./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 14:39:11,569 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 14:39:11,624 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-11 14:39:11,627 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 14:39:11,627 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 14:39:11,652 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 14:39:11,653 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 14:39:11,654 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 14:39:11,655 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 14:39:11,655 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 14:39:11,655 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 14:39:11,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 14:39:11,656 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 14:39:11,657 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 14:39:11,658 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 14:39:11,658 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 14:39:11,659 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 14:39:11,659 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 14:39:11,659 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 14:39:11,659 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 14:39:11,662 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 14:39:11,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 14:39:11,666 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 14:39:11,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 14:39:11,666 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 14:39:11,666 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 14:39:11,667 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 14:39:11,667 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 14:39:11,667 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 14:39:11,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:39:11,667 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 14:39:11,667 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 14:39:11,668 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 14:39:11,668 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 14:39:11,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 14:39:11,668 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 14:39:11,668 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 14:39:11,668 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 14:39:11,668 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 14:39:11,669 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b [2024-10-11 14:39:11,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 14:39:11,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 14:39:11,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 14:39:11,910 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 14:39:11,911 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 14:39:11,912 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2024-10-11 14:39:13,230 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 14:39:13,588 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 14:39:13,588 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2024-10-11 14:39:13,623 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f55183ccf/fe96b3e4859b4846b4001f0afff66eff/FLAGe97f6dac6 [2024-10-11 14:39:13,638 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f55183ccf/fe96b3e4859b4846b4001f0afff66eff [2024-10-11 14:39:13,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 14:39:13,642 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 14:39:13,644 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 14:39:13,644 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 14:39:13,649 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 14:39:13,649 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:39:13" (1/1) ... [2024-10-11 14:39:13,650 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cc24f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:39:13, skipping insertion in model container [2024-10-11 14:39:13,650 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:39:13" (1/1) ... [2024-10-11 14:39:13,721 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 14:39:13,947 WARN L248 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_ensure_capacity_harness.i[4504,4517] [2024-10-11 14:39:13,954 WARN L248 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_ensure_capacity_harness.i[4564,4577] [2024-10-11 14:39:14,615 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:14,616 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:14,616 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:14,619 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:14,620 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:14,634 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:14,635 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:14,636 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:14,637 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:14,638 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:14,640 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:14,641 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:14,642 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:14,970 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:14,970 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:14,974 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:14,978 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,013 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:39:15,043 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 14:39:15,060 WARN L248 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_ensure_capacity_harness.i[4504,4517] [2024-10-11 14:39:15,060 WARN L248 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_ensure_capacity_harness.i[4564,4577] [2024-10-11 14:39:15,092 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,092 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,093 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,093 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,093 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,097 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,097 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,098 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,098 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,099 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,099 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,099 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,100 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,150 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,151 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,151 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,154 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,160 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7775-7786] [2024-10-11 14:39:15,172 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:39:15,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:39:15,327 INFO L204 MainTranslator]: Completed translation [2024-10-11 14:39:15,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:39:15 WrapperNode [2024-10-11 14:39:15,328 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 14:39:15,328 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 14:39:15,329 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 14:39:15,329 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 14:39:15,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:39:15" (1/1) ... [2024-10-11 14:39:15,398 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:39:15" (1/1) ... [2024-10-11 14:39:15,476 INFO L138 Inliner]: procedures = 680, calls = 1673, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 810 [2024-10-11 14:39:15,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 14:39:15,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 14:39:15,479 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 14:39:15,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 14:39:15,490 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:39:15" (1/1) ... [2024-10-11 14:39:15,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:39:15" (1/1) ... [2024-10-11 14:39:15,502 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:39:15" (1/1) ... [2024-10-11 14:39:15,607 INFO L175 MemorySlicer]: Split 326 memory accesses to 7 slices as follows [236, 2, 2, 9, 65, 6, 6]. 72 percent of accesses are in the largest equivalence class. The 254 initializations are split as follows [236, 2, 0, 5, 10, 1, 0]. The 10 writes are split as follows [0, 0, 1, 1, 5, 1, 2]. [2024-10-11 14:39:15,607 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:39:15" (1/1) ... [2024-10-11 14:39:15,607 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:39:15" (1/1) ... [2024-10-11 14:39:15,636 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:39:15" (1/1) ... [2024-10-11 14:39:15,641 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:39:15" (1/1) ... [2024-10-11 14:39:15,651 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:39:15" (1/1) ... [2024-10-11 14:39:15,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:39:15" (1/1) ... [2024-10-11 14:39:15,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 14:39:15,665 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 14:39:15,665 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 14:39:15,665 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 14:39:15,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:39:15" (1/1) ... [2024-10-11 14:39:15,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:39:15,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:39:15,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 14:39:15,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 14:39:15,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 14:39:15,748 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-10-11 14:39:15,748 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-10-11 14:39:15,749 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-10-11 14:39:15,749 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-10-11 14:39:15,749 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-11 14:39:15,749 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-11 14:39:15,749 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-10-11 14:39:15,749 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-10-11 14:39:15,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 14:39:15,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 14:39:15,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 14:39:15,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 14:39:15,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-11 14:39:15,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-11 14:39:15,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-11 14:39:15,751 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-10-11 14:39:15,751 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-10-11 14:39:15,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 14:39:15,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 14:39:15,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 14:39:15,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 14:39:15,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 14:39:15,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 14:39:15,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-11 14:39:15,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-11 14:39:15,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-11 14:39:15,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-11 14:39:15,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-11 14:39:15,753 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-10-11 14:39:15,753 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-10-11 14:39:15,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 14:39:15,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 14:39:15,754 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-11 14:39:15,754 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-11 14:39:15,754 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-10-11 14:39:15,754 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-10-11 14:39:15,754 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-10-11 14:39:15,754 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-10-11 14:39:15,754 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-10-11 14:39:15,754 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-10-11 14:39:15,754 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-10-11 14:39:15,754 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-10-11 14:39:15,754 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 14:39:15,754 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 14:39:15,754 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-10-11 14:39:15,755 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-10-11 14:39:15,755 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2024-10-11 14:39:15,755 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2024-10-11 14:39:15,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 14:39:15,755 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-10-11 14:39:15,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-10-11 14:39:15,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 14:39:15,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 14:39:15,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-11 14:39:15,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-11 14:39:15,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-11 14:39:15,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-11 14:39:15,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-11 14:39:15,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-11 14:39:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-11 14:39:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-11 14:39:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-11 14:39:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-11 14:39:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-11 14:39:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-11 14:39:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-10-11 14:39:15,758 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-10-11 14:39:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-10-11 14:39:15,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-10-11 14:39:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-10-11 14:39:15,758 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-10-11 14:39:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_ensure_capacity [2024-10-11 14:39:15,758 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_ensure_capacity [2024-10-11 14:39:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 14:39:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 14:39:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 14:39:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 14:39:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-11 14:39:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-11 14:39:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-11 14:39:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-10-11 14:39:15,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-10-11 14:39:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 14:39:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 14:39:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 14:39:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 14:39:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 14:39:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-11 14:39:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-11 14:39:16,007 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 14:39:16,009 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 14:39:16,653 INFO L? ?]: Removed 156 outVars from TransFormulas that were not future-live. [2024-10-11 14:39:16,653 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 14:39:16,730 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 14:39:16,731 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 14:39:16,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:39:16 BoogieIcfgContainer [2024-10-11 14:39:16,732 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 14:39:16,733 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 14:39:16,734 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 14:39:16,737 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 14:39:16,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:39:13" (1/3) ... [2024-10-11 14:39:16,738 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b60a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:39:16, skipping insertion in model container [2024-10-11 14:39:16,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:39:15" (2/3) ... [2024-10-11 14:39:16,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b60a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:39:16, skipping insertion in model container [2024-10-11 14:39:16,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:39:16" (3/3) ... [2024-10-11 14:39:16,741 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_ensure_capacity_harness.i [2024-10-11 14:39:16,755 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 14:39:16,755 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 14:39:16,844 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 14:39:16,850 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;@25f805ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 14:39:16,850 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 14:39:16,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 220 states, 124 states have (on average 1.2419354838709677) internal successors, (154), 125 states have internal predecessors, (154), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-10-11 14:39:16,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-11 14:39:16,866 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:39:16,867 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 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] [2024-10-11 14:39:16,868 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:39:16,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:39:16,873 INFO L85 PathProgramCache]: Analyzing trace with hash 420474882, now seen corresponding path program 1 times [2024-10-11 14:39:16,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:39:16,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656204287] [2024-10-11 14:39:16,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:39:16,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:39:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:17,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:39:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:17,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 14:39:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:17,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 14:39:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:17,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:39:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:17,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:39:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:17,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 14:39:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:17,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 14:39:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:17,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 14:39:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:17,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 14:39:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:17,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 14:39:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:17,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 14:39:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:17,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 14:39:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:17,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:39:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:17,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 14:39:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:17,594 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-11 14:39:17,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:39:17,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656204287] [2024-10-11 14:39:17,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656204287] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:39:17,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:39:17,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 14:39:17,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372546343] [2024-10-11 14:39:17,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:39:17,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 14:39:17,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:39:17,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 14:39:17,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 14:39:17,628 INFO L87 Difference]: Start difference. First operand has 220 states, 124 states have (on average 1.2419354838709677) internal successors, (154), 125 states have internal predecessors, (154), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 14:39:19,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:39:19,093 INFO L93 Difference]: Finished difference Result 457 states and 675 transitions. [2024-10-11 14:39:19,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 14:39:19,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 82 [2024-10-11 14:39:19,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:39:19,104 INFO L225 Difference]: With dead ends: 457 [2024-10-11 14:39:19,104 INFO L226 Difference]: Without dead ends: 234 [2024-10-11 14:39:19,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-11 14:39:19,112 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 169 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 14:39:19,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 370 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 14:39:19,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-10-11 14:39:19,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 212. [2024-10-11 14:39:19,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 118 states have (on average 1.2118644067796611) internal successors, (143), 120 states have internal predecessors, (143), 73 states have call successors, (73), 21 states have call predecessors, (73), 20 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-10-11 14:39:19,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 286 transitions. [2024-10-11 14:39:19,178 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 286 transitions. Word has length 82 [2024-10-11 14:39:19,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:39:19,178 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 286 transitions. [2024-10-11 14:39:19,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 14:39:19,179 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 286 transitions. [2024-10-11 14:39:19,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-11 14:39:19,182 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:39:19,182 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 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] [2024-10-11 14:39:19,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 14:39:19,185 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:39:19,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:39:19,186 INFO L85 PathProgramCache]: Analyzing trace with hash 2136164800, now seen corresponding path program 1 times [2024-10-11 14:39:19,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:39:19,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795875763] [2024-10-11 14:39:19,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:39:19,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:39:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:19,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:39:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:19,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 14:39:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:19,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 14:39:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:19,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:39:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:19,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:39:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:19,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 14:39:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:19,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 14:39:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:19,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 14:39:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:19,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 14:39:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:19,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 14:39:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:19,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 14:39:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:19,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 14:39:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:19,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:39:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:19,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 14:39:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:19,745 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-11 14:39:19,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:39:19,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795875763] [2024-10-11 14:39:19,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795875763] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:39:19,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996932177] [2024-10-11 14:39:19,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:39:19,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:39:19,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:39:19,749 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:39:19,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 14:39:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:20,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 2231 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 14:39:20,115 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:39:20,173 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-11 14:39:20,173 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:39:20,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996932177] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:39:20,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:39:20,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-11 14:39:20,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159019779] [2024-10-11 14:39:20,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:39:20,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:39:20,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:39:20,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:39:20,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-11 14:39:20,181 INFO L87 Difference]: Start difference. First operand 212 states and 286 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-11 14:39:20,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:39:20,443 INFO L93 Difference]: Finished difference Result 402 states and 551 transitions. [2024-10-11 14:39:20,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 14:39:20,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 82 [2024-10-11 14:39:20,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:39:20,446 INFO L225 Difference]: With dead ends: 402 [2024-10-11 14:39:20,446 INFO L226 Difference]: Without dead ends: 214 [2024-10-11 14:39:20,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-11 14:39:20,448 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 29 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 14:39:20,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 921 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 14:39:20,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-10-11 14:39:20,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2024-10-11 14:39:20,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 119 states have (on average 1.2100840336134453) internal successors, (144), 122 states have internal predecessors, (144), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2024-10-11 14:39:20,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 297 transitions. [2024-10-11 14:39:20,470 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 297 transitions. Word has length 82 [2024-10-11 14:39:20,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:39:20,471 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 297 transitions. [2024-10-11 14:39:20,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-11 14:39:20,471 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 297 transitions. [2024-10-11 14:39:20,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 14:39:20,474 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:39:20,474 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:39:20,491 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 14:39:20,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:39:20,679 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:39:20,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:39:20,679 INFO L85 PathProgramCache]: Analyzing trace with hash -971790677, now seen corresponding path program 1 times [2024-10-11 14:39:20,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:39:20,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227788968] [2024-10-11 14:39:20,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:39:20,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:39:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:20,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:39:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:20,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 14:39:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:20,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 14:39:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:21,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:39:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:21,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:39:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:21,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 14:39:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:21,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:39:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:21,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:39:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:21,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 14:39:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:21,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 14:39:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:21,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 14:39:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:21,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 14:39:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:21,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 14:39:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:21,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 14:39:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:21,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:39:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:21,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 14:39:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:21,187 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-10-11 14:39:21,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:39:21,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227788968] [2024-10-11 14:39:21,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227788968] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:39:21,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903926803] [2024-10-11 14:39:21,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:39:21,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:39:21,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:39:21,193 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:39:21,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 14:39:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:21,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 2361 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 14:39:21,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:39:21,567 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-11 14:39:21,567 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:39:21,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903926803] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:39:21,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:39:21,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 8 [2024-10-11 14:39:21,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967200584] [2024-10-11 14:39:21,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:39:21,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:39:21,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:39:21,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:39:21,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 14:39:21,569 INFO L87 Difference]: Start difference. First operand 214 states and 297 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-11 14:39:21,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:39:21,728 INFO L93 Difference]: Finished difference Result 406 states and 576 transitions. [2024-10-11 14:39:21,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:39:21,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 95 [2024-10-11 14:39:21,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:39:21,731 INFO L225 Difference]: With dead ends: 406 [2024-10-11 14:39:21,732 INFO L226 Difference]: Without dead ends: 216 [2024-10-11 14:39:21,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 14:39:21,737 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 0 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 14:39:21,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 794 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 14:39:21,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-10-11 14:39:21,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2024-10-11 14:39:21,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 121 states have (on average 1.2066115702479339) internal successors, (146), 124 states have internal predecessors, (146), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2024-10-11 14:39:21,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 299 transitions. [2024-10-11 14:39:21,782 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 299 transitions. Word has length 95 [2024-10-11 14:39:21,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:39:21,784 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 299 transitions. [2024-10-11 14:39:21,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-11 14:39:21,784 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 299 transitions. [2024-10-11 14:39:21,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 14:39:21,789 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:39:21,789 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:39:21,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 14:39:21,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:39:21,990 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:39:21,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:39:21,991 INFO L85 PathProgramCache]: Analyzing trace with hash 2062259369, now seen corresponding path program 1 times [2024-10-11 14:39:21,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:39:21,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736853554] [2024-10-11 14:39:21,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:39:21,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:39:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:22,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:39:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:22,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 14:39:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:22,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 14:39:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:22,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:39:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:22,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:39:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:22,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 14:39:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:22,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:39:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:22,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:39:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:22,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 14:39:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:22,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 14:39:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:22,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 14:39:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:22,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 14:39:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:22,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 14:39:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:22,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 14:39:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:22,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:39:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:22,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 14:39:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:22,589 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-11 14:39:22,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:39:22,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736853554] [2024-10-11 14:39:22,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736853554] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:39:22,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541430424] [2024-10-11 14:39:22,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:39:22,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:39:22,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:39:22,592 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:39:22,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 14:39:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:22,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 2366 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 14:39:22,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:39:23,047 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-11 14:39:23,047 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:39:23,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541430424] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:39:23,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:39:23,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-10-11 14:39:23,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002333652] [2024-10-11 14:39:23,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:39:23,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 14:39:23,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:39:23,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 14:39:23,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-10-11 14:39:23,049 INFO L87 Difference]: Start difference. First operand 216 states and 299 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-11 14:39:23,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:39:23,434 INFO L93 Difference]: Finished difference Result 399 states and 550 transitions. [2024-10-11 14:39:23,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 14:39:23,434 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 95 [2024-10-11 14:39:23,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:39:23,436 INFO L225 Difference]: With dead ends: 399 [2024-10-11 14:39:23,436 INFO L226 Difference]: Without dead ends: 216 [2024-10-11 14:39:23,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-10-11 14:39:23,438 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 105 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 14:39:23,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 1273 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 14:39:23,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-10-11 14:39:23,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2024-10-11 14:39:23,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 121 states have (on average 1.2066115702479339) internal successors, (146), 124 states have internal predecessors, (146), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (74), 70 states have call predecessors, (74), 70 states have call successors, (74) [2024-10-11 14:39:23,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 293 transitions. [2024-10-11 14:39:23,456 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 293 transitions. Word has length 95 [2024-10-11 14:39:23,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:39:23,457 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 293 transitions. [2024-10-11 14:39:23,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-11 14:39:23,457 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 293 transitions. [2024-10-11 14:39:23,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-11 14:39:23,458 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:39:23,458 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:39:23,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 14:39:23,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:39:23,659 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:39:23,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:39:23,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1267850942, now seen corresponding path program 2 times [2024-10-11 14:39:23,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:39:23,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315718053] [2024-10-11 14:39:23,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:39:23,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:39:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:24,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:39:24,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:24,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 14:39:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:24,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 14:39:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:24,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:39:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:24,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:39:24,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:24,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 14:39:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:24,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:39:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:24,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:39:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:24,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 14:39:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:24,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 14:39:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:24,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:39:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:24,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:39:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:24,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:39:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:24,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 14:39:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:24,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 14:39:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:24,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 14:39:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:24,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:39:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:24,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 14:39:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:24,288 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-10-11 14:39:24,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:39:24,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315718053] [2024-10-11 14:39:24,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315718053] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:39:24,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048234229] [2024-10-11 14:39:24,290 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 14:39:24,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:39:24,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:39:24,291 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:39:24,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 14:39:24,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 14:39:24,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 14:39:24,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 1877 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 14:39:24,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:39:24,686 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-10-11 14:39:24,686 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:39:24,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048234229] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:39:24,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:39:24,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-11 14:39:24,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497178358] [2024-10-11 14:39:24,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:39:24,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:39:24,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:39:24,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:39:24,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-11 14:39:24,691 INFO L87 Difference]: Start difference. First operand 216 states and 293 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-11 14:39:24,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:39:24,889 INFO L93 Difference]: Finished difference Result 377 states and 503 transitions. [2024-10-11 14:39:24,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 14:39:24,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 108 [2024-10-11 14:39:24,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:39:24,891 INFO L225 Difference]: With dead ends: 377 [2024-10-11 14:39:24,892 INFO L226 Difference]: Without dead ends: 220 [2024-10-11 14:39:24,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-11 14:39:24,893 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 0 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 14:39:24,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1062 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 14:39:24,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-10-11 14:39:24,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2024-10-11 14:39:24,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 124 states have (on average 1.2016129032258065) internal successors, (149), 127 states have internal predecessors, (149), 73 states have call successors, (73), 21 states have call predecessors, (73), 22 states have return successors, (75), 71 states have call predecessors, (75), 70 states have call successors, (75) [2024-10-11 14:39:24,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 297 transitions. [2024-10-11 14:39:24,908 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 297 transitions. Word has length 108 [2024-10-11 14:39:24,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:39:24,908 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 297 transitions. [2024-10-11 14:39:24,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-11 14:39:24,909 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 297 transitions. [2024-10-11 14:39:24,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-11 14:39:24,910 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:39:24,910 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:39:24,925 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 14:39:25,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:39:25,111 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:39:25,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:39:25,111 INFO L85 PathProgramCache]: Analyzing trace with hash 700481865, now seen corresponding path program 1 times [2024-10-11 14:39:25,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:39:25,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673809079] [2024-10-11 14:39:25,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:39:25,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:39:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:39:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 14:39:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 14:39:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:39:25,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:39:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 14:39:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:39:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:39:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 14:39:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 14:39:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:39:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:39:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 14:39:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 14:39:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 14:39:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 14:39:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:39:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 14:39:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 14:39:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:25,713 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-10-11 14:39:25,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:39:25,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673809079] [2024-10-11 14:39:25,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673809079] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:39:25,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342864739] [2024-10-11 14:39:25,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:39:25,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:39:25,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:39:25,718 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:39:25,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 14:39:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:26,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 2498 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 14:39:26,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:39:26,239 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-10-11 14:39:26,240 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:39:26,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342864739] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:39:26,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:39:26,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2024-10-11 14:39:26,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642464170] [2024-10-11 14:39:26,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:39:26,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 14:39:26,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:39:26,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 14:39:26,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2024-10-11 14:39:26,242 INFO L87 Difference]: Start difference. First operand 220 states and 297 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2024-10-11 14:39:26,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:39:26,687 INFO L93 Difference]: Finished difference Result 404 states and 541 transitions. [2024-10-11 14:39:26,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 14:39:26,687 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) Word has length 112 [2024-10-11 14:39:26,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:39:26,689 INFO L225 Difference]: With dead ends: 404 [2024-10-11 14:39:26,689 INFO L226 Difference]: Without dead ends: 218 [2024-10-11 14:39:26,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2024-10-11 14:39:26,690 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 115 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 14:39:26,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 1508 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 14:39:26,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-10-11 14:39:26,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2024-10-11 14:39:26,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 123 states have (on average 1.1951219512195121) internal successors, (147), 125 states have internal predecessors, (147), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (71), 71 states have call predecessors, (71), 70 states have call successors, (71) [2024-10-11 14:39:26,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 291 transitions. [2024-10-11 14:39:26,703 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 291 transitions. Word has length 112 [2024-10-11 14:39:26,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:39:26,703 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 291 transitions. [2024-10-11 14:39:26,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2024-10-11 14:39:26,703 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 291 transitions. [2024-10-11 14:39:26,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-11 14:39:26,704 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:39:26,704 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-10-11 14:39:26,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 14:39:26,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:39:26,906 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:39:26,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:39:26,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1294103631, now seen corresponding path program 1 times [2024-10-11 14:39:26,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:39:26,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56478769] [2024-10-11 14:39:26,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:39:26,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:39:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 14:39:27,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1683329363] [2024-10-11 14:39:27,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:39:27,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:39:27,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:39:27,630 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:39:27,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 14:39:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:39:41,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 2768 conjuncts, 328 conjuncts are in the unsatisfiable core [2024-10-11 14:39:41,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:39:41,970 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 9 treesize of output 3 [2024-10-11 14:39:41,974 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 9 treesize of output 3 [2024-10-11 14:39:42,140 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 7 treesize of output 3 [2024-10-11 14:39:42,142 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 7 treesize of output 3 [2024-10-11 14:39:42,180 INFO L349 Elim1Store]: treesize reduction 98, result has 28.5 percent of original size [2024-10-11 14:39:42,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 56 treesize of output 73 [2024-10-11 14:40:02,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-11 14:40:10,853 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 67 treesize of output 55 [2024-10-11 14:40:39,591 WARN L286 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)