./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash db08682c30aec752483be6a01f1f927a34d978b2784f151bbe405368492dd0de --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 17:44:39,974 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:44:40,032 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 17:44:40,038 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:44:40,039 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:44:40,057 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:44:40,058 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:44:40,058 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:44:40,059 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:44:40,059 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:44:40,059 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:44:40,060 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:44:40,060 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:44:40,060 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:44:40,060 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:44:40,061 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:44:40,061 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:44:40,061 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:44:40,061 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:44:40,061 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:44:40,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:44:40,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:44:40,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:44:40,061 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:44:40,061 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:44:40,061 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:44:40,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:44:40,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:44:40,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:44:40,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:44:40,062 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:44:40,062 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:44:40,062 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:44:40,062 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:44:40,062 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:44:40,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:44:40,062 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:44:40,063 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:44:40,063 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:44:40,063 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:44:40,063 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/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 ! call(reach_error())) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db08682c30aec752483be6a01f1f927a34d978b2784f151bbe405368492dd0de [2025-03-08 17:44:40,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:44:40,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:44:40,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:44:40,289 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:44:40,289 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:44:40,290 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.i [2025-03-08 17:44:41,467 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48e6a0ac7/dfe64c785ce147a9aa489a9aa3c54446/FLAG63a171d58 [2025-03-08 17:44:41,942 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:44:41,944 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.i [2025-03-08 17:44:41,977 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48e6a0ac7/dfe64c785ce147a9aa489a9aa3c54446/FLAG63a171d58 [2025-03-08 17:44:41,990 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48e6a0ac7/dfe64c785ce147a9aa489a9aa3c54446 [2025-03-08 17:44:41,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:44:41,994 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:44:41,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:44:41,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:44:41,998 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:44:42,000 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:44:41" (1/1) ... [2025-03-08 17:44:42,001 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a1d0f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:42, skipping insertion in model container [2025-03-08 17:44:42,001 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:44:41" (1/1) ... [2025-03-08 17:44:42,071 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:44:42,246 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.i[4494,4507] [2025-03-08 17:44:42,253 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.i[4554,4567] [2025-03-08 17:44:42,763 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:42,763 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:42,763 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:42,764 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:42,764 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:42,781 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:42,782 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:42,783 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:42,785 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:42,786 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:42,791 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:42,791 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:42,791 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:43,092 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:43,096 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:43,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:44:43,164 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:44:43,177 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.i[4494,4507] [2025-03-08 17:44:43,182 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_front_harness.i[4554,4567] [2025-03-08 17:44:43,225 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:43,225 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:43,225 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:43,226 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:43,226 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:43,230 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:43,231 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:43,233 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:43,233 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:43,234 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:43,234 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:43,234 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:43,234 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:43,319 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:43,324 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:44:43,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7767-7778] [2025-03-08 17:44:43,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:44:43,524 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:44:43,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:43 WrapperNode [2025-03-08 17:44:43,525 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:44:43,526 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:44:43,526 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:44:43,526 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:44:43,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:43" (1/1) ... [2025-03-08 17:44:43,600 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:43" (1/1) ... [2025-03-08 17:44:43,671 INFO L138 Inliner]: procedures = 680, calls = 1682, calls flagged for inlining = 53, calls inlined = 8, statements flattened = 662 [2025-03-08 17:44:43,676 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:44:43,677 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:44:43,677 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:44:43,677 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:44:43,684 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:43" (1/1) ... [2025-03-08 17:44:43,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:43" (1/1) ... [2025-03-08 17:44:43,695 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:43" (1/1) ... [2025-03-08 17:44:43,760 INFO L175 MemorySlicer]: Split 314 memory accesses to 6 slices as follows [9, 238, 2, 56, 3, 6]. 76 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [5, 6, 2, 10, 1, 0]. The 239 writes are split as follows [1, 232, 0, 3, 1, 2]. [2025-03-08 17:44:43,761 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:43" (1/1) ... [2025-03-08 17:44:43,761 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:43" (1/1) ... [2025-03-08 17:44:43,793 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:43" (1/1) ... [2025-03-08 17:44:43,795 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:43" (1/1) ... [2025-03-08 17:44:43,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:43" (1/1) ... [2025-03-08 17:44:43,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:43" (1/1) ... [2025-03-08 17:44:43,815 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:44:43,817 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:44:43,817 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:44:43,817 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:44:43,818 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:43" (1/1) ... [2025-03-08 17:44:43,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:44:43,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:44:43,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 17:44:43,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 17:44:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 17:44:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-08 17:44:43,868 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-08 17:44:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-08 17:44:43,868 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-08 17:44:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 17:44:43,868 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 17:44:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 17:44:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 17:44:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 17:44:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 17:44:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 17:44:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 17:44:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 17:44:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 17:44:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 17:44:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 17:44:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 17:44:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 17:44:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-08 17:44:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-08 17:44:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 17:44:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 17:44:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 17:44:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:44:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 17:44:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 17:44:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 17:44:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 17:44:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 17:44:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 17:44:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-03-08 17:44:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-03-08 17:44:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:44:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:44:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 17:44:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 17:44:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-08 17:44:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-08 17:44:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-08 17:44:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-08 17:44:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-08 17:44:43,872 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-08 17:44:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 17:44:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 17:44:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 17:44:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 17:44:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 17:44:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 17:44:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-03-08 17:44:43,873 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-03-08 17:44:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-03-08 17:44:43,873 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-03-08 17:44:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 17:44:43,873 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 17:44:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-03-08 17:44:43,873 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-03-08 17:44:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 17:44:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 17:44:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 17:44:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 17:44:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 17:44:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 17:44:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 17:44:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 17:44:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 17:44:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 17:44:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 17:44:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 17:44:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 17:44:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 17:44:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 17:44:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-08 17:44:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-08 17:44:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 17:44:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 17:44:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 17:44:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 17:44:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 17:44:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 17:44:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-08 17:44:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-08 17:44:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:44:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 17:44:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 17:44:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 17:44:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 17:44:43,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 17:44:44,100 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:44:44,102 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:44:44,137 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-08 17:44:44,159 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-08 17:44:44,183 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-08 17:44:44,227 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2796: havoc #t~ret81;havoc #t~ite83.base, #t~ite83.offset;havoc #t~ret82.base, #t~ret82.offset; [2025-03-08 17:44:44,311 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-03-08 17:44:44,314 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 17:44:44,336 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7388: havoc #t~ret687.base, #t~ret687.offset; [2025-03-08 17:44:49,533 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3342: havoc aws_array_list_front_#t~ret180#1; [2025-03-08 17:44:49,600 INFO L? ?]: Removed 131 outVars from TransFormulas that were not future-live. [2025-03-08 17:44:49,600 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:44:49,615 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:44:49,616 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:44:49,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:44:49 BoogieIcfgContainer [2025-03-08 17:44:49,617 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:44:49,619 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:44:49,620 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:44:49,623 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:44:49,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:44:41" (1/3) ... [2025-03-08 17:44:49,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e33ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:44:49, skipping insertion in model container [2025-03-08 17:44:49,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:44:43" (2/3) ... [2025-03-08 17:44:49,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e33ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:44:49, skipping insertion in model container [2025-03-08 17:44:49,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:44:49" (3/3) ... [2025-03-08 17:44:49,627 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_front_harness.i [2025-03-08 17:44:49,640 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:44:49,642 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_front_harness.i that has 18 procedures, 186 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 17:44:49,701 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:44:49,712 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=LoopHeads, 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;@742012d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:44:49,713 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 17:44:49,718 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 111 states have (on average 1.1981981981981982) internal successors, (133), 112 states have internal predecessors, (133), 56 states have call successors, (56), 17 states have call predecessors, (56), 17 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2025-03-08 17:44:49,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-08 17:44:49,729 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:44:49,730 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:44:49,730 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:44:49,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:44:49,736 INFO L85 PathProgramCache]: Analyzing trace with hash -411417386, now seen corresponding path program 1 times [2025-03-08 17:44:49,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:44:49,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029509153] [2025-03-08 17:44:49,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:44:49,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:44:54,044 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-08 17:44:54,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-08 17:44:54,326 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:44:54,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:44:54,728 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2025-03-08 17:44:54,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:44:54,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029509153] [2025-03-08 17:44:54,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029509153] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:44:54,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366794033] [2025-03-08 17:44:54,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:44:54,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:44:54,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:44:54,732 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 17:44:54,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 17:44:58,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-08 17:44:59,117 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-08 17:44:59,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:44:59,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:44:59,138 INFO L256 TraceCheckSpWp]: Trace formula consists of 4252 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 17:44:59,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:44:59,165 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2025-03-08 17:44:59,166 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 17:44:59,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366794033] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:44:59,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 17:44:59,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 17:44:59,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382093498] [2025-03-08 17:44:59,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:44:59,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 17:44:59,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:44:59,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 17:44:59,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 17:44:59,189 INFO L87 Difference]: Start difference. First operand has 186 states, 111 states have (on average 1.1981981981981982) internal successors, (133), 112 states have internal predecessors, (133), 56 states have call successors, (56), 17 states have call predecessors, (56), 17 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-03-08 17:44:59,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:44:59,219 INFO L93 Difference]: Finished difference Result 365 states and 519 transitions. [2025-03-08 17:44:59,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 17:44:59,220 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 129 [2025-03-08 17:44:59,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:44:59,226 INFO L225 Difference]: With dead ends: 365 [2025-03-08 17:44:59,226 INFO L226 Difference]: Without dead ends: 177 [2025-03-08 17:44:59,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 17:44:59,231 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 17:44:59,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 17:44:59,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2025-03-08 17:44:59,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2025-03-08 17:44:59,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 104 states have (on average 1.1634615384615385) internal successors, (121), 105 states have internal predecessors, (121), 56 states have call successors, (56), 17 states have call predecessors, (56), 16 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2025-03-08 17:44:59,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 231 transitions. [2025-03-08 17:44:59,286 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 231 transitions. Word has length 129 [2025-03-08 17:44:59,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:44:59,286 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 231 transitions. [2025-03-08 17:44:59,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-03-08 17:44:59,286 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 231 transitions. [2025-03-08 17:44:59,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-08 17:44:59,293 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:44:59,293 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:44:59,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 17:44:59,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-08 17:44:59,494 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:44:59,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:44:59,495 INFO L85 PathProgramCache]: Analyzing trace with hash -381902376, now seen corresponding path program 1 times [2025-03-08 17:44:59,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:44:59,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174614335] [2025-03-08 17:44:59,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:44:59,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:45:03,162 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-08 17:45:03,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-08 17:45:03,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:45:03,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:45:05,557 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-03-08 17:45:05,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:45:05,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174614335] [2025-03-08 17:45:05,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174614335] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:45:05,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:45:05,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 17:45:05,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123918517] [2025-03-08 17:45:05,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:45:05,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 17:45:05,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:45:05,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 17:45:05,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 17:45:05,560 INFO L87 Difference]: Start difference. First operand 177 states and 231 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2025-03-08 17:45:06,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:45:06,036 INFO L93 Difference]: Finished difference Result 306 states and 403 transitions. [2025-03-08 17:45:06,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 17:45:06,037 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 129 [2025-03-08 17:45:06,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:45:06,040 INFO L225 Difference]: With dead ends: 306 [2025-03-08 17:45:06,040 INFO L226 Difference]: Without dead ends: 195 [2025-03-08 17:45:06,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-08 17:45:06,041 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 6 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 17:45:06,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1351 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 17:45:06,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2025-03-08 17:45:06,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 191. [2025-03-08 17:45:06,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 113 states have (on average 1.1592920353982301) internal successors, (131), 114 states have internal predecessors, (131), 60 states have call successors, (60), 17 states have call predecessors, (60), 17 states have return successors, (59), 59 states have call predecessors, (59), 58 states have call successors, (59) [2025-03-08 17:45:06,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 250 transitions. [2025-03-08 17:45:06,054 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 250 transitions. Word has length 129 [2025-03-08 17:45:06,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:45:06,054 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 250 transitions. [2025-03-08 17:45:06,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2025-03-08 17:45:06,054 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 250 transitions. [2025-03-08 17:45:06,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-08 17:45:06,056 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:45:06,056 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:45:06,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 17:45:06,056 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:45:06,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:45:06,057 INFO L85 PathProgramCache]: Analyzing trace with hash 56107127, now seen corresponding path program 1 times [2025-03-08 17:45:06,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:45:06,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524485667] [2025-03-08 17:45:06,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:45:06,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:45:09,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-08 17:45:09,926 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-08 17:45:09,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:45:09,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:45:12,202 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-03-08 17:45:12,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:45:12,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524485667] [2025-03-08 17:45:12,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524485667] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:45:12,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:45:12,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 17:45:12,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094201666] [2025-03-08 17:45:12,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:45:12,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 17:45:12,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:45:12,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 17:45:12,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-08 17:45:12,204 INFO L87 Difference]: Start difference. First operand 191 states and 250 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2025-03-08 17:45:12,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:45:12,874 INFO L93 Difference]: Finished difference Result 321 states and 426 transitions. [2025-03-08 17:45:12,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 17:45:12,875 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 129 [2025-03-08 17:45:12,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:45:12,877 INFO L225 Difference]: With dead ends: 321 [2025-03-08 17:45:12,877 INFO L226 Difference]: Without dead ends: 216 [2025-03-08 17:45:12,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-08 17:45:12,878 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 14 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 17:45:12,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1624 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 17:45:12,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2025-03-08 17:45:12,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 197. [2025-03-08 17:45:12,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 116 states have (on average 1.1551724137931034) internal successors, (134), 117 states have internal predecessors, (134), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (62), 62 states have call predecessors, (62), 61 states have call successors, (62) [2025-03-08 17:45:12,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 259 transitions. [2025-03-08 17:45:12,900 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 259 transitions. Word has length 129 [2025-03-08 17:45:12,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:45:12,900 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 259 transitions. [2025-03-08 17:45:12,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2025-03-08 17:45:12,900 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 259 transitions. [2025-03-08 17:45:12,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-08 17:45:12,902 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:45:12,902 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:45:12,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 17:45:12,902 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:45:12,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:45:12,903 INFO L85 PathProgramCache]: Analyzing trace with hash 2006407382, now seen corresponding path program 1 times [2025-03-08 17:45:12,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:45:12,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228244861] [2025-03-08 17:45:12,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:45:12,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:45:16,370 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-08 17:45:16,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-08 17:45:16,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:45:16,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:45:18,453 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2025-03-08 17:45:18,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:45:18,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228244861] [2025-03-08 17:45:18,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228244861] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:45:18,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235273701] [2025-03-08 17:45:18,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:45:18,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:45:18,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:45:18,456 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 17:45:18,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 17:45:22,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-08 17:45:23,060 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-08 17:45:23,061 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:45:23,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:45:23,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 4246 conjuncts, 55 conjuncts are in the unsatisfiable core [2025-03-08 17:45:23,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:45:25,284 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_ensure_array_list_has_allocated_data_member_~list.offset_8 Int)) (and (= (store |c_old(#memory_$Pointer$#3.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#3.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#3.base| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8))) |c_#memory_$Pointer$#3.base|) (<= v_ensure_array_list_has_allocated_data_member_~list.offset_8 |c_ensure_array_list_has_allocated_data_member_#in~list.offset|) (= |c_#memory_$Pointer$#3.offset| (store |c_old(#memory_$Pointer$#3.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| (store (select |c_old(#memory_$Pointer$#3.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8 (select (select |c_#memory_$Pointer$#3.offset| |c_ensure_array_list_has_allocated_data_member_#in~list.base|) v_ensure_array_list_has_allocated_data_member_~list.offset_8)))))) is different from true [2025-03-08 17:45:25,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 17:45:25,397 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 23 treesize of output 11 [2025-03-08 17:45:25,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-08 17:45:25,454 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 23 treesize of output 11 [2025-03-08 17:45:32,947 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 87 proven. 32 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2025-03-08 17:45:32,947 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 17:45:39,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235273701] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:45:39,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 17:45:39,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13] total 16 [2025-03-08 17:45:39,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793888734] [2025-03-08 17:45:39,553 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 17:45:39,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-08 17:45:39,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:45:39,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-08 17:45:39,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=536, Unknown=1, NotChecked=46, Total=650 [2025-03-08 17:45:39,555 INFO L87 Difference]: Start difference. First operand 197 states and 259 transitions. Second operand has 16 states, 14 states have (on average 7.0) internal successors, (98), 13 states have internal predecessors, (98), 8 states have call successors, (45), 5 states have call predecessors, (45), 7 states have return successors, (42), 7 states have call predecessors, (42), 8 states have call successors, (42) [2025-03-08 17:46:08,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:46:08,004 INFO L93 Difference]: Finished difference Result 477 states and 642 transitions. [2025-03-08 17:46:08,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-08 17:46:08,005 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 7.0) internal successors, (98), 13 states have internal predecessors, (98), 8 states have call successors, (45), 5 states have call predecessors, (45), 7 states have return successors, (42), 7 states have call predecessors, (42), 8 states have call successors, (42) Word has length 129 [2025-03-08 17:46:08,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:46:08,009 INFO L225 Difference]: With dead ends: 477 [2025-03-08 17:46:08,009 INFO L226 Difference]: Without dead ends: 375 [2025-03-08 17:46:08,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 194 SyntacticMatches, 25 SemanticMatches, 38 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=184, Invalid=1301, Unknown=1, NotChecked=74, Total=1560 [2025-03-08 17:46:08,011 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 235 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 2667 mSolverCounterSat, 144 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 3288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 2667 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 474 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2025-03-08 17:46:08,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 1148 Invalid, 3288 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [144 Valid, 2667 Invalid, 3 Unknown, 474 Unchecked, 24.6s Time] [2025-03-08 17:46:08,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2025-03-08 17:46:08,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2025-03-08 17:46:08,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 219 states have (on average 1.1461187214611872) internal successors, (251), 223 states have internal predecessors, (251), 118 states have call successors, (118), 32 states have call predecessors, (118), 35 states have return successors, (135), 117 states have call predecessors, (135), 114 states have call successors, (135) [2025-03-08 17:46:08,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 504 transitions. [2025-03-08 17:46:08,052 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 504 transitions. Word has length 129 [2025-03-08 17:46:08,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:46:08,052 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 504 transitions. [2025-03-08 17:46:08,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 7.0) internal successors, (98), 13 states have internal predecessors, (98), 8 states have call successors, (45), 5 states have call predecessors, (45), 7 states have return successors, (42), 7 states have call predecessors, (42), 8 states have call successors, (42) [2025-03-08 17:46:08,052 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 504 transitions. [2025-03-08 17:46:08,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-03-08 17:46:08,055 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:46:08,056 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:46:08,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-08 17:46:08,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-03-08 17:46:08,256 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:46:08,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:46:08,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1761278424, now seen corresponding path program 1 times [2025-03-08 17:46:08,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:46:08,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698410103] [2025-03-08 17:46:08,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:46:08,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:46:11,757 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-03-08 17:46:11,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-03-08 17:46:11,844 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:46:11,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat