:12,810 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:12,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:12,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:12,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:12,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300022010] [2025-01-10 00:28:12,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300022010] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:12,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:12,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:28:12,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169670711] [2025-01-10 00:28:12,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:12,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 00:28:12,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:12,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 00:28:12,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 00:28:12,893 INFO L87 Difference]: Start difference. First operand 4518 states and 6583 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:12,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:12,962 INFO L93 Difference]: Finished difference Result 4518 states and 6575 transitions. [2025-01-10 00:28:12,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:28:12,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2025-01-10 00:28:12,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:12,974 INFO L225 Difference]: With dead ends: 4518 [2025-01-10 00:28:12,974 INFO L226 Difference]: Without dead ends: 4518 [2025-01-10 00:28:12,975 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 [2025-01-10 00:28:12,975 INFO L435 NwaCegarLoop]: 2810 mSDtfsCounter, 21 mSDsluCounter, 5589 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 8399 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:12,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 8399 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 00:28:12,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states. [2025-01-10 00:28:13,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 4518. [2025-01-10 00:28:13,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4518 states, 3694 states have (on average 1.7674607471575527) internal successors, (6529), 4495 states have internal predecessors, (6529), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2025-01-10 00:28:13,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4518 states to 4518 states and 6575 transitions. [2025-01-10 00:28:13,038 INFO L78 Accepts]: Start accepts. Automaton has 4518 states and 6575 transitions. Word has length 70 [2025-01-10 00:28:13,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:13,038 INFO L471 AbstractCegarLoop]: Abstraction has 4518 states and 6575 transitions. [2025-01-10 00:28:13,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:13,038 INFO L276 IsEmpty]: Start isEmpty. Operand 4518 states and 6575 transitions. [2025-01-10 00:28:13,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-01-10 00:28:13,039 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:13,039 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] [2025-01-10 00:28:13,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-10 00:28:13,040 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr119REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:13,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:13,040 INFO L85 PathProgramCache]: Analyzing trace with hash -254424303, now seen corresponding path program 1 times [2025-01-10 00:28:13,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:13,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558292092] [2025-01-10 00:28:13,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:13,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:13,054 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-01-10 00:28:13,070 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-01-10 00:28:13,070 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:13,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:13,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:13,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:13,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558292092] [2025-01-10 00:28:13,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558292092] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:13,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:13,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 00:28:13,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275805968] [2025-01-10 00:28:13,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:13,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 00:28:13,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:13,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 00:28:13,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 00:28:13,164 INFO L87 Difference]: Start difference. First operand 4518 states and 6575 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:13,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:13,240 INFO L93 Difference]: Finished difference Result 6015 states and 8747 transitions. [2025-01-10 00:28:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 00:28:13,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2025-01-10 00:28:13,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:13,251 INFO L225 Difference]: With dead ends: 6015 [2025-01-10 00:28:13,252 INFO L226 Difference]: Without dead ends: 6015 [2025-01-10 00:28:13,252 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 [2025-01-10 00:28:13,252 INFO L435 NwaCegarLoop]: 2826 mSDtfsCounter, 1080 mSDsluCounter, 2762 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 5588 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:13,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 5588 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 00:28:13,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6015 states. [2025-01-10 00:28:13,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6015 to 5366. [2025-01-10 00:28:13,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5366 states, 4538 states have (on average 1.750110180696342) internal successors, (7942), 5339 states have internal predecessors, (7942), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-10 00:28:13,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5366 states to 5366 states and 7996 transitions. [2025-01-10 00:28:13,307 INFO L78 Accepts]: Start accepts. Automaton has 5366 states and 7996 transitions. Word has length 78 [2025-01-10 00:28:13,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:13,307 INFO L471 AbstractCegarLoop]: Abstraction has 5366 states and 7996 transitions. [2025-01-10 00:28:13,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:13,307 INFO L276 IsEmpty]: Start isEmpty. Operand 5366 states and 7996 transitions. [2025-01-10 00:28:13,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-01-10 00:28:13,309 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:13,310 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] [2025-01-10 00:28:13,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-10 00:28:13,310 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:13,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:13,311 INFO L85 PathProgramCache]: Analyzing trace with hash 953868622, now seen corresponding path program 1 times [2025-01-10 00:28:13,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:13,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930570545] [2025-01-10 00:28:13,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:13,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:13,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-01-10 00:28:13,363 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-01-10 00:28:13,363 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:13,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:13,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:13,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:13,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930570545] [2025-01-10 00:28:13,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930570545] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:13,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:13,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 00:28:13,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746874816] [2025-01-10 00:28:13,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:13,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 00:28:13,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:13,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 00:28:13,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-01-10 00:28:13,653 INFO L87 Difference]: Start difference. First operand 5366 states and 7996 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:14,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:14,937 INFO L93 Difference]: Finished difference Result 5282 states and 7854 transitions. [2025-01-10 00:28:14,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 00:28:14,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2025-01-10 00:28:14,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:14,946 INFO L225 Difference]: With dead ends: 5282 [2025-01-10 00:28:14,947 INFO L226 Difference]: Without dead ends: 5282 [2025-01-10 00:28:14,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-01-10 00:28:14,947 INFO L435 NwaCegarLoop]: 1543 mSDtfsCounter, 2649 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 2463 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2659 SdHoareTripleChecker+Valid, 3094 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:14,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2659 Valid, 3094 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2463 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-01-10 00:28:14,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5282 states. [2025-01-10 00:28:14,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5282 to 4742. [2025-01-10 00:28:14,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4742 states, 3998 states have (on average 1.7103551775887944) internal successors, (6838), 4715 states have internal predecessors, (6838), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-10 00:28:14,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4742 states to 4742 states and 6892 transitions. [2025-01-10 00:28:14,991 INFO L78 Accepts]: Start accepts. Automaton has 4742 states and 6892 transitions. Word has length 81 [2025-01-10 00:28:14,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:14,991 INFO L471 AbstractCegarLoop]: Abstraction has 4742 states and 6892 transitions. [2025-01-10 00:28:14,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:14,991 INFO L276 IsEmpty]: Start isEmpty. Operand 4742 states and 6892 transitions. [2025-01-10 00:28:14,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-01-10 00:28:14,992 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:14,992 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] [2025-01-10 00:28:14,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-10 00:28:14,992 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:14,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:14,993 INFO L85 PathProgramCache]: Analyzing trace with hash -637744348, now seen corresponding path program 1 times [2025-01-10 00:28:14,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:14,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161202170] [2025-01-10 00:28:14,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:14,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:15,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-01-10 00:28:15,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-01-10 00:28:15,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:15,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:15,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:15,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:15,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161202170] [2025-01-10 00:28:15,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161202170] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:15,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:15,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:28:15,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188116550] [2025-01-10 00:28:15,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:15,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:28:15,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:15,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:28:15,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:28:15,243 INFO L87 Difference]: Start difference. First operand 4742 states and 6892 transitions. Second operand has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:16,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:16,248 INFO L93 Difference]: Finished difference Result 4741 states and 6890 transitions. [2025-01-10 00:28:16,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 00:28:16,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2025-01-10 00:28:16,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:16,257 INFO L225 Difference]: With dead ends: 4741 [2025-01-10 00:28:16,257 INFO L226 Difference]: Without dead ends: 4741 [2025-01-10 00:28:16,257 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 [2025-01-10 00:28:16,257 INFO L435 NwaCegarLoop]: 2736 mSDtfsCounter, 2 mSDsluCounter, 5723 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8459 SdHoareTripleChecker+Invalid, 2493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:16,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8459 Invalid, 2493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2492 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-01-10 00:28:16,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4741 states. [2025-01-10 00:28:16,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4741 to 4741. [2025-01-10 00:28:16,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4741 states, 3998 states have (on average 1.7098549274637318) internal successors, (6836), 4714 states have internal predecessors, (6836), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-10 00:28:16,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4741 states to 4741 states and 6890 transitions. [2025-01-10 00:28:16,308 INFO L78 Accepts]: Start accepts. Automaton has 4741 states and 6890 transitions. Word has length 86 [2025-01-10 00:28:16,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:16,308 INFO L471 AbstractCegarLoop]: Abstraction has 4741 states and 6890 transitions. [2025-01-10 00:28:16,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:16,308 INFO L276 IsEmpty]: Start isEmpty. Operand 4741 states and 6890 transitions. [2025-01-10 00:28:16,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-01-10 00:28:16,309 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:16,309 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] [2025-01-10 00:28:16,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-10 00:28:16,309 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr79REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:16,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:16,309 INFO L85 PathProgramCache]: Analyzing trace with hash -637744347, now seen corresponding path program 1 times [2025-01-10 00:28:16,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:16,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102194878] [2025-01-10 00:28:16,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:16,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:16,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-01-10 00:28:16,348 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-01-10 00:28:16,348 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:16,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:16,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:16,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:16,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102194878] [2025-01-10 00:28:16,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102194878] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:16,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:16,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 00:28:16,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737417878] [2025-01-10 00:28:16,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:16,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 00:28:16,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:16,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 00:28:16,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 00:28:16,650 INFO L87 Difference]: Start difference. First operand 4741 states and 6890 transitions. Second operand has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:17,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:17,888 INFO L93 Difference]: Finished difference Result 4740 states and 6888 transitions. [2025-01-10 00:28:17,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 00:28:17,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2025-01-10 00:28:17,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:17,895 INFO L225 Difference]: With dead ends: 4740 [2025-01-10 00:28:17,896 INFO L226 Difference]: Without dead ends: 4740 [2025-01-10 00:28:17,897 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 [2025-01-10 00:28:17,898 INFO L435 NwaCegarLoop]: 2736 mSDtfsCounter, 1 mSDsluCounter, 5697 mSDsCounter, 0 mSdLazyCounter, 2515 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8433 SdHoareTripleChecker+Invalid, 2516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:17,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8433 Invalid, 2516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2515 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-01-10 00:28:17,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4740 states. [2025-01-10 00:28:17,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4740 to 4740. [2025-01-10 00:28:17,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4740 states, 3996 states have (on average 1.7102102102102101) internal successors, (6834), 4713 states have internal predecessors, (6834), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-10 00:28:17,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4740 states to 4740 states and 6888 transitions. [2025-01-10 00:28:17,942 INFO L78 Accepts]: Start accepts. Automaton has 4740 states and 6888 transitions. Word has length 86 [2025-01-10 00:28:17,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:17,942 INFO L471 AbstractCegarLoop]: Abstraction has 4740 states and 6888 transitions. [2025-01-10 00:28:17,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 00:28:17,943 INFO L276 IsEmpty]: Start isEmpty. Operand 4740 states and 6888 transitions. [2025-01-10 00:28:17,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-01-10 00:28:17,945 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:17,945 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] [2025-01-10 00:28:17,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-10 00:28:17,945 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:17,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:17,946 INFO L85 PathProgramCache]: Analyzing trace with hash -2048934933, now seen corresponding path program 1 times [2025-01-10 00:28:17,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:17,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092710951] [2025-01-10 00:28:17,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:17,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:17,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-01-10 00:28:17,972 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-01-10 00:28:17,973 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:17,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:18,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:18,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:18,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092710951] [2025-01-10 00:28:18,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092710951] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:18,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:18,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 00:28:18,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522958419] [2025-01-10 00:28:18,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:18,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 00:28:18,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:18,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 00:28:18,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-10 00:28:18,135 INFO L87 Difference]: Start difference. First operand 4740 states and 6888 transitions. Second operand has 7 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 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) [2025-01-10 00:28:19,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:19,814 INFO L93 Difference]: Finished difference Result 4758 states and 6921 transitions. [2025-01-10 00:28:19,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 00:28:19,815 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 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 94 [2025-01-10 00:28:19,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:19,824 INFO L225 Difference]: With dead ends: 4758 [2025-01-10 00:28:19,824 INFO L226 Difference]: Without dead ends: 4758 [2025-01-10 00:28:19,824 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 [2025-01-10 00:28:19,825 INFO L435 NwaCegarLoop]: 2700 mSDtfsCounter, 27 mSDsluCounter, 10506 mSDsCounter, 0 mSdLazyCounter, 3188 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 13206 SdHoareTripleChecker+Invalid, 3199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:19,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 13206 Invalid, 3199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3188 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-01-10 00:28:19,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4758 states. [2025-01-10 00:28:19,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4758 to 4749. [2025-01-10 00:28:19,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4749 states, 4004 states have (on average 1.7095404595404595) internal successors, (6845), 4720 states have internal predecessors, (6845), 27 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (39), 26 states have call predecessors, (39), 27 states have call successors, (39) [2025-01-10 00:28:19,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4749 states to 4749 states and 6911 transitions. [2025-01-10 00:28:19,884 INFO L78 Accepts]: Start accepts. Automaton has 4749 states and 6911 transitions. Word has length 94 [2025-01-10 00:28:19,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:19,884 INFO L471 AbstractCegarLoop]: Abstraction has 4749 states and 6911 transitions. [2025-01-10 00:28:19,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 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) [2025-01-10 00:28:19,885 INFO L276 IsEmpty]: Start isEmpty. Operand 4749 states and 6911 transitions. [2025-01-10 00:28:19,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-01-10 00:28:19,885 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:19,886 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] [2025-01-10 00:28:19,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-10 00:28:19,886 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr83REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:19,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:19,887 INFO L85 PathProgramCache]: Analyzing trace with hash -2048934932, now seen corresponding path program 1 times [2025-01-10 00:28:19,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:19,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118218952] [2025-01-10 00:28:19,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:19,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:19,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-01-10 00:28:19,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-01-10 00:28:19,927 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:19,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:20,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:20,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:20,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118218952] [2025-01-10 00:28:20,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118218952] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:20,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:20,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 00:28:20,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786635139] [2025-01-10 00:28:20,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:20,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 00:28:20,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:20,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 00:28:20,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 00:28:20,246 INFO L87 Difference]: Start difference. First operand 4749 states and 6911 transitions. Second operand has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 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) [2025-01-10 00:28:21,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:21,529 INFO L93 Difference]: Finished difference Result 4749 states and 6909 transitions. [2025-01-10 00:28:21,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 00:28:21,529 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 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 94 [2025-01-10 00:28:21,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:21,537 INFO L225 Difference]: With dead ends: 4749 [2025-01-10 00:28:21,538 INFO L226 Difference]: Without dead ends: 4749 [2025-01-10 00:28:21,538 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 [2025-01-10 00:28:21,538 INFO L435 NwaCegarLoop]: 2707 mSDtfsCounter, 22 mSDsluCounter, 8053 mSDsCounter, 0 mSdLazyCounter, 2892 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 10760 SdHoareTripleChecker+Invalid, 2901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:21,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 10760 Invalid, 2901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2892 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-01-10 00:28:21,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4749 states. [2025-01-10 00:28:21,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4749 to 4749. [2025-01-10 00:28:21,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4749 states, 4004 states have (on average 1.709040959040959) internal successors, (6843), 4720 states have internal predecessors, (6843), 27 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (39), 26 states have call predecessors, (39), 27 states have call successors, (39) [2025-01-10 00:28:21,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4749 states to 4749 states and 6909 transitions. [2025-01-10 00:28:21,587 INFO L78 Accepts]: Start accepts. Automaton has 4749 states and 6909 transitions. Word has length 94 [2025-01-10 00:28:21,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:21,587 INFO L471 AbstractCegarLoop]: Abstraction has 4749 states and 6909 transitions. [2025-01-10 00:28:21,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 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) [2025-01-10 00:28:21,587 INFO L276 IsEmpty]: Start isEmpty. Operand 4749 states and 6909 transitions. [2025-01-10 00:28:21,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-01-10 00:28:21,588 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:21,588 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] [2025-01-10 00:28:21,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-01-10 00:28:21,588 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:21,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:21,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1569626486, now seen corresponding path program 1 times [2025-01-10 00:28:21,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:21,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890967016] [2025-01-10 00:28:21,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:21,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:21,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-01-10 00:28:21,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-01-10 00:28:21,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:21,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:21,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:21,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:21,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890967016] [2025-01-10 00:28:21,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890967016] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:28:21,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589119748] [2025-01-10 00:28:21,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:21,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:28:21,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:28:21,918 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:28:21,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-10 00:28:22,092 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-01-10 00:28:22,152 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-01-10 00:28:22,152 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:22,152 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:22,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-01-10 00:28:22,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:28:22,263 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-01-10 00:28:22,264 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 [2025-01-10 00:28:22,280 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 [2025-01-10 00:28:22,326 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:28:22,326 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 [2025-01-10 00:28:22,347 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 [2025-01-10 00:28:22,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:22,353 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:28:22,395 INFO L349 Elim1Store]: treesize reduction 5, result has 70.6 percent of original size [2025-01-10 00:28:22,395 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 21 treesize of output 20 [2025-01-10 00:28:22,401 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_660 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_660) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8)) |c_ULTIMATE.start_main_#t~mem55#1.base|)) is different from false [2025-01-10 00:28:22,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589119748] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:28:22,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:28:22,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 13 [2025-01-10 00:28:22,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245000538] [2025-01-10 00:28:22,404 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:28:22,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-10 00:28:22,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:22,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-10 00:28:22,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=151, Unknown=1, NotChecked=24, Total=210 [2025-01-10 00:28:22,405 INFO L87 Difference]: Start difference. First operand 4749 states and 6909 transitions. Second operand has 14 states, 12 states have (on average 9.0) internal successors, (108), 13 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-10 00:28:24,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:24,958 INFO L93 Difference]: Finished difference Result 4748 states and 6907 transitions. [2025-01-10 00:28:24,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-10 00:28:24,959 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.0) internal successors, (108), 13 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 95 [2025-01-10 00:28:24,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:24,965 INFO L225 Difference]: With dead ends: 4748 [2025-01-10 00:28:24,965 INFO L226 Difference]: Without dead ends: 4748 [2025-01-10 00:28:24,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=342, Unknown=1, NotChecked=38, Total=462 [2025-01-10 00:28:24,966 INFO L435 NwaCegarLoop]: 1886 mSDtfsCounter, 2677 mSDsluCounter, 13047 mSDsCounter, 0 mSdLazyCounter, 6997 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2695 SdHoareTripleChecker+Valid, 14933 SdHoareTripleChecker+Invalid, 7022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 6997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:24,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2695 Valid, 14933 Invalid, 7022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 6997 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-01-10 00:28:24,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4748 states. [2025-01-10 00:28:24,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4748 to 4748. [2025-01-10 00:28:25,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4748 states, 4004 states have (on average 1.7085414585414584) internal successors, (6841), 4719 states have internal predecessors, (6841), 27 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (39), 26 states have call predecessors, (39), 27 states have call successors, (39) [2025-01-10 00:28:25,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4748 states to 4748 states and 6907 transitions. [2025-01-10 00:28:25,008 INFO L78 Accepts]: Start accepts. Automaton has 4748 states and 6907 transitions. Word has length 95 [2025-01-10 00:28:25,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:25,008 INFO L471 AbstractCegarLoop]: Abstraction has 4748 states and 6907 transitions. [2025-01-10 00:28:25,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.0) internal successors, (108), 13 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-10 00:28:25,009 INFO L276 IsEmpty]: Start isEmpty. Operand 4748 states and 6907 transitions. [2025-01-10 00:28:25,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-01-10 00:28:25,009 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:25,009 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] [2025-01-10 00:28:25,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-10 00:28:25,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-01-10 00:28:25,213 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr83REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:25,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:25,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1569626485, now seen corresponding path program 1 times [2025-01-10 00:28:25,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:25,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110641891] [2025-01-10 00:28:25,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:25,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:25,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-01-10 00:28:25,251 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-01-10 00:28:25,253 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:25,253 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:25,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:25,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:25,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110641891] [2025-01-10 00:28:25,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110641891] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:28:25,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212888814] [2025-01-10 00:28:25,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:25,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:28:25,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:28:25,739 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:28:25,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-10 00:28:25,901 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-01-10 00:28:25,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-01-10 00:28:25,942 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:25,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:25,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 35 conjuncts are in the unsatisfiable core [2025-01-10 00:28:25,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:28:26,045 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-01-10 00:28:26,045 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 [2025-01-10 00:28:26,048 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 [2025-01-10 00:28:26,076 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 [2025-01-10 00:28:26,079 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 [2025-01-10 00:28:26,151 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 [2025-01-10 00:28:26,156 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 [2025-01-10 00:28:26,235 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:28:26,235 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 [2025-01-10 00:28:26,241 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 [2025-01-10 00:28:26,270 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 [2025-01-10 00:28:26,273 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 [2025-01-10 00:28:26,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:26,290 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:28:26,370 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_805 (Array Int Int)) (v_ArrVal_804 (Array Int Int))) (<= (+ 20 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_805) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_804) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_805 (Array Int Int))) (<= 0 (+ 16 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_805) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2025-01-10 00:28:26,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212888814] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:28:26,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:28:26,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 17 [2025-01-10 00:28:26,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635148370] [2025-01-10 00:28:26,372 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:28:26,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-10 00:28:26,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:26,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-10 00:28:26,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=324, Unknown=1, NotChecked=36, Total=420 [2025-01-10 00:28:26,373 INFO L87 Difference]: Start difference. First operand 4748 states and 6907 transitions. Second operand has 18 states, 15 states have (on average 8.0) internal successors, (120), 18 states have internal predecessors, (120), 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) [2025-01-10 00:28:30,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:30,920 INFO L93 Difference]: Finished difference Result 4755 states and 6913 transitions. [2025-01-10 00:28:30,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 00:28:30,920 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 8.0) internal successors, (120), 18 states have internal predecessors, (120), 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 95 [2025-01-10 00:28:30,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:30,924 INFO L225 Difference]: With dead ends: 4755 [2025-01-10 00:28:30,924 INFO L226 Difference]: Without dead ends: 4755 [2025-01-10 00:28:30,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=463, Unknown=1, NotChecked=44, Total=600 [2025-01-10 00:28:30,925 INFO L435 NwaCegarLoop]: 1891 mSDtfsCounter, 2671 mSDsluCounter, 17596 mSDsCounter, 0 mSdLazyCounter, 13391 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2689 SdHoareTripleChecker+Valid, 19487 SdHoareTripleChecker+Invalid, 13421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:30,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2689 Valid, 19487 Invalid, 13421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13391 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2025-01-10 00:28:30,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4755 states. [2025-01-10 00:28:30,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4755 to 4743. [2025-01-10 00:28:30,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4743 states, 4000 states have (on average 1.70875) internal successors, (6835), 4715 states have internal predecessors, (6835), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-10 00:28:30,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4743 states to 4743 states and 6889 transitions. [2025-01-10 00:28:30,965 INFO L78 Accepts]: Start accepts. Automaton has 4743 states and 6889 transitions. Word has length 95 [2025-01-10 00:28:30,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:30,966 INFO L471 AbstractCegarLoop]: Abstraction has 4743 states and 6889 transitions. [2025-01-10 00:28:30,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 8.0) internal successors, (120), 18 states have internal predecessors, (120), 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) [2025-01-10 00:28:30,966 INFO L276 IsEmpty]: Start isEmpty. Operand 4743 states and 6889 transitions. [2025-01-10 00:28:30,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-01-10 00:28:30,966 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:30,966 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] [2025-01-10 00:28:30,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-10 00:28:31,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:28:31,167 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr86REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:31,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:31,167 INFO L85 PathProgramCache]: Analyzing trace with hash 255286101, now seen corresponding path program 1 times [2025-01-10 00:28:31,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:31,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693906992] [2025-01-10 00:28:31,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:31,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:31,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-01-10 00:28:31,205 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-01-10 00:28:31,205 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:31,205 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:31,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:31,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:31,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693906992] [2025-01-10 00:28:31,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693906992] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:31,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:31,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-01-10 00:28:31,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714717889] [2025-01-10 00:28:31,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:31,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-10 00:28:31,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:31,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-10 00:28:31,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2025-01-10 00:28:31,525 INFO L87 Difference]: Start difference. First operand 4743 states and 6889 transitions. Second operand has 14 states, 12 states have (on average 7.916666666666667) internal successors, (95), 13 states have internal predecessors, (95), 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) [2025-01-10 00:28:33,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:33,924 INFO L93 Difference]: Finished difference Result 4762 states and 6921 transitions. [2025-01-10 00:28:33,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-10 00:28:33,925 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.916666666666667) internal successors, (95), 13 states have internal predecessors, (95), 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 97 [2025-01-10 00:28:33,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:33,930 INFO L225 Difference]: With dead ends: 4762 [2025-01-10 00:28:33,930 INFO L226 Difference]: Without dead ends: 4762 [2025-01-10 00:28:33,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2025-01-10 00:28:33,931 INFO L435 NwaCegarLoop]: 1885 mSDtfsCounter, 2679 mSDsluCounter, 13050 mSDsCounter, 0 mSdLazyCounter, 6978 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2697 SdHoareTripleChecker+Valid, 14935 SdHoareTripleChecker+Invalid, 7002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 6978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:33,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2697 Valid, 14935 Invalid, 7002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 6978 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-01-10 00:28:33,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4762 states. [2025-01-10 00:28:33,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4762 to 4758. [2025-01-10 00:28:33,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4758 states, 4014 states have (on average 1.7070254110612855) internal successors, (6852), 4728 states have internal predecessors, (6852), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (29), 26 states have call predecessors, (29), 27 states have call successors, (29) [2025-01-10 00:28:33,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4758 states to 4758 states and 6908 transitions. [2025-01-10 00:28:33,972 INFO L78 Accepts]: Start accepts. Automaton has 4758 states and 6908 transitions. Word has length 97 [2025-01-10 00:28:33,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:33,973 INFO L471 AbstractCegarLoop]: Abstraction has 4758 states and 6908 transitions. [2025-01-10 00:28:33,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.916666666666667) internal successors, (95), 13 states have internal predecessors, (95), 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) [2025-01-10 00:28:33,973 INFO L276 IsEmpty]: Start isEmpty. Operand 4758 states and 6908 transitions. [2025-01-10 00:28:33,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-01-10 00:28:33,973 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:33,973 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] [2025-01-10 00:28:33,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-01-10 00:28:33,973 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr87REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:33,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:33,974 INFO L85 PathProgramCache]: Analyzing trace with hash 255286102, now seen corresponding path program 1 times [2025-01-10 00:28:33,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:33,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575235566] [2025-01-10 00:28:33,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:33,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:33,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-01-10 00:28:34,011 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-01-10 00:28:34,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:34,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:34,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:34,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:34,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575235566] [2025-01-10 00:28:34,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575235566] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:34,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:34,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-10 00:28:34,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987225857] [2025-01-10 00:28:34,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:34,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-10 00:28:34,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:34,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-10 00:28:34,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-01-10 00:28:34,484 INFO L87 Difference]: Start difference. First operand 4758 states and 6908 transitions. Second operand has 11 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 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) [2025-01-10 00:28:37,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:37,151 INFO L93 Difference]: Finished difference Result 4761 states and 6919 transitions. [2025-01-10 00:28:37,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 00:28:37,151 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 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 97 [2025-01-10 00:28:37,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:37,158 INFO L225 Difference]: With dead ends: 4761 [2025-01-10 00:28:37,158 INFO L226 Difference]: Without dead ends: 4761 [2025-01-10 00:28:37,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2025-01-10 00:28:37,159 INFO L435 NwaCegarLoop]: 1892 mSDtfsCounter, 2655 mSDsluCounter, 10066 mSDsCounter, 0 mSdLazyCounter, 7182 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2673 SdHoareTripleChecker+Valid, 11958 SdHoareTripleChecker+Invalid, 7204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 7182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:37,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2673 Valid, 11958 Invalid, 7204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 7182 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-01-10 00:28:37,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4761 states. [2025-01-10 00:28:37,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4761 to 4758. [2025-01-10 00:28:37,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4758 states, 4014 states have (on average 1.7065271549576482) internal successors, (6850), 4728 states have internal predecessors, (6850), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (29), 26 states have call predecessors, (29), 27 states have call successors, (29) [2025-01-10 00:28:37,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4758 states to 4758 states and 6906 transitions. [2025-01-10 00:28:37,198 INFO L78 Accepts]: Start accepts. Automaton has 4758 states and 6906 transitions. Word has length 97 [2025-01-10 00:28:37,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:37,198 INFO L471 AbstractCegarLoop]: Abstraction has 4758 states and 6906 transitions. [2025-01-10 00:28:37,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 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) [2025-01-10 00:28:37,199 INFO L276 IsEmpty]: Start isEmpty. Operand 4758 states and 6906 transitions. [2025-01-10 00:28:37,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-01-10 00:28:37,199 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:37,199 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] [2025-01-10 00:28:37,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-01-10 00:28:37,199 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr86REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:37,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:37,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1433028522, now seen corresponding path program 1 times [2025-01-10 00:28:37,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:37,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215697412] [2025-01-10 00:28:37,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:37,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:37,220 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-01-10 00:28:37,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-01-10 00:28:37,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:37,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:37,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:37,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:37,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215697412] [2025-01-10 00:28:37,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215697412] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:28:37,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583515304] [2025-01-10 00:28:37,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:37,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:28:37,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:28:37,600 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:28:37,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-10 00:28:37,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-01-10 00:28:37,817 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-01-10 00:28:37,817 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:37,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:37,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-01-10 00:28:37,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:28:37,827 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 6 treesize of output 5 [2025-01-10 00:28:37,944 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-01-10 00:28:37,946 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 [2025-01-10 00:28:37,958 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 [2025-01-10 00:28:38,052 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:28:38,052 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 [2025-01-10 00:28:38,092 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:28:38,092 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 [2025-01-10 00:28:38,100 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 [2025-01-10 00:28:38,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:38,102 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:28:38,118 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1086 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1086) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2025-01-10 00:28:38,183 INFO L349 Elim1Store]: treesize reduction 5, result has 82.8 percent of original size [2025-01-10 00:28:38,183 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 33 treesize of output 32 [2025-01-10 00:28:38,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583515304] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:28:38,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:28:38,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 15 [2025-01-10 00:28:38,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103626866] [2025-01-10 00:28:38,214 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:28:38,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-01-10 00:28:38,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:38,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-01-10 00:28:38,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=251, Unknown=9, NotChecked=32, Total=342 [2025-01-10 00:28:38,215 INFO L87 Difference]: Start difference. First operand 4758 states and 6906 transitions. Second operand has 16 states, 14 states have (on average 10.214285714285714) internal successors, (143), 15 states have internal predecessors, (143), 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) [2025-01-10 00:28:40,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:40,668 INFO L93 Difference]: Finished difference Result 4760 states and 6917 transitions. [2025-01-10 00:28:40,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-10 00:28:40,669 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 10.214285714285714) internal successors, (143), 15 states have internal predecessors, (143), 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 98 [2025-01-10 00:28:40,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:40,674 INFO L225 Difference]: With dead ends: 4760 [2025-01-10 00:28:40,674 INFO L226 Difference]: Without dead ends: 4760 [2025-01-10 00:28:40,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=489, Unknown=9, NotChecked=46, Total=650 [2025-01-10 00:28:40,676 INFO L435 NwaCegarLoop]: 1885 mSDtfsCounter, 2642 mSDsluCounter, 14913 mSDsCounter, 0 mSdLazyCounter, 7822 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2660 SdHoareTripleChecker+Valid, 16798 SdHoareTripleChecker+Invalid, 7845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 7822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:40,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2660 Valid, 16798 Invalid, 7845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 7822 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-01-10 00:28:40,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4760 states. [2025-01-10 00:28:40,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4760 to 4757. [2025-01-10 00:28:40,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4757 states, 4014 states have (on average 1.7060288988540109) internal successors, (6848), 4727 states have internal predecessors, (6848), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (29), 26 states have call predecessors, (29), 27 states have call successors, (29) [2025-01-10 00:28:40,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4757 states to 4757 states and 6904 transitions. [2025-01-10 00:28:40,714 INFO L78 Accepts]: Start accepts. Automaton has 4757 states and 6904 transitions. Word has length 98 [2025-01-10 00:28:40,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:40,714 INFO L471 AbstractCegarLoop]: Abstraction has 4757 states and 6904 transitions. [2025-01-10 00:28:40,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 10.214285714285714) internal successors, (143), 15 states have internal predecessors, (143), 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) [2025-01-10 00:28:40,714 INFO L276 IsEmpty]: Start isEmpty. Operand 4757 states and 6904 transitions. [2025-01-10 00:28:40,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-01-10 00:28:40,714 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:40,714 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] [2025-01-10 00:28:40,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-10 00:28:40,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:28:40,915 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr87REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:40,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:40,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1433028521, now seen corresponding path program 1 times [2025-01-10 00:28:40,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:40,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650591421] [2025-01-10 00:28:40,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:40,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:40,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-01-10 00:28:40,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-01-10 00:28:40,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:40,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:41,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:41,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:41,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650591421] [2025-01-10 00:28:41,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650591421] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:28:41,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992572207] [2025-01-10 00:28:41,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:41,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:28:41,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:28:41,562 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:28:41,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-10 00:28:41,734 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-01-10 00:28:41,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-01-10 00:28:41,775 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:41,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:41,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 38 conjuncts are in the unsatisfiable core [2025-01-10 00:28:41,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:28:41,786 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 6 treesize of output 5 [2025-01-10 00:28:41,872 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-01-10 00:28:41,872 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 [2025-01-10 00:28:41,877 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 [2025-01-10 00:28:41,896 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 [2025-01-10 00:28:41,901 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 [2025-01-10 00:28:41,964 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 [2025-01-10 00:28:41,967 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 [2025-01-10 00:28:42,050 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:28:42,050 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 [2025-01-10 00:28:42,057 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 [2025-01-10 00:28:42,117 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:28:42,118 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 [2025-01-10 00:28:42,122 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 [2025-01-10 00:28:42,136 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 [2025-01-10 00:28:42,139 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 [2025-01-10 00:28:42,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:42,155 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:28:42,229 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1243 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1243) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 4))) (forall ((v_ArrVal_1243 (Array Int Int)) (v_ArrVal_1242 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1243) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 8) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1242) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2025-01-10 00:28:42,240 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$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1243 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1243) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 4))) (forall ((v_ArrVal_1243 (Array Int Int)) (v_ArrVal_1242 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1243) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_1242) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))) is different from false [2025-01-10 00:28:42,283 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1249 (Array Int Int)) (v_ArrVal_1248 (Array Int Int)) (v_ArrVal_1243 (Array Int Int)) (v_ArrVal_1242 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1249))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1248) .cse0 v_ArrVal_1243) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_1242) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1249 (Array Int Int)) (v_ArrVal_1248 (Array Int Int)) (v_ArrVal_1243 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1248) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1249) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1243) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 4))))) is different from false [2025-01-10 00:28:42,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992572207] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:28:42,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:28:42,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2025-01-10 00:28:42,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550363782] [2025-01-10 00:28:42,285 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:28:42,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-01-10 00:28:42,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:42,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-01-10 00:28:42,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=398, Unknown=3, NotChecked=126, Total=600 [2025-01-10 00:28:42,286 INFO L87 Difference]: Start difference. First operand 4757 states and 6904 transitions. Second operand has 20 states, 17 states have (on average 9.176470588235293) internal successors, (156), 20 states have internal predecessors, (156), 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) [2025-01-10 00:28:47,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:47,334 INFO L93 Difference]: Finished difference Result 4759 states and 6915 transitions. [2025-01-10 00:28:47,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-10 00:28:47,338 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 9.176470588235293) internal successors, (156), 20 states have internal predecessors, (156), 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 98 [2025-01-10 00:28:47,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:47,344 INFO L225 Difference]: With dead ends: 4759 [2025-01-10 00:28:47,344 INFO L226 Difference]: Without dead ends: 4759 [2025-01-10 00:28:47,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=595, Unknown=3, NotChecked=156, Total=870 [2025-01-10 00:28:47,345 INFO L435 NwaCegarLoop]: 1890 mSDtfsCounter, 2642 mSDsluCounter, 17917 mSDsCounter, 0 mSdLazyCounter, 12966 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2660 SdHoareTripleChecker+Valid, 19807 SdHoareTripleChecker+Invalid, 12993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 12966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:47,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2660 Valid, 19807 Invalid, 12993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 12966 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2025-01-10 00:28:47,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4759 states. [2025-01-10 00:28:47,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4759 to 4741. [2025-01-10 00:28:47,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4741 states, 4000 states have (on average 1.70775) internal successors, (6831), 4713 states have internal predecessors, (6831), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-10 00:28:47,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4741 states to 4741 states and 6885 transitions. [2025-01-10 00:28:47,388 INFO L78 Accepts]: Start accepts. Automaton has 4741 states and 6885 transitions. Word has length 98 [2025-01-10 00:28:47,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:47,389 INFO L471 AbstractCegarLoop]: Abstraction has 4741 states and 6885 transitions. [2025-01-10 00:28:47,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 9.176470588235293) internal successors, (156), 20 states have internal predecessors, (156), 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) [2025-01-10 00:28:47,389 INFO L276 IsEmpty]: Start isEmpty. Operand 4741 states and 6885 transitions. [2025-01-10 00:28:47,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-01-10 00:28:47,389 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:47,390 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] [2025-01-10 00:28:47,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-10 00:28:47,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-01-10 00:28:47,590 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr90REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:47,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:47,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1158175022, now seen corresponding path program 1 times [2025-01-10 00:28:47,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:47,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796578534] [2025-01-10 00:28:47,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:47,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:47,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-01-10 00:28:47,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-01-10 00:28:47,624 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:47,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:48,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:48,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:48,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796578534] [2025-01-10 00:28:48,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796578534] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:48,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:48,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-01-10 00:28:48,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500145571] [2025-01-10 00:28:48,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:48,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-01-10 00:28:48,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:48,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-01-10 00:28:48,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2025-01-10 00:28:48,118 INFO L87 Difference]: Start difference. First operand 4741 states and 6885 transitions. Second operand has 15 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 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) [2025-01-10 00:28:50,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:50,993 INFO L93 Difference]: Finished difference Result 4766 states and 6923 transitions. [2025-01-10 00:28:50,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-10 00:28:50,993 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 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 100 [2025-01-10 00:28:50,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:50,999 INFO L225 Difference]: With dead ends: 4766 [2025-01-10 00:28:50,999 INFO L226 Difference]: Without dead ends: 4766 [2025-01-10 00:28:50,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2025-01-10 00:28:51,000 INFO L435 NwaCegarLoop]: 1884 mSDtfsCounter, 2663 mSDsluCounter, 16736 mSDsCounter, 0 mSdLazyCounter, 8730 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2681 SdHoareTripleChecker+Valid, 18620 SdHoareTripleChecker+Invalid, 8754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 8730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:51,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2681 Valid, 18620 Invalid, 8754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 8730 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-01-10 00:28:51,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4766 states. [2025-01-10 00:28:51,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4766 to 4762. [2025-01-10 00:28:51,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4762 states, 4020 states have (on average 1.7049751243781095) internal successors, (6854), 4732 states have internal predecessors, (6854), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (29), 26 states have call predecessors, (29), 27 states have call successors, (29) [2025-01-10 00:28:51,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4762 states to 4762 states and 6910 transitions. [2025-01-10 00:28:51,038 INFO L78 Accepts]: Start accepts. Automaton has 4762 states and 6910 transitions. Word has length 100 [2025-01-10 00:28:51,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:51,038 INFO L471 AbstractCegarLoop]: Abstraction has 4762 states and 6910 transitions. [2025-01-10 00:28:51,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.538461538461538) internal successors, (98), 14 states have internal predecessors, (98), 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) [2025-01-10 00:28:51,038 INFO L276 IsEmpty]: Start isEmpty. Operand 4762 states and 6910 transitions. [2025-01-10 00:28:51,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-01-10 00:28:51,039 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:51,039 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] [2025-01-10 00:28:51,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-01-10 00:28:51,039 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr91REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:51,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:51,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1158175021, now seen corresponding path program 1 times [2025-01-10 00:28:51,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:51,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264404328] [2025-01-10 00:28:51,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:51,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:51,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-01-10 00:28:51,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-01-10 00:28:51,074 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:51,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:51,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:51,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:51,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264404328] [2025-01-10 00:28:51,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264404328] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:28:51,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:28:51,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-01-10 00:28:51,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706064579] [2025-01-10 00:28:51,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:28:51,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-10 00:28:51,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:51,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-10 00:28:51,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2025-01-10 00:28:51,550 INFO L87 Difference]: Start difference. First operand 4762 states and 6910 transitions. Second operand has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 12 states have internal predecessors, (98), 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) [2025-01-10 00:28:55,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:55,075 INFO L93 Difference]: Finished difference Result 4765 states and 6921 transitions. [2025-01-10 00:28:55,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 00:28:55,075 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 12 states have internal predecessors, (98), 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 100 [2025-01-10 00:28:55,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:55,081 INFO L225 Difference]: With dead ends: 4765 [2025-01-10 00:28:55,081 INFO L226 Difference]: Without dead ends: 4765 [2025-01-10 00:28:55,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2025-01-10 00:28:55,082 INFO L435 NwaCegarLoop]: 1891 mSDtfsCounter, 2655 mSDsluCounter, 13061 mSDsCounter, 0 mSdLazyCounter, 9648 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2673 SdHoareTripleChecker+Valid, 14952 SdHoareTripleChecker+Invalid, 9670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 9648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:55,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2673 Valid, 14952 Invalid, 9670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 9648 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2025-01-10 00:28:55,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4765 states. [2025-01-10 00:28:55,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4765 to 4762. [2025-01-10 00:28:55,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4762 states, 4020 states have (on average 1.7044776119402985) internal successors, (6852), 4732 states have internal predecessors, (6852), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (29), 26 states have call predecessors, (29), 27 states have call successors, (29) [2025-01-10 00:28:55,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4762 states to 4762 states and 6908 transitions. [2025-01-10 00:28:55,124 INFO L78 Accepts]: Start accepts. Automaton has 4762 states and 6908 transitions. Word has length 100 [2025-01-10 00:28:55,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:55,124 INFO L471 AbstractCegarLoop]: Abstraction has 4762 states and 6908 transitions. [2025-01-10 00:28:55,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 12 states have internal predecessors, (98), 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) [2025-01-10 00:28:55,125 INFO L276 IsEmpty]: Start isEmpty. Operand 4762 states and 6908 transitions. [2025-01-10 00:28:55,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-01-10 00:28:55,126 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:55,127 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] [2025-01-10 00:28:55,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-01-10 00:28:55,127 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr90REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:55,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:55,127 INFO L85 PathProgramCache]: Analyzing trace with hash 622894641, now seen corresponding path program 1 times [2025-01-10 00:28:55,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:55,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941556497] [2025-01-10 00:28:55,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:55,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:55,145 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-01-10 00:28:55,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-01-10 00:28:55,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:55,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:55,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:55,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:28:55,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941556497] [2025-01-10 00:28:55,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941556497] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:28:55,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203735384] [2025-01-10 00:28:55,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:55,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:28:55,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:28:55,607 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:28:55,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-10 00:28:55,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-01-10 00:28:55,853 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-01-10 00:28:55,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:55,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:28:55,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-01-10 00:28:55,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:28:55,863 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 6 treesize of output 5 [2025-01-10 00:28:55,939 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-01-10 00:28:55,939 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 [2025-01-10 00:28:55,944 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 [2025-01-10 00:28:55,983 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:28:55,983 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 [2025-01-10 00:28:56,015 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:28:56,015 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 [2025-01-10 00:28:56,047 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:28:56,048 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 [2025-01-10 00:28:56,056 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 [2025-01-10 00:28:56,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:28:56,058 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:28:56,091 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1555 (Array Int Int))) (= 1 (select |c_#valid| (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_1555) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))))) is different from false [2025-01-10 00:28:56,097 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1555 (Array Int Int)) (v_ArrVal_1554 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1554))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1555)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2025-01-10 00:28:56,135 INFO L349 Elim1Store]: treesize reduction 5, result has 90.6 percent of original size [2025-01-10 00:28:56,136 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 57 treesize of output 56 [2025-01-10 00:28:56,142 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1558 (Array Int Int)) (v_ArrVal_1555 (Array Int Int)) (v_ArrVal_1554 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~mem55#1.base| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1558))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1554)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1555)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) is different from false [2025-01-10 00:28:56,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203735384] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:28:56,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:28:56,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 17 [2025-01-10 00:28:56,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414590641] [2025-01-10 00:28:56,143 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:28:56,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-10 00:28:56,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:28:56,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-10 00:28:56,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=313, Unknown=11, NotChecked=114, Total=506 [2025-01-10 00:28:56,144 INFO L87 Difference]: Start difference. First operand 4762 states and 6908 transitions. Second operand has 18 states, 16 states have (on average 9.25) internal successors, (148), 17 states have internal predecessors, (148), 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) [2025-01-10 00:28:59,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:28:59,224 INFO L93 Difference]: Finished difference Result 4764 states and 6919 transitions. [2025-01-10 00:28:59,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-10 00:28:59,225 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 9.25) internal successors, (148), 17 states have internal predecessors, (148), 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 101 [2025-01-10 00:28:59,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:28:59,230 INFO L225 Difference]: With dead ends: 4764 [2025-01-10 00:28:59,231 INFO L226 Difference]: Without dead ends: 4764 [2025-01-10 00:28:59,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=622, Unknown=12, NotChecked=162, Total=930 [2025-01-10 00:28:59,232 INFO L435 NwaCegarLoop]: 1884 mSDtfsCounter, 2636 mSDsluCounter, 18619 mSDsCounter, 0 mSdLazyCounter, 9597 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2654 SdHoareTripleChecker+Valid, 20503 SdHoareTripleChecker+Invalid, 9620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 9597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2025-01-10 00:28:59,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2654 Valid, 20503 Invalid, 9620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 9597 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2025-01-10 00:28:59,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4764 states. [2025-01-10 00:28:59,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4764 to 4761. [2025-01-10 00:28:59,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4761 states, 4020 states have (on average 1.7039800995024876) internal successors, (6850), 4731 states have internal predecessors, (6850), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (29), 26 states have call predecessors, (29), 27 states have call successors, (29) [2025-01-10 00:28:59,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4761 states to 4761 states and 6906 transitions. [2025-01-10 00:28:59,270 INFO L78 Accepts]: Start accepts. Automaton has 4761 states and 6906 transitions. Word has length 101 [2025-01-10 00:28:59,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:28:59,270 INFO L471 AbstractCegarLoop]: Abstraction has 4761 states and 6906 transitions. [2025-01-10 00:28:59,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 9.25) internal successors, (148), 17 states have internal predecessors, (148), 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) [2025-01-10 00:28:59,270 INFO L276 IsEmpty]: Start isEmpty. Operand 4761 states and 6906 transitions. [2025-01-10 00:28:59,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-01-10 00:28:59,271 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:28:59,271 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] [2025-01-10 00:28:59,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-10 00:28:59,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-01-10 00:28:59,471 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr91REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:28:59,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:28:59,472 INFO L85 PathProgramCache]: Analyzing trace with hash 622894642, now seen corresponding path program 1 times [2025-01-10 00:28:59,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:28:59,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92755494] [2025-01-10 00:28:59,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:28:59,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:28:59,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-01-10 00:28:59,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-01-10 00:28:59,501 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:28:59,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:00,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:00,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:29:00,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92755494] [2025-01-10 00:29:00,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92755494] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:29:00,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416442580] [2025-01-10 00:29:00,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:00,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:00,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:00,169 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:29:00,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-10 00:29:00,348 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-01-10 00:29:00,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-01-10 00:29:00,393 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:00,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:00,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-01-10 00:29:00,398 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:29:00,405 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 6 treesize of output 5 [2025-01-10 00:29:00,510 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-01-10 00:29:00,511 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 [2025-01-10 00:29:00,516 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 [2025-01-10 00:29:00,533 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 [2025-01-10 00:29:00,537 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 [2025-01-10 00:29:00,599 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 [2025-01-10 00:29:00,602 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 [2025-01-10 00:29:00,674 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:29:00,674 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 [2025-01-10 00:29:00,678 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 [2025-01-10 00:29:00,730 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:29:00,731 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 [2025-01-10 00:29:00,734 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 [2025-01-10 00:29:00,773 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:29:00,773 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 [2025-01-10 00:29:00,779 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 [2025-01-10 00:29:00,789 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 [2025-01-10 00:29:00,791 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 [2025-01-10 00:29:00,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:00,804 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:29:00,845 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1725 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_1725) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 8))) (forall ((v_ArrVal_1725 (Array Int Int)) (v_ArrVal_1726 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_1725) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_1726) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2025-01-10 00:29:00,854 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$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1725 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1725) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8))) (forall ((v_ArrVal_1725 (Array Int Int)) (v_ArrVal_1726 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1725) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_1726) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))) is different from false [2025-01-10 00:29:00,869 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1725 (Array Int Int)) (v_ArrVal_1724 (Array Int Int)) (v_ArrVal_1723 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1724) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1723) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_1725) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 8))) (forall ((v_ArrVal_1725 (Array Int Int)) (v_ArrVal_1724 (Array Int Int)) (v_ArrVal_1723 (Array Int Int)) (v_ArrVal_1726 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1723))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem57#1.base| v_ArrVal_1724) .cse1 v_ArrVal_1725) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 12) (select |c_#length| (select (select (store .cse2 .cse1 v_ArrVal_1726) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))))) is different from false [2025-01-10 00:29:00,955 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1725 (Array Int Int)) (v_ArrVal_1724 (Array Int Int)) (v_ArrVal_1723 (Array Int Int)) (v_ArrVal_1732 (Array Int Int)) (v_ArrVal_1731 (Array Int Int)) (v_ArrVal_1726 (Array Int Int))) (let ((.cse4 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1732))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_1723))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (<= (+ 12 (select (select (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1731) .cse0 v_ArrVal_1724) .cse1 v_ArrVal_1725) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_1726) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_1725 (Array Int Int)) (v_ArrVal_1724 (Array Int Int)) (v_ArrVal_1723 (Array Int Int)) (v_ArrVal_1732 (Array Int Int)) (v_ArrVal_1731 (Array Int Int))) (<= 0 (+ 8 (select (select (let ((.cse6 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1732))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_1731) .cse5 v_ArrVal_1724) (select (select (store .cse6 .cse5 v_ArrVal_1723) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_1725))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2025-01-10 00:29:00,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416442580] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:29:00,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:29:00,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2025-01-10 00:29:00,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67034708] [2025-01-10 00:29:00,957 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:29:00,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-01-10 00:29:00,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:29:00,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-01-10 00:29:00,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=513, Unknown=9, NotChecked=196, Total=812 [2025-01-10 00:29:00,958 INFO L87 Difference]: Start difference. First operand 4761 states and 6906 transitions. Second operand has 22 states, 19 states have (on average 8.526315789473685) internal successors, (162), 22 states have internal predecessors, (162), 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) [2025-01-10 00:29:06,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:06,332 INFO L93 Difference]: Finished difference Result 4763 states and 6917 transitions. [2025-01-10 00:29:06,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-10 00:29:06,332 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 8.526315789473685) internal successors, (162), 22 states have internal predecessors, (162), 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 101 [2025-01-10 00:29:06,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:06,336 INFO L225 Difference]: With dead ends: 4763 [2025-01-10 00:29:06,336 INFO L226 Difference]: Without dead ends: 4763 [2025-01-10 00:29:06,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=152, Invalid=785, Unknown=9, NotChecked=244, Total=1190 [2025-01-10 00:29:06,337 INFO L435 NwaCegarLoop]: 1889 mSDtfsCounter, 2638 mSDsluCounter, 19089 mSDsCounter, 0 mSdLazyCounter, 14578 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2656 SdHoareTripleChecker+Valid, 20978 SdHoareTripleChecker+Invalid, 14606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 14578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:06,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2656 Valid, 20978 Invalid, 14606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 14578 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2025-01-10 00:29:06,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4763 states. [2025-01-10 00:29:06,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4763 to 4739. [2025-01-10 00:29:06,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4739 states, 4000 states have (on average 1.70675) internal successors, (6827), 4711 states have internal predecessors, (6827), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2025-01-10 00:29:06,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4739 states to 4739 states and 6881 transitions. [2025-01-10 00:29:06,371 INFO L78 Accepts]: Start accepts. Automaton has 4739 states and 6881 transitions. Word has length 101 [2025-01-10 00:29:06,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:06,371 INFO L471 AbstractCegarLoop]: Abstraction has 4739 states and 6881 transitions. [2025-01-10 00:29:06,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 8.526315789473685) internal successors, (162), 22 states have internal predecessors, (162), 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) [2025-01-10 00:29:06,371 INFO L276 IsEmpty]: Start isEmpty. Operand 4739 states and 6881 transitions. [2025-01-10 00:29:06,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-01-10 00:29:06,371 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:06,371 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] [2025-01-10 00:29:06,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-10 00:29:06,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-01-10 00:29:06,572 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr94REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:29:06,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:06,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1719113380, now seen corresponding path program 1 times [2025-01-10 00:29:06,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:29:06,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644901918] [2025-01-10 00:29:06,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:06,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:29:06,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-01-10 00:29:06,602 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-01-10 00:29:06,602 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:06,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:06,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:06,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:29:06,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644901918] [2025-01-10 00:29:06,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644901918] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:29:06,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:29:06,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-10 00:29:06,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097332260] [2025-01-10 00:29:06,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:29:06,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-10 00:29:06,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:29:06,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-10 00:29:06,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-01-10 00:29:06,869 INFO L87 Difference]: Start difference. First operand 4739 states and 6881 transitions. Second operand has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 13 states have internal predecessors, (101), 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) [2025-01-10 00:29:09,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:09,050 INFO L93 Difference]: Finished difference Result 4770 states and 6925 transitions. [2025-01-10 00:29:09,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 00:29:09,051 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 13 states have internal predecessors, (101), 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 103 [2025-01-10 00:29:09,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:09,056 INFO L225 Difference]: With dead ends: 4770 [2025-01-10 00:29:09,056 INFO L226 Difference]: Without dead ends: 4770 [2025-01-10 00:29:09,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2025-01-10 00:29:09,056 INFO L435 NwaCegarLoop]: 1889 mSDtfsCounter, 2663 mSDsluCounter, 13029 mSDsCounter, 0 mSdLazyCounter, 6971 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2681 SdHoareTripleChecker+Valid, 14918 SdHoareTripleChecker+Invalid, 6995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 6971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:09,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2681 Valid, 14918 Invalid, 6995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 6971 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-01-10 00:29:09,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4770 states. [2025-01-10 00:29:09,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4770 to 4766. [2025-01-10 00:29:09,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4766 states, 4026 states have (on average 1.702930948832588) internal successors, (6856), 4736 states have internal predecessors, (6856), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (29), 26 states have call predecessors, (29), 27 states have call successors, (29) [2025-01-10 00:29:09,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4766 states to 4766 states and 6912 transitions. [2025-01-10 00:29:09,098 INFO L78 Accepts]: Start accepts. Automaton has 4766 states and 6912 transitions. Word has length 103 [2025-01-10 00:29:09,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:09,098 INFO L471 AbstractCegarLoop]: Abstraction has 4766 states and 6912 transitions. [2025-01-10 00:29:09,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 13 states have internal predecessors, (101), 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) [2025-01-10 00:29:09,098 INFO L276 IsEmpty]: Start isEmpty. Operand 4766 states and 6912 transitions. [2025-01-10 00:29:09,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-01-10 00:29:09,098 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:09,099 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] [2025-01-10 00:29:09,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-01-10 00:29:09,099 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr95REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:29:09,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:09,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1719113379, now seen corresponding path program 1 times [2025-01-10 00:29:09,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:29:09,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007027045] [2025-01-10 00:29:09,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:09,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:29:09,115 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-01-10 00:29:09,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-01-10 00:29:09,125 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:09,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:09,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:09,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:29:09,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007027045] [2025-01-10 00:29:09,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007027045] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 00:29:09,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 00:29:09,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-10 00:29:09,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879136296] [2025-01-10 00:29:09,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 00:29:09,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-10 00:29:09,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:29:09,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-10 00:29:09,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-01-10 00:29:09,620 INFO L87 Difference]: Start difference. First operand 4766 states and 6912 transitions. Second operand has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 13 states have internal predecessors, (101), 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) [2025-01-10 00:29:12,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:12,404 INFO L93 Difference]: Finished difference Result 4769 states and 6923 transitions. [2025-01-10 00:29:12,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-10 00:29:12,404 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 13 states have internal predecessors, (101), 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 103 [2025-01-10 00:29:12,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:12,408 INFO L225 Difference]: With dead ends: 4769 [2025-01-10 00:29:12,408 INFO L226 Difference]: Without dead ends: 4769 [2025-01-10 00:29:12,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2025-01-10 00:29:12,409 INFO L435 NwaCegarLoop]: 1890 mSDtfsCounter, 2657 mSDsluCounter, 9732 mSDsCounter, 0 mSdLazyCounter, 7541 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2675 SdHoareTripleChecker+Valid, 11622 SdHoareTripleChecker+Invalid, 7563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 7541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:12,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2675 Valid, 11622 Invalid, 7563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 7541 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-01-10 00:29:12,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4769 states. [2025-01-10 00:29:12,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4769 to 4766. [2025-01-10 00:29:12,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4766 states, 4026 states have (on average 1.702434177844014) internal successors, (6854), 4736 states have internal predecessors, (6854), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (29), 26 states have call predecessors, (29), 27 states have call successors, (29) [2025-01-10 00:29:12,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4766 states to 4766 states and 6910 transitions. [2025-01-10 00:29:12,458 INFO L78 Accepts]: Start accepts. Automaton has 4766 states and 6910 transitions. Word has length 103 [2025-01-10 00:29:12,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:12,458 INFO L471 AbstractCegarLoop]: Abstraction has 4766 states and 6910 transitions. [2025-01-10 00:29:12,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 13 states have internal predecessors, (101), 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) [2025-01-10 00:29:12,458 INFO L276 IsEmpty]: Start isEmpty. Operand 4766 states and 6910 transitions. [2025-01-10 00:29:12,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-01-10 00:29:12,459 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:12,459 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] [2025-01-10 00:29:12,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-01-10 00:29:12,459 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr94REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:29:12,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:12,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1898757731, now seen corresponding path program 1 times [2025-01-10 00:29:12,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:29:12,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427607663] [2025-01-10 00:29:12,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:12,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:29:12,482 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-01-10 00:29:12,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-01-10 00:29:12,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:12,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:12,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:12,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 00:29:12,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427607663] [2025-01-10 00:29:12,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427607663] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:29:12,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106771414] [2025-01-10 00:29:12,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:12,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:12,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:29:12,915 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 00:29:12,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-10 00:29:13,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-01-10 00:29:13,161 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-01-10 00:29:13,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:13,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 00:29:13,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-01-10 00:29:13,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 00:29:13,168 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 6 treesize of output 5 [2025-01-10 00:29:13,241 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-01-10 00:29:13,241 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 [2025-01-10 00:29:13,247 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 [2025-01-10 00:29:13,288 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:29:13,288 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 [2025-01-10 00:29:13,328 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:29:13,328 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 [2025-01-10 00:29:13,355 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:29:13,355 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 [2025-01-10 00:29:13,381 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-01-10 00:29:13,382 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 [2025-01-10 00:29:13,388 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 [2025-01-10 00:29:13,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 00:29:13,389 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 00:29:13,394 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2063 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem59#1.base| v_ArrVal_2063) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2025-01-10 00:29:13,415 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2063 (Array Int Int)) (v_ArrVal_2062 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem58#1.base| v_ArrVal_2062))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2063)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2025-01-10 00:29:13,528 INFO L349 Elim1Store]: treesize reduction 5, result has 95.0 percent of original size [2025-01-10 00:29:13,528 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 105 treesize of output 104 [2025-01-10 00:29:13,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106771414] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 00:29:13,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-10 00:29:13,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 19 [2025-01-10 00:29:13,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850435012] [2025-01-10 00:29:13,562 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-10 00:29:13,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-01-10 00:29:13,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 00:29:13,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-01-10 00:29:13,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=463, Unknown=47, NotChecked=94, Total=702 [2025-01-10 00:29:13,563 INFO L87 Difference]: Start difference. First operand 4766 states and 6910 transitions. Second operand has 20 states, 18 states have (on average 8.5) internal successors, (153), 19 states have internal predecessors, (153), 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) [2025-01-10 00:29:16,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 00:29:16,571 INFO L93 Difference]: Finished difference Result 4768 states and 6921 transitions. [2025-01-10 00:29:16,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-10 00:29:16,571 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 8.5) internal successors, (153), 19 states have internal predecessors, (153), 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 104 [2025-01-10 00:29:16,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 00:29:16,575 INFO L225 Difference]: With dead ends: 4768 [2025-01-10 00:29:16,575 INFO L226 Difference]: Without dead ends: 4768 [2025-01-10 00:29:16,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=189, Invalid=894, Unknown=47, NotChecked=130, Total=1260 [2025-01-10 00:29:16,576 INFO L435 NwaCegarLoop]: 1883 mSDtfsCounter, 2632 mSDsluCounter, 18578 mSDsCounter, 0 mSdLazyCounter, 9544 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2650 SdHoareTripleChecker+Valid, 20461 SdHoareTripleChecker+Invalid, 9567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 9544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2025-01-10 00:29:16,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2650 Valid, 20461 Invalid, 9567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 9544 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2025-01-10 00:29:16,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4768 states. [2025-01-10 00:29:16,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4768 to 4765. [2025-01-10 00:29:16,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4765 states, 4026 states have (on average 1.7019374068554396) internal successors, (6852), 4735 states have internal predecessors, (6852), 27 states have call successors, (27), 4 states have call predecessors, (27), 5 states have return successors, (29), 26 states have call predecessors, (29), 27 states have call successors, (29) [2025-01-10 00:29:16,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4765 states to 4765 states and 6908 transitions. [2025-01-10 00:29:16,605 INFO L78 Accepts]: Start accepts. Automaton has 4765 states and 6908 transitions. Word has length 104 [2025-01-10 00:29:16,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 00:29:16,606 INFO L471 AbstractCegarLoop]: Abstraction has 4765 states and 6908 transitions. [2025-01-10 00:29:16,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 8.5) internal successors, (153), 19 states have internal predecessors, (153), 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) [2025-01-10 00:29:16,606 INFO L276 IsEmpty]: Start isEmpty. Operand 4765 states and 6908 transitions. [2025-01-10 00:29:16,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-01-10 00:29:16,606 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 00:29:16,606 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] [2025-01-10 00:29:16,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-10 00:29:16,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 00:29:16,807 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr95REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 983 more)] === [2025-01-10 00:29:16,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 00:29:16,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1898757730, now seen corresponding path program 1 times [2025-01-10 00:29:16,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 00:29:16,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668316838] [2025-01-10 00:29:16,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 00:29:16,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 00:29:16,824 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-01-10 00:29:16,836 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-01-10 00:29:16,836 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 00:29:16,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat