./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec0_product05.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec0_product05.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 74a12e124f66b10df64ef68155d31c3be83012aab827a45870f5335a6569b75a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 07:34:30,583 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 07:34:30,660 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 07:34:30,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 07:34:30,668 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 07:34:30,695 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 07:34:30,695 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 07:34:30,696 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 07:34:30,696 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 07:34:30,697 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 07:34:30,697 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 07:34:30,697 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 07:34:30,698 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 07:34:30,698 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 07:34:30,698 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 07:34:30,699 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 07:34:30,699 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 07:34:30,700 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 07:34:30,700 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 07:34:30,700 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 07:34:30,701 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 07:34:30,704 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 07:34:30,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 07:34:30,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 07:34:30,705 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 07:34:30,705 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 07:34:30,705 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 07:34:30,706 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 07:34:30,706 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 07:34:30,706 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 07:34:30,706 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 07:34:30,706 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 07:34:30,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:34:30,707 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 07:34:30,707 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 07:34:30,707 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 07:34:30,708 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 07:34:30,708 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 07:34:30,712 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 07:34:30,713 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 07:34:30,713 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 07:34:30,714 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 07:34:30,714 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74a12e124f66b10df64ef68155d31c3be83012aab827a45870f5335a6569b75a [2024-11-16 07:34:30,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 07:34:30,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 07:34:30,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 07:34:30,979 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 07:34:30,980 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 07:34:30,981 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_product05.cil.c [2024-11-16 07:34:32,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 07:34:32,832 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 07:34:32,834 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product05.cil.c [2024-11-16 07:34:32,858 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5648372d0/ba0f840ee8d9409e87a89581a7de02b3/FLAG417d29823 [2024-11-16 07:34:32,873 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5648372d0/ba0f840ee8d9409e87a89581a7de02b3 [2024-11-16 07:34:32,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 07:34:32,877 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 07:34:32,880 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 07:34:32,880 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 07:34:32,885 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 07:34:32,886 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:34:32" (1/1) ... [2024-11-16 07:34:32,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae3f85d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:32, skipping insertion in model container [2024-11-16 07:34:32,887 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:34:32" (1/1) ... [2024-11-16 07:34:32,938 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 07:34:33,206 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product05.cil.c[4289,4302] [2024-11-16 07:34:33,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:34:33,458 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 07:34:33,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-16 07:34:33,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [202] [2024-11-16 07:34:33,470 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [211] [2024-11-16 07:34:33,470 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [403] [2024-11-16 07:34:33,471 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [815] [2024-11-16 07:34:33,471 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [1181] [2024-11-16 07:34:33,471 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1201] [2024-11-16 07:34:33,471 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2279] [2024-11-16 07:34:33,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2435] [2024-11-16 07:34:33,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2452] [2024-11-16 07:34:33,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2515] [2024-11-16 07:34:33,482 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product05.cil.c[4289,4302] [2024-11-16 07:34:33,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:34:33,589 INFO L204 MainTranslator]: Completed translation [2024-11-16 07:34:33,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:33 WrapperNode [2024-11-16 07:34:33,589 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 07:34:33,590 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 07:34:33,591 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 07:34:33,591 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 07:34:33,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:33" (1/1) ... [2024-11-16 07:34:33,640 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:33" (1/1) ... [2024-11-16 07:34:33,676 INFO L138 Inliner]: procedures = 107, calls = 113, calls flagged for inlining = 37, calls inlined = 30, statements flattened = 586 [2024-11-16 07:34:33,677 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 07:34:33,678 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 07:34:33,678 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 07:34:33,678 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 07:34:33,688 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:33" (1/1) ... [2024-11-16 07:34:33,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:33" (1/1) ... [2024-11-16 07:34:33,692 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:33" (1/1) ... [2024-11-16 07:34:33,713 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 4]. The 0 writes are split as follows [0, 0]. [2024-11-16 07:34:33,714 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:33" (1/1) ... [2024-11-16 07:34:33,714 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:33" (1/1) ... [2024-11-16 07:34:33,731 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:33" (1/1) ... [2024-11-16 07:34:33,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:33" (1/1) ... [2024-11-16 07:34:33,738 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:33" (1/1) ... [2024-11-16 07:34:33,740 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:33" (1/1) ... [2024-11-16 07:34:33,749 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 07:34:33,750 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 07:34:33,751 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 07:34:33,751 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 07:34:33,752 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:33" (1/1) ... [2024-11-16 07:34:33,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:34:33,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:34:33,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 07:34:33,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 07:34:33,827 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-16 07:34:33,827 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-16 07:34:33,827 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-16 07:34:33,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-16 07:34:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-16 07:34:33,828 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-16 07:34:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-16 07:34:33,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-16 07:34:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 07:34:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-16 07:34:33,828 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-16 07:34:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-16 07:34:33,829 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-16 07:34:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-16 07:34:33,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-16 07:34:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 07:34:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 07:34:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 07:34:33,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 07:34:33,978 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 07:34:33,979 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 07:34:34,158 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2209-1: getClientForwardReceiver_#res#1 := getClientForwardReceiver_~retValue_acc~30#1; [2024-11-16 07:34:34,158 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L496-1: getEmailFrom_#res#1 := getEmailFrom_~retValue_acc~3#1; [2024-11-16 07:34:34,158 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L459-1: getEmailId_#res#1 := getEmailId_~retValue_acc~2#1; [2024-11-16 07:34:34,158 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2256-1: getClientId_#res#1 := getClientId_~retValue_acc~31#1; [2024-11-16 07:34:34,168 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2512-1: createEmail_#res#1 := createEmail_~retValue_acc~39#1; [2024-11-16 07:34:34,378 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2547-1: valid_product_#res#1 := valid_product_~retValue_acc~41#1; [2024-11-16 07:34:34,378 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2400-1: is_queue_empty_#res#1 := is_queue_empty_~retValue_acc~33#1; [2024-11-16 07:34:34,378 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2409-1: get_queued_client_#res#1 := get_queued_client_~retValue_acc~34#1; [2024-11-16 07:34:34,378 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2418-1: get_queued_email_#res#1 := get_queued_email_~retValue_acc~35#1; [2024-11-16 07:34:34,385 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L533: #res := ~retValue_acc~4; [2024-11-16 07:34:34,388 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2488: #res := ~retValue_acc~37; [2024-11-16 07:34:34,450 INFO L? ?]: Removed 172 outVars from TransFormulas that were not future-live. [2024-11-16 07:34:34,450 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 07:34:34,470 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 07:34:34,471 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 07:34:34,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:34:34 BoogieIcfgContainer [2024-11-16 07:34:34,473 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 07:34:34,476 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 07:34:34,476 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 07:34:34,479 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 07:34:34,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:34:32" (1/3) ... [2024-11-16 07:34:34,480 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:34:34, skipping insertion in model container [2024-11-16 07:34:34,480 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:34:33" (2/3) ... [2024-11-16 07:34:34,481 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56c96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:34:34, skipping insertion in model container [2024-11-16 07:34:34,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:34:34" (3/3) ... [2024-11-16 07:34:34,483 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product05.cil.c [2024-11-16 07:34:34,499 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 07:34:34,500 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 07:34:34,572 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 07:34:34,578 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;@5f764b33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 07:34:34,579 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 07:34:34,584 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 121 states have (on average 1.4297520661157024) internal successors, (173), 123 states have internal predecessors, (173), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 07:34:34,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-16 07:34:34,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:34,616 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-16 07:34:34,617 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:34,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:34,622 INFO L85 PathProgramCache]: Analyzing trace with hash -755643629, now seen corresponding path program 1 times [2024-11-16 07:34:34,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:34,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096681453] [2024-11-16 07:34:34,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:34,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:35,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:35,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:35,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:34:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:35,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 07:34:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:35,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 07:34:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:35,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:34:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:35,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 07:34:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:35,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 07:34:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:35,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 07:34:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:35,305 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-16 07:34:35,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:35,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096681453] [2024-11-16 07:34:35,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096681453] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:34:35,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743989503] [2024-11-16 07:34:35,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:35,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:34:35,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:34:35,311 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:34:35,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 07:34:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:35,594 INFO L255 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-16 07:34:35,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:34:35,629 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 07:34:35,630 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:34:35,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743989503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:35,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:34:35,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2024-11-16 07:34:35,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69827151] [2024-11-16 07:34:35,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:35,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 07:34:35,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:35,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 07:34:35,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:34:35,687 INFO L87 Difference]: Start difference. First operand has 144 states, 121 states have (on average 1.4297520661157024) internal successors, (173), 123 states have internal predecessors, (173), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:35,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:35,733 INFO L93 Difference]: Finished difference Result 226 states and 309 transitions. [2024-11-16 07:34:35,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 07:34:35,735 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 76 [2024-11-16 07:34:35,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:35,747 INFO L225 Difference]: With dead ends: 226 [2024-11-16 07:34:35,747 INFO L226 Difference]: Without dead ends: 136 [2024-11-16 07:34:35,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:34:35,757 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:35,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:34:35,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-16 07:34:35,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2024-11-16 07:34:35,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 114 states have (on average 1.412280701754386) internal successors, (161), 115 states have internal predecessors, (161), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-16 07:34:35,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 188 transitions. [2024-11-16 07:34:35,802 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 188 transitions. Word has length 76 [2024-11-16 07:34:35,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:35,804 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 188 transitions. [2024-11-16 07:34:35,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:35,805 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 188 transitions. [2024-11-16 07:34:35,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 07:34:35,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:35,808 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-16 07:34:35,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 07:34:36,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-16 07:34:36,009 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:36,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:36,010 INFO L85 PathProgramCache]: Analyzing trace with hash 877321722, now seen corresponding path program 1 times [2024-11-16 07:34:36,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:36,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248670892] [2024-11-16 07:34:36,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:36,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:36,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:36,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:36,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:34:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:36,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:34:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:36,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:34:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:36,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 07:34:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:36,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 07:34:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:36,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:34:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:36,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 07:34:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:36,295 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-16 07:34:36,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:36,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248670892] [2024-11-16 07:34:36,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248670892] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:34:36,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319680323] [2024-11-16 07:34:36,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:36,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:34:36,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:34:36,299 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:34:36,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 07:34:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:36,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 07:34:36,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:34:36,586 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 07:34:36,586 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:34:36,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319680323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:36,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:34:36,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-16 07:34:36,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660466811] [2024-11-16 07:34:36,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:36,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 07:34:36,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:36,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 07:34:36,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:34:36,589 INFO L87 Difference]: Start difference. First operand 136 states and 188 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:36,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:36,624 INFO L93 Difference]: Finished difference Result 216 states and 290 transitions. [2024-11-16 07:34:36,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 07:34:36,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 79 [2024-11-16 07:34:36,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:36,627 INFO L225 Difference]: With dead ends: 216 [2024-11-16 07:34:36,627 INFO L226 Difference]: Without dead ends: 140 [2024-11-16 07:34:36,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:34:36,629 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 0 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:36,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 372 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:34:36,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-11-16 07:34:36,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2024-11-16 07:34:36,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 118 states have (on average 1.3983050847457628) internal successors, (165), 119 states have internal predecessors, (165), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-16 07:34:36,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 192 transitions. [2024-11-16 07:34:36,642 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 192 transitions. Word has length 79 [2024-11-16 07:34:36,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:36,643 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 192 transitions. [2024-11-16 07:34:36,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:36,643 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 192 transitions. [2024-11-16 07:34:36,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 07:34:36,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:36,660 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-16 07:34:36,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 07:34:36,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-16 07:34:36,865 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:36,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:36,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1945058859, now seen corresponding path program 1 times [2024-11-16 07:34:36,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:36,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295108000] [2024-11-16 07:34:36,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:36,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:34:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 07:34:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-16 07:34:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 07:34:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:34:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 07:34:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 07:34:37,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,072 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 07:34:37,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:37,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295108000] [2024-11-16 07:34:37,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295108000] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:34:37,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649470537] [2024-11-16 07:34:37,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:37,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:34:37,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:34:37,075 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:34:37,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 07:34:37,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 07:34:37,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:34:37,369 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 07:34:37,369 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:34:37,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649470537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:37,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:34:37,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-16 07:34:37,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388453542] [2024-11-16 07:34:37,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:37,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:34:37,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:37,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:34:37,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-16 07:34:37,372 INFO L87 Difference]: Start difference. First operand 140 states and 192 transitions. Second operand has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 07:34:37,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:37,421 INFO L93 Difference]: Finished difference Result 273 states and 377 transitions. [2024-11-16 07:34:37,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:34:37,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 85 [2024-11-16 07:34:37,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:37,425 INFO L225 Difference]: With dead ends: 273 [2024-11-16 07:34:37,425 INFO L226 Difference]: Without dead ends: 142 [2024-11-16 07:34:37,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-16 07:34:37,427 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 2 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:37,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 709 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:34:37,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-16 07:34:37,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-16 07:34:37,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 119 states have (on average 1.3949579831932772) internal successors, (166), 121 states have internal predecessors, (166), 14 states have call successors, (14), 7 states have call predecessors, (14), 8 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2024-11-16 07:34:37,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 195 transitions. [2024-11-16 07:34:37,440 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 195 transitions. Word has length 85 [2024-11-16 07:34:37,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:37,440 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 195 transitions. [2024-11-16 07:34:37,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 07:34:37,440 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 195 transitions. [2024-11-16 07:34:37,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-16 07:34:37,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:37,442 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1] [2024-11-16 07:34:37,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 07:34:37,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:34:37,643 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:37,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:37,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1389252852, now seen corresponding path program 1 times [2024-11-16 07:34:37,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:37,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288205459] [2024-11-16 07:34:37,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:37,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:34:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 07:34:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 07:34:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 07:34:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:34:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 07:34:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 07:34:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:37,865 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 07:34:37,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:37,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288205459] [2024-11-16 07:34:37,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288205459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:37,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:34:37,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 07:34:37,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717173722] [2024-11-16 07:34:37,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:37,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 07:34:37,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:37,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 07:34:37,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:34:37,868 INFO L87 Difference]: Start difference. First operand 142 states and 195 transitions. Second operand has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 07:34:38,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:38,803 INFO L93 Difference]: Finished difference Result 373 states and 519 transitions. [2024-11-16 07:34:38,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 07:34:38,804 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 86 [2024-11-16 07:34:38,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:38,807 INFO L225 Difference]: With dead ends: 373 [2024-11-16 07:34:38,811 INFO L226 Difference]: Without dead ends: 250 [2024-11-16 07:34:38,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:34:38,813 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 241 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:38,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 599 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 07:34:38,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-16 07:34:38,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 142. [2024-11-16 07:34:38,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 119 states have (on average 1.3949579831932772) internal successors, (166), 121 states have internal predecessors, (166), 14 states have call successors, (14), 7 states have call predecessors, (14), 8 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-16 07:34:38,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 194 transitions. [2024-11-16 07:34:38,836 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 194 transitions. Word has length 86 [2024-11-16 07:34:38,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:38,837 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 194 transitions. [2024-11-16 07:34:38,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 07:34:38,837 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 194 transitions. [2024-11-16 07:34:38,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-16 07:34:38,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:38,839 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 07:34:38,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 07:34:38,839 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:38,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:38,840 INFO L85 PathProgramCache]: Analyzing trace with hash -685645961, now seen corresponding path program 2 times [2024-11-16 07:34:38,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:38,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467903475] [2024-11-16 07:34:38,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:38,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:38,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:38,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:38,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:34:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:38,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:34:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:39,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:34:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:39,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 07:34:39,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:39,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 07:34:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:39,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 07:34:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:39,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 07:34:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:39,015 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 07:34:39,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:39,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467903475] [2024-11-16 07:34:39,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467903475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:39,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:34:39,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 07:34:39,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566913457] [2024-11-16 07:34:39,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:39,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 07:34:39,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:39,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 07:34:39,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:34:39,018 INFO L87 Difference]: Start difference. First operand 142 states and 194 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 07:34:39,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:39,885 INFO L93 Difference]: Finished difference Result 375 states and 522 transitions. [2024-11-16 07:34:39,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 07:34:39,886 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 87 [2024-11-16 07:34:39,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:39,889 INFO L225 Difference]: With dead ends: 375 [2024-11-16 07:34:39,889 INFO L226 Difference]: Without dead ends: 252 [2024-11-16 07:34:39,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:34:39,891 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 238 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:39,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 598 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 07:34:39,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-11-16 07:34:39,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 144. [2024-11-16 07:34:39,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 120 states have (on average 1.3916666666666666) internal successors, (167), 123 states have internal predecessors, (167), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-16 07:34:39,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 197 transitions. [2024-11-16 07:34:39,911 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 197 transitions. Word has length 87 [2024-11-16 07:34:39,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:39,912 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 197 transitions. [2024-11-16 07:34:39,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 07:34:39,912 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 197 transitions. [2024-11-16 07:34:39,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-16 07:34:39,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:39,914 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1] [2024-11-16 07:34:39,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 07:34:39,914 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:39,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:39,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1537212136, now seen corresponding path program 1 times [2024-11-16 07:34:39,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:39,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354816370] [2024-11-16 07:34:39,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:39,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:40,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:40,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:40,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:34:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:40,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 07:34:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:40,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 07:34:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:40,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 07:34:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:40,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 07:34:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:40,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 07:34:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:40,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-16 07:34:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:40,064 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 07:34:40,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:40,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354816370] [2024-11-16 07:34:40,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354816370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:40,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:34:40,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 07:34:40,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241598788] [2024-11-16 07:34:40,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:40,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 07:34:40,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:40,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 07:34:40,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:34:40,069 INFO L87 Difference]: Start difference. First operand 144 states and 197 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 07:34:40,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:40,904 INFO L93 Difference]: Finished difference Result 375 states and 521 transitions. [2024-11-16 07:34:40,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 07:34:40,904 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 88 [2024-11-16 07:34:40,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:40,906 INFO L225 Difference]: With dead ends: 375 [2024-11-16 07:34:40,907 INFO L226 Difference]: Without dead ends: 252 [2024-11-16 07:34:40,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-16 07:34:40,908 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 239 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:40,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 595 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 07:34:40,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-11-16 07:34:40,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 144. [2024-11-16 07:34:40,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 120 states have (on average 1.3916666666666666) internal successors, (167), 123 states have internal predecessors, (167), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-16 07:34:40,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 197 transitions. [2024-11-16 07:34:40,939 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 197 transitions. Word has length 88 [2024-11-16 07:34:40,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:40,940 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 197 transitions. [2024-11-16 07:34:40,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 07:34:40,940 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 197 transitions. [2024-11-16 07:34:40,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-16 07:34:40,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:40,942 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1] [2024-11-16 07:34:40,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 07:34:40,943 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:40,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:40,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1453361431, now seen corresponding path program 1 times [2024-11-16 07:34:40,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:40,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480946006] [2024-11-16 07:34:40,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:40,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:41,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:41,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:41,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:34:41,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:41,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 07:34:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:41,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-16 07:34:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:41,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 07:34:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:41,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 07:34:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:41,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 07:34:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:41,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-16 07:34:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:41,064 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 07:34:41,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:41,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480946006] [2024-11-16 07:34:41,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480946006] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:34:41,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375374346] [2024-11-16 07:34:41,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:41,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:34:41,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:34:41,067 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:34:41,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 07:34:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:41,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 792 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:34:41,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:34:41,315 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 07:34:41,318 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 07:34:41,392 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 07:34:41,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375374346] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 07:34:41,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 07:34:41,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2024-11-16 07:34:41,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955927215] [2024-11-16 07:34:41,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 07:34:41,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 07:34:41,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:41,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 07:34:41,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:34:41,395 INFO L87 Difference]: Start difference. First operand 144 states and 197 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 07:34:42,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:42,071 INFO L93 Difference]: Finished difference Result 475 states and 684 transitions. [2024-11-16 07:34:42,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 07:34:42,076 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 88 [2024-11-16 07:34:42,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:42,078 INFO L225 Difference]: With dead ends: 475 [2024-11-16 07:34:42,078 INFO L226 Difference]: Without dead ends: 399 [2024-11-16 07:34:42,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:34:42,081 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 635 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:42,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 712 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 07:34:42,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-11-16 07:34:42,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 267. [2024-11-16 07:34:42,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 243 states have (on average 1.5020576131687242) internal successors, (365), 246 states have internal predecessors, (365), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-16 07:34:42,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 395 transitions. [2024-11-16 07:34:42,104 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 395 transitions. Word has length 88 [2024-11-16 07:34:42,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:42,105 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 395 transitions. [2024-11-16 07:34:42,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 07:34:42,105 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 395 transitions. [2024-11-16 07:34:42,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 07:34:42,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:42,107 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:34:42,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 07:34:42,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:34:42,311 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:42,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:42,312 INFO L85 PathProgramCache]: Analyzing trace with hash -141942433, now seen corresponding path program 1 times [2024-11-16 07:34:42,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:42,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817118136] [2024-11-16 07:34:42,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:42,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:42,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:42,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:42,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:34:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:42,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 07:34:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:42,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:34:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:42,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 07:34:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:42,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 07:34:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:42,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 07:34:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:42,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 07:34:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:42,409 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 07:34:42,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:42,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817118136] [2024-11-16 07:34:42,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817118136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:42,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:34:42,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:34:42,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844755793] [2024-11-16 07:34:42,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:42,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:34:42,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:42,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:34:42,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:34:42,412 INFO L87 Difference]: Start difference. First operand 267 states and 395 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:43,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:43,023 INFO L93 Difference]: Finished difference Result 745 states and 1115 transitions. [2024-11-16 07:34:43,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 07:34:43,024 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2024-11-16 07:34:43,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:43,027 INFO L225 Difference]: With dead ends: 745 [2024-11-16 07:34:43,027 INFO L226 Difference]: Without dead ends: 507 [2024-11-16 07:34:43,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:34:43,028 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 306 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:43,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 425 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 07:34:43,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-11-16 07:34:43,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 391. [2024-11-16 07:34:43,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 367 states have (on average 1.5204359673024523) internal successors, (558), 370 states have internal predecessors, (558), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-16 07:34:43,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 588 transitions. [2024-11-16 07:34:43,059 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 588 transitions. Word has length 103 [2024-11-16 07:34:43,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:43,059 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 588 transitions. [2024-11-16 07:34:43,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:43,059 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 588 transitions. [2024-11-16 07:34:43,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 07:34:43,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:43,061 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:34:43,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 07:34:43,062 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:43,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:43,062 INFO L85 PathProgramCache]: Analyzing trace with hash -733821454, now seen corresponding path program 1 times [2024-11-16 07:34:43,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:43,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533882261] [2024-11-16 07:34:43,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:43,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:43,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:34:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 07:34:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 07:34:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 07:34:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 07:34:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 07:34:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 07:34:43,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,175 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 07:34:43,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:43,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533882261] [2024-11-16 07:34:43,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533882261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:43,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:34:43,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:34:43,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021214511] [2024-11-16 07:34:43,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:43,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:34:43,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:43,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:34:43,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:34:43,179 INFO L87 Difference]: Start difference. First operand 391 states and 588 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:43,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:43,773 INFO L93 Difference]: Finished difference Result 1064 states and 1612 transitions. [2024-11-16 07:34:43,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 07:34:43,774 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 104 [2024-11-16 07:34:43,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:43,778 INFO L225 Difference]: With dead ends: 1064 [2024-11-16 07:34:43,778 INFO L226 Difference]: Without dead ends: 713 [2024-11-16 07:34:43,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:34:43,780 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 301 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:43,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 422 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 07:34:43,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-16 07:34:43,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 597. [2024-11-16 07:34:43,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 573 states have (on average 1.5253054101221641) internal successors, (874), 576 states have internal predecessors, (874), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-16 07:34:43,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 904 transitions. [2024-11-16 07:34:43,805 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 904 transitions. Word has length 104 [2024-11-16 07:34:43,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:43,805 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 904 transitions. [2024-11-16 07:34:43,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:43,806 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 904 transitions. [2024-11-16 07:34:43,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-16 07:34:43,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:43,808 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:34:43,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 07:34:43,808 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:43,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:43,808 INFO L85 PathProgramCache]: Analyzing trace with hash 215622751, now seen corresponding path program 1 times [2024-11-16 07:34:43,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:43,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547096315] [2024-11-16 07:34:43,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:43,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:34:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-16 07:34:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 07:34:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 07:34:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-16 07:34:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-16 07:34:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-16 07:34:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:43,897 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 07:34:43,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:43,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547096315] [2024-11-16 07:34:43,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547096315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:43,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:34:43,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:34:43,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334809283] [2024-11-16 07:34:43,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:43,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:34:43,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:43,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:34:43,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:34:43,899 INFO L87 Difference]: Start difference. First operand 597 states and 904 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:44,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:44,471 INFO L93 Difference]: Finished difference Result 1573 states and 2394 transitions. [2024-11-16 07:34:44,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 07:34:44,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 105 [2024-11-16 07:34:44,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:44,477 INFO L225 Difference]: With dead ends: 1573 [2024-11-16 07:34:44,477 INFO L226 Difference]: Without dead ends: 1043 [2024-11-16 07:34:44,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:34:44,479 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 300 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:44,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 421 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 07:34:44,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2024-11-16 07:34:44,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 927. [2024-11-16 07:34:44,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 903 states have (on average 1.5193798449612403) internal successors, (1372), 906 states have internal predecessors, (1372), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-16 07:34:44,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1402 transitions. [2024-11-16 07:34:44,506 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1402 transitions. Word has length 105 [2024-11-16 07:34:44,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:44,506 INFO L471 AbstractCegarLoop]: Abstraction has 927 states and 1402 transitions. [2024-11-16 07:34:44,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:44,507 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1402 transitions. [2024-11-16 07:34:44,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 07:34:44,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:44,509 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 3, 3, 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] [2024-11-16 07:34:44,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 07:34:44,509 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:44,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:44,510 INFO L85 PathProgramCache]: Analyzing trace with hash -412940632, now seen corresponding path program 2 times [2024-11-16 07:34:44,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:44,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134918998] [2024-11-16 07:34:44,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:44,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:44,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:44,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:44,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:34:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:44,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 07:34:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:44,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 07:34:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:44,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 07:34:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:44,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 07:34:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:44,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 07:34:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:44,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-16 07:34:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:44,670 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-16 07:34:44,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:44,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134918998] [2024-11-16 07:34:44,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134918998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:44,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:34:44,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 07:34:44,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654756395] [2024-11-16 07:34:44,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:44,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 07:34:44,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:44,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 07:34:44,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:34:44,673 INFO L87 Difference]: Start difference. First operand 927 states and 1402 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:45,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:45,452 INFO L93 Difference]: Finished difference Result 1660 states and 2499 transitions. [2024-11-16 07:34:45,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 07:34:45,453 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 106 [2024-11-16 07:34:45,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:45,458 INFO L225 Difference]: With dead ends: 1660 [2024-11-16 07:34:45,458 INFO L226 Difference]: Without dead ends: 1043 [2024-11-16 07:34:45,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:34:45,460 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 304 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:45,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 999 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 07:34:45,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2024-11-16 07:34:45,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 927. [2024-11-16 07:34:45,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 903 states have (on average 1.5105204872646734) internal successors, (1364), 906 states have internal predecessors, (1364), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-16 07:34:45,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1394 transitions. [2024-11-16 07:34:45,487 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1394 transitions. Word has length 106 [2024-11-16 07:34:45,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:45,488 INFO L471 AbstractCegarLoop]: Abstraction has 927 states and 1394 transitions. [2024-11-16 07:34:45,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:45,489 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1394 transitions. [2024-11-16 07:34:45,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 07:34:45,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:45,492 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:34:45,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 07:34:45,492 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:45,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:45,492 INFO L85 PathProgramCache]: Analyzing trace with hash 616487986, now seen corresponding path program 1 times [2024-11-16 07:34:45,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:45,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959685102] [2024-11-16 07:34:45,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:45,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:45,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:45,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:45,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:34:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:45,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 07:34:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:45,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 07:34:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:45,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 07:34:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:45,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 07:34:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:45,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 07:34:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:45,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-16 07:34:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:45,599 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 07:34:45,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:45,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959685102] [2024-11-16 07:34:45,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959685102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:45,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:34:45,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:34:45,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288563569] [2024-11-16 07:34:45,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:45,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:34:45,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:45,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:34:45,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:34:45,602 INFO L87 Difference]: Start difference. First operand 927 states and 1394 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:46,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:46,200 INFO L93 Difference]: Finished difference Result 2380 states and 3601 transitions. [2024-11-16 07:34:46,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 07:34:46,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 106 [2024-11-16 07:34:46,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:46,208 INFO L225 Difference]: With dead ends: 2380 [2024-11-16 07:34:46,208 INFO L226 Difference]: Without dead ends: 1576 [2024-11-16 07:34:46,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:34:46,212 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 296 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:46,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 422 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 07:34:46,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2024-11-16 07:34:46,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1460. [2024-11-16 07:34:46,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1436 states have (on average 1.4993036211699164) internal successors, (2153), 1439 states have internal predecessors, (2153), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-16 07:34:46,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 2183 transitions. [2024-11-16 07:34:46,252 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 2183 transitions. Word has length 106 [2024-11-16 07:34:46,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:46,253 INFO L471 AbstractCegarLoop]: Abstraction has 1460 states and 2183 transitions. [2024-11-16 07:34:46,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:46,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 2183 transitions. [2024-11-16 07:34:46,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 07:34:46,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:46,257 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:34:46,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 07:34:46,257 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:46,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:46,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1338491041, now seen corresponding path program 1 times [2024-11-16 07:34:46,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:46,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951813395] [2024-11-16 07:34:46,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:46,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:46,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:46,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:46,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:34:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:46,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:34:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:46,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:34:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:46,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 07:34:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:46,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 07:34:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:46,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 07:34:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:46,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 07:34:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:46,369 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 07:34:46,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:46,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951813395] [2024-11-16 07:34:46,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951813395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:46,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:34:46,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:34:46,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552720843] [2024-11-16 07:34:46,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:46,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:34:46,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:46,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:34:46,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:34:46,372 INFO L87 Difference]: Start difference. First operand 1460 states and 2183 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:46,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:46,999 INFO L93 Difference]: Finished difference Result 3703 states and 5577 transitions. [2024-11-16 07:34:46,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 07:34:47,000 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 107 [2024-11-16 07:34:47,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:47,009 INFO L225 Difference]: With dead ends: 3703 [2024-11-16 07:34:47,009 INFO L226 Difference]: Without dead ends: 2464 [2024-11-16 07:34:47,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:34:47,012 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 293 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:47,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 421 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 07:34:47,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2464 states. [2024-11-16 07:34:47,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2464 to 2348. [2024-11-16 07:34:47,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2348 states, 2324 states have (on average 1.4866609294320137) internal successors, (3455), 2327 states have internal predecessors, (3455), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-16 07:34:47,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2348 states to 2348 states and 3485 transitions. [2024-11-16 07:34:47,072 INFO L78 Accepts]: Start accepts. Automaton has 2348 states and 3485 transitions. Word has length 107 [2024-11-16 07:34:47,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:47,073 INFO L471 AbstractCegarLoop]: Abstraction has 2348 states and 3485 transitions. [2024-11-16 07:34:47,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:47,073 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states and 3485 transitions. [2024-11-16 07:34:47,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 07:34:47,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:47,077 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:34:47,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 07:34:47,078 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:47,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:47,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1857340814, now seen corresponding path program 1 times [2024-11-16 07:34:47,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:47,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989511425] [2024-11-16 07:34:47,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:47,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:47,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:47,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:47,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:34:47,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:47,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:34:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:47,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 07:34:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:47,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 07:34:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:47,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 07:34:47,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:47,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 07:34:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:47,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 07:34:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:47,176 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 07:34:47,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:47,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989511425] [2024-11-16 07:34:47,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989511425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:47,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:34:47,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:34:47,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239686354] [2024-11-16 07:34:47,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:47,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:34:47,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:47,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:34:47,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:34:47,178 INFO L87 Difference]: Start difference. First operand 2348 states and 3485 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:47,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:47,832 INFO L93 Difference]: Finished difference Result 5702 states and 8503 transitions. [2024-11-16 07:34:47,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 07:34:47,833 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 108 [2024-11-16 07:34:47,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:47,847 INFO L225 Difference]: With dead ends: 5702 [2024-11-16 07:34:47,847 INFO L226 Difference]: Without dead ends: 3808 [2024-11-16 07:34:47,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:34:47,851 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 289 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:47,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 414 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 07:34:47,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3808 states. [2024-11-16 07:34:47,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3808 to 3692. [2024-11-16 07:34:47,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3692 states, 3668 states have (on average 1.467557251908397) internal successors, (5383), 3671 states have internal predecessors, (5383), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-16 07:34:47,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3692 states to 3692 states and 5413 transitions. [2024-11-16 07:34:47,940 INFO L78 Accepts]: Start accepts. Automaton has 3692 states and 5413 transitions. Word has length 108 [2024-11-16 07:34:47,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:47,940 INFO L471 AbstractCegarLoop]: Abstraction has 3692 states and 5413 transitions. [2024-11-16 07:34:47,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:47,941 INFO L276 IsEmpty]: Start isEmpty. Operand 3692 states and 5413 transitions. [2024-11-16 07:34:47,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-16 07:34:47,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:47,949 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:34:47,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 07:34:47,950 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:47,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:47,950 INFO L85 PathProgramCache]: Analyzing trace with hash 175838111, now seen corresponding path program 1 times [2024-11-16 07:34:47,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:47,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817229271] [2024-11-16 07:34:47,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:47,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:34:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 07:34:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 07:34:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 07:34:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 07:34:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 07:34:48,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 07:34:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,063 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 07:34:48,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:48,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817229271] [2024-11-16 07:34:48,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817229271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:48,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:34:48,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:34:48,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313470633] [2024-11-16 07:34:48,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:48,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:34:48,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:48,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:34:48,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:34:48,065 INFO L87 Difference]: Start difference. First operand 3692 states and 5413 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:48,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:48,698 INFO L93 Difference]: Finished difference Result 9430 states and 13925 transitions. [2024-11-16 07:34:48,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 07:34:48,699 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 109 [2024-11-16 07:34:48,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:48,721 INFO L225 Difference]: With dead ends: 9430 [2024-11-16 07:34:48,722 INFO L226 Difference]: Without dead ends: 6413 [2024-11-16 07:34:48,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:34:48,730 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 286 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:48,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 422 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 07:34:48,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6413 states. [2024-11-16 07:34:48,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6413 to 6297. [2024-11-16 07:34:48,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6297 states, 6273 states have (on average 1.4541686593336522) internal successors, (9122), 6276 states have internal predecessors, (9122), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-16 07:34:48,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6297 states to 6297 states and 9152 transitions. [2024-11-16 07:34:48,899 INFO L78 Accepts]: Start accepts. Automaton has 6297 states and 9152 transitions. Word has length 109 [2024-11-16 07:34:48,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:48,899 INFO L471 AbstractCegarLoop]: Abstraction has 6297 states and 9152 transitions. [2024-11-16 07:34:48,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:48,900 INFO L276 IsEmpty]: Start isEmpty. Operand 6297 states and 9152 transitions. [2024-11-16 07:34:48,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-16 07:34:48,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:48,909 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:34:48,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 07:34:48,910 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:48,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:48,910 INFO L85 PathProgramCache]: Analyzing trace with hash 674584754, now seen corresponding path program 1 times [2024-11-16 07:34:48,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:48,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645018459] [2024-11-16 07:34:48,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:48,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:34:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 07:34:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 07:34:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 07:34:48,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 07:34:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 07:34:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 07:34:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:48,996 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 07:34:48,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:48,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645018459] [2024-11-16 07:34:48,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645018459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:48,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:34:48,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:34:48,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67041323] [2024-11-16 07:34:48,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:48,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:34:48,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:48,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:34:48,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:34:48,998 INFO L87 Difference]: Start difference. First operand 6297 states and 9152 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:49,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:49,699 INFO L93 Difference]: Finished difference Result 16519 states and 24149 transitions. [2024-11-16 07:34:49,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 07:34:49,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 110 [2024-11-16 07:34:49,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:49,748 INFO L225 Difference]: With dead ends: 16519 [2024-11-16 07:34:49,752 INFO L226 Difference]: Without dead ends: 11229 [2024-11-16 07:34:49,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:34:49,765 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 284 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:49,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 422 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 07:34:49,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11229 states. [2024-11-16 07:34:49,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11229 to 11113. [2024-11-16 07:34:50,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11113 states, 11089 states have (on average 1.4400757507439805) internal successors, (15969), 11092 states have internal predecessors, (15969), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-16 07:34:50,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11113 states to 11113 states and 15999 transitions. [2024-11-16 07:34:50,043 INFO L78 Accepts]: Start accepts. Automaton has 11113 states and 15999 transitions. Word has length 110 [2024-11-16 07:34:50,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:50,043 INFO L471 AbstractCegarLoop]: Abstraction has 11113 states and 15999 transitions. [2024-11-16 07:34:50,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:50,044 INFO L276 IsEmpty]: Start isEmpty. Operand 11113 states and 15999 transitions. [2024-11-16 07:34:50,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 07:34:50,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:50,059 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:34:50,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 07:34:50,060 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:50,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:50,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1812301471, now seen corresponding path program 1 times [2024-11-16 07:34:50,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:50,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292615567] [2024-11-16 07:34:50,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:50,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:50,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:50,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:50,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:34:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:50,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 07:34:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:50,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 07:34:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:50,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-16 07:34:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:50,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:34:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:50,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-16 07:34:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:50,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 07:34:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:50,145 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 07:34:50,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:50,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292615567] [2024-11-16 07:34:50,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292615567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:50,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:34:50,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:34:50,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741491602] [2024-11-16 07:34:50,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:50,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:34:50,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:50,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:34:50,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:34:50,148 INFO L87 Difference]: Start difference. First operand 11113 states and 15999 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:50,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:50,827 INFO L93 Difference]: Finished difference Result 30015 states and 43377 transitions. [2024-11-16 07:34:50,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 07:34:50,828 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 111 [2024-11-16 07:34:50,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:50,877 INFO L225 Difference]: With dead ends: 30015 [2024-11-16 07:34:50,877 INFO L226 Difference]: Without dead ends: 20340 [2024-11-16 07:34:50,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:34:50,895 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 281 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:50,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 421 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 07:34:50,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20340 states. [2024-11-16 07:34:51,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20340 to 20224. [2024-11-16 07:34:51,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20224 states, 20200 states have (on average 1.4244059405940594) internal successors, (28773), 20203 states have internal predecessors, (28773), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-16 07:34:51,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20224 states to 20224 states and 28803 transitions. [2024-11-16 07:34:51,389 INFO L78 Accepts]: Start accepts. Automaton has 20224 states and 28803 transitions. Word has length 111 [2024-11-16 07:34:51,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:51,389 INFO L471 AbstractCegarLoop]: Abstraction has 20224 states and 28803 transitions. [2024-11-16 07:34:51,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:51,389 INFO L276 IsEmpty]: Start isEmpty. Operand 20224 states and 28803 transitions. [2024-11-16 07:34:51,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-16 07:34:51,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:51,408 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2024-11-16 07:34:51,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 07:34:51,409 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:51,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:51,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1116127269, now seen corresponding path program 1 times [2024-11-16 07:34:51,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:51,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352455778] [2024-11-16 07:34:51,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:51,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:51,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:51,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:51,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:34:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:51,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:34:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:51,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 07:34:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:51,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 07:34:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:51,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 07:34:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:51,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-16 07:34:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:51,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 07:34:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:51,567 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-16 07:34:51,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:51,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352455778] [2024-11-16 07:34:51,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352455778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:51,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:34:51,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 07:34:51,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302426732] [2024-11-16 07:34:51,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:51,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 07:34:51,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:51,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 07:34:51,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:34:51,570 INFO L87 Difference]: Start difference. First operand 20224 states and 28803 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:52,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:52,493 INFO L93 Difference]: Finished difference Result 38430 states and 54930 transitions. [2024-11-16 07:34:52,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 07:34:52,494 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 112 [2024-11-16 07:34:52,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:52,539 INFO L225 Difference]: With dead ends: 38430 [2024-11-16 07:34:52,539 INFO L226 Difference]: Without dead ends: 20340 [2024-11-16 07:34:52,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:34:52,563 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 303 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:52,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 997 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1132 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 07:34:52,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20340 states. [2024-11-16 07:34:52,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20340 to 20224. [2024-11-16 07:34:52,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20224 states, 20200 states have (on average 1.4112376237623763) internal successors, (28507), 20203 states have internal predecessors, (28507), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-16 07:34:52,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20224 states to 20224 states and 28537 transitions. [2024-11-16 07:34:52,995 INFO L78 Accepts]: Start accepts. Automaton has 20224 states and 28537 transitions. Word has length 112 [2024-11-16 07:34:52,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:52,995 INFO L471 AbstractCegarLoop]: Abstraction has 20224 states and 28537 transitions. [2024-11-16 07:34:52,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:52,996 INFO L276 IsEmpty]: Start isEmpty. Operand 20224 states and 28537 transitions. [2024-11-16 07:34:53,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-16 07:34:53,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:53,012 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:34:53,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 07:34:53,012 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:53,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:53,013 INFO L85 PathProgramCache]: Analyzing trace with hash 372358898, now seen corresponding path program 1 times [2024-11-16 07:34:53,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:53,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52554116] [2024-11-16 07:34:53,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:53,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:53,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:53,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:53,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:34:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:53,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:34:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:53,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 07:34:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:53,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 07:34:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:53,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 07:34:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:53,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-16 07:34:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:53,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 07:34:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:53,208 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 07:34:53,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:53,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52554116] [2024-11-16 07:34:53,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52554116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:53,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:34:53,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:34:53,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992215156] [2024-11-16 07:34:53,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:53,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:34:53,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:53,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:34:53,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:34:53,210 INFO L87 Difference]: Start difference. First operand 20224 states and 28537 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:54,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:54,069 INFO L93 Difference]: Finished difference Result 56089 states and 79231 transitions. [2024-11-16 07:34:54,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 07:34:54,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 112 [2024-11-16 07:34:54,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:54,168 INFO L225 Difference]: With dead ends: 56089 [2024-11-16 07:34:54,168 INFO L226 Difference]: Without dead ends: 37846 [2024-11-16 07:34:54,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:34:54,202 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 279 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:54,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 420 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 07:34:54,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37846 states. [2024-11-16 07:34:55,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37846 to 37730. [2024-11-16 07:34:55,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37730 states, 37706 states have (on average 1.3927756855672837) internal successors, (52516), 37709 states have internal predecessors, (52516), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-16 07:34:55,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37730 states to 37730 states and 52546 transitions. [2024-11-16 07:34:55,157 INFO L78 Accepts]: Start accepts. Automaton has 37730 states and 52546 transitions. Word has length 112 [2024-11-16 07:34:55,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:55,158 INFO L471 AbstractCegarLoop]: Abstraction has 37730 states and 52546 transitions. [2024-11-16 07:34:55,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:55,159 INFO L276 IsEmpty]: Start isEmpty. Operand 37730 states and 52546 transitions. [2024-11-16 07:34:55,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-16 07:34:55,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:55,183 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:34:55,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 07:34:55,183 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:55,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:55,184 INFO L85 PathProgramCache]: Analyzing trace with hash 588911007, now seen corresponding path program 1 times [2024-11-16 07:34:55,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:55,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282292106] [2024-11-16 07:34:55,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:55,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:55,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:55,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:55,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:34:55,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:55,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 07:34:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:55,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 07:34:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:55,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 07:34:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:55,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 07:34:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:55,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 07:34:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:55,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 07:34:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:55,274 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 07:34:55,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:55,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282292106] [2024-11-16 07:34:55,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282292106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:55,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:34:55,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 07:34:55,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497400244] [2024-11-16 07:34:55,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:55,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 07:34:55,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:55,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 07:34:55,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 07:34:55,276 INFO L87 Difference]: Start difference. First operand 37730 states and 52546 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:56,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:34:56,270 INFO L93 Difference]: Finished difference Result 71793 states and 99628 transitions. [2024-11-16 07:34:56,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 07:34:56,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 113 [2024-11-16 07:34:56,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:34:56,425 INFO L225 Difference]: With dead ends: 71793 [2024-11-16 07:34:56,425 INFO L226 Difference]: Without dead ends: 71717 [2024-11-16 07:34:56,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:34:56,438 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 273 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 07:34:56,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 452 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 07:34:56,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71717 states. [2024-11-16 07:34:57,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71717 to 71601. [2024-11-16 07:34:57,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71601 states, 71577 states have (on average 1.3725638123978372) internal successors, (98244), 71580 states have internal predecessors, (98244), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-16 07:34:57,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71601 states to 71601 states and 98274 transitions. [2024-11-16 07:34:57,778 INFO L78 Accepts]: Start accepts. Automaton has 71601 states and 98274 transitions. Word has length 113 [2024-11-16 07:34:57,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:34:57,779 INFO L471 AbstractCegarLoop]: Abstraction has 71601 states and 98274 transitions. [2024-11-16 07:34:57,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:34:57,779 INFO L276 IsEmpty]: Start isEmpty. Operand 71601 states and 98274 transitions. [2024-11-16 07:34:57,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-16 07:34:57,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:34:57,801 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:34:57,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 07:34:57,802 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:34:57,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:34:57,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1715311310, now seen corresponding path program 1 times [2024-11-16 07:34:57,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:34:57,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535389263] [2024-11-16 07:34:57,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:57,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:34:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:58,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:34:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:58,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:34:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:58,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:34:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:58,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 07:34:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:58,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 07:34:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:58,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 07:34:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:58,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 07:34:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:58,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 07:34:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:58,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 07:34:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:58,778 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 07:34:58,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:34:58,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535389263] [2024-11-16 07:34:58,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535389263] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:34:58,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482415078] [2024-11-16 07:34:58,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:34:58,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:34:58,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:34:58,781 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:34:58,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 07:34:59,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:34:59,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-16 07:34:59,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:34:59,360 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 07:34:59,361 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:34:59,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482415078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:34:59,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:34:59,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [18] total 28 [2024-11-16 07:34:59,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472930990] [2024-11-16 07:34:59,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:34:59,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 07:34:59,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:34:59,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 07:34:59,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2024-11-16 07:34:59,363 INFO L87 Difference]: Start difference. First operand 71601 states and 98274 transitions. Second operand has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-16 07:35:00,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:35:00,121 INFO L93 Difference]: Finished difference Result 71770 states and 98493 transitions. [2024-11-16 07:35:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 07:35:00,122 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) Word has length 114 [2024-11-16 07:35:00,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:35:00,255 INFO L225 Difference]: With dead ends: 71770 [2024-11-16 07:35:00,255 INFO L226 Difference]: Without dead ends: 71700 [2024-11-16 07:35:00,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=184, Invalid=1456, Unknown=0, NotChecked=0, Total=1640 [2024-11-16 07:35:00,283 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 294 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 07:35:00,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 1941 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 07:35:00,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71700 states. [2024-11-16 07:35:01,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71700 to 71681. [2024-11-16 07:35:01,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71681 states, 71641 states have (on average 1.372510154799626) internal successors, (98328), 71644 states have internal predecessors, (98328), 22 states have call successors, (22), 13 states have call predecessors, (22), 17 states have return successors, (28), 23 states have call predecessors, (28), 20 states have call successors, (28) [2024-11-16 07:35:01,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71681 states to 71681 states and 98378 transitions. [2024-11-16 07:35:01,736 INFO L78 Accepts]: Start accepts. Automaton has 71681 states and 98378 transitions. Word has length 114 [2024-11-16 07:35:01,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:35:01,736 INFO L471 AbstractCegarLoop]: Abstraction has 71681 states and 98378 transitions. [2024-11-16 07:35:01,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-16 07:35:01,737 INFO L276 IsEmpty]: Start isEmpty. Operand 71681 states and 98378 transitions. [2024-11-16 07:35:01,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 07:35:01,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:35:01,754 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:35:01,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 07:35:01,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:35:01,955 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:35:01,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:35:01,956 INFO L85 PathProgramCache]: Analyzing trace with hash -156932384, now seen corresponding path program 1 times [2024-11-16 07:35:01,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:35:01,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173564350] [2024-11-16 07:35:01,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:35:01,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:35:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:02,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:35:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:02,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:35:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:02,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:35:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:02,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 07:35:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:02,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 07:35:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:02,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 07:35:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:02,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 07:35:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:02,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 07:35:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:02,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 07:35:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:02,393 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 07:35:02,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:35:02,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173564350] [2024-11-16 07:35:02,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173564350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:35:02,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:35:02,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 07:35:02,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654507910] [2024-11-16 07:35:02,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:35:02,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 07:35:02,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:35:02,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 07:35:02,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:35:02,397 INFO L87 Difference]: Start difference. First operand 71681 states and 98378 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:35:04,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:35:04,503 INFO L93 Difference]: Finished difference Result 140663 states and 193351 transitions. [2024-11-16 07:35:04,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-16 07:35:04,504 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 115 [2024-11-16 07:35:04,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:35:04,751 INFO L225 Difference]: With dead ends: 140663 [2024-11-16 07:35:04,751 INFO L226 Difference]: Without dead ends: 140522 [2024-11-16 07:35:04,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2024-11-16 07:35:04,772 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 566 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 07:35:04,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 593 Invalid, 1259 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [134 Valid, 1125 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 07:35:04,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140522 states. [2024-11-16 07:35:07,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140522 to 140163. [2024-11-16 07:35:07,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140163 states, 140080 states have (on average 1.374328954882924) internal successors, (192516), 140087 states have internal predecessors, (192516), 47 states have call successors, (47), 24 states have call predecessors, (47), 35 states have return successors, (64), 51 states have call predecessors, (64), 43 states have call successors, (64) [2024-11-16 07:35:07,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140163 states to 140163 states and 192627 transitions. [2024-11-16 07:35:07,484 INFO L78 Accepts]: Start accepts. Automaton has 140163 states and 192627 transitions. Word has length 115 [2024-11-16 07:35:07,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:35:07,485 INFO L471 AbstractCegarLoop]: Abstraction has 140163 states and 192627 transitions. [2024-11-16 07:35:07,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:35:07,485 INFO L276 IsEmpty]: Start isEmpty. Operand 140163 states and 192627 transitions. [2024-11-16 07:35:07,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 07:35:07,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:35:07,505 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:35:07,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 07:35:07,505 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:35:07,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:35:07,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1141678870, now seen corresponding path program 1 times [2024-11-16 07:35:07,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:35:07,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697991096] [2024-11-16 07:35:07,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:35:07,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:35:07,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:08,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:35:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:08,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:35:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:08,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:35:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:08,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 07:35:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:08,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 07:35:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:08,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 07:35:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:08,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 07:35:08,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:08,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 07:35:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:08,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 07:35:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:08,240 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 07:35:08,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:35:08,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697991096] [2024-11-16 07:35:08,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697991096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:35:08,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:35:08,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 07:35:08,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514972127] [2024-11-16 07:35:08,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:35:08,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 07:35:08,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:35:08,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 07:35:08,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:35:08,241 INFO L87 Difference]: Start difference. First operand 140163 states and 192627 transitions. Second operand has 13 states, 11 states have (on average 7.636363636363637) internal successors, (84), 9 states have internal predecessors, (84), 6 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-16 07:35:10,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:35:10,703 INFO L93 Difference]: Finished difference Result 141341 states and 194307 transitions. [2024-11-16 07:35:10,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-16 07:35:10,704 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.636363636363637) internal successors, (84), 9 states have internal predecessors, (84), 6 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 115 [2024-11-16 07:35:10,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:35:10,926 INFO L225 Difference]: With dead ends: 141341 [2024-11-16 07:35:10,926 INFO L226 Difference]: Without dead ends: 140702 [2024-11-16 07:35:10,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=250, Invalid=1310, Unknown=0, NotChecked=0, Total=1560 [2024-11-16 07:35:10,943 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 444 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 2367 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 2473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 2367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:35:10,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 1046 Invalid, 2473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 2367 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 07:35:11,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140702 states. [2024-11-16 07:35:13,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140702 to 140245. [2024-11-16 07:35:13,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140245 states, 140144 states have (on average 1.3742721771891768) internal successors, (192596), 140152 states have internal predecessors, (192596), 63 states have call successors, (63), 28 states have call predecessors, (63), 37 states have return successors, (92), 64 states have call predecessors, (92), 59 states have call successors, (92) [2024-11-16 07:35:13,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140245 states to 140245 states and 192751 transitions. [2024-11-16 07:35:13,417 INFO L78 Accepts]: Start accepts. Automaton has 140245 states and 192751 transitions. Word has length 115 [2024-11-16 07:35:13,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:35:13,418 INFO L471 AbstractCegarLoop]: Abstraction has 140245 states and 192751 transitions. [2024-11-16 07:35:13,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.636363636363637) internal successors, (84), 9 states have internal predecessors, (84), 6 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-16 07:35:13,418 INFO L276 IsEmpty]: Start isEmpty. Operand 140245 states and 192751 transitions. [2024-11-16 07:35:13,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 07:35:13,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:35:13,442 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:35:13,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 07:35:13,443 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:35:13,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:35:13,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1983924073, now seen corresponding path program 1 times [2024-11-16 07:35:13,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:35:13,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498623874] [2024-11-16 07:35:13,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:35:13,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:35:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:14,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:35:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:14,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:35:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:14,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:35:14,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:14,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 07:35:14,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:14,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 07:35:14,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:14,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 07:35:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:14,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 07:35:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:14,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 07:35:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:14,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 07:35:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:14,370 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 07:35:14,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:35:14,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498623874] [2024-11-16 07:35:14,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498623874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:35:14,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348372132] [2024-11-16 07:35:14,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:35:14,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:35:14,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:35:14,373 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:35:14,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 07:35:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:14,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-16 07:35:14,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:35:14,855 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 07:35:14,855 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:35:14,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348372132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:35:14,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:35:14,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 25 [2024-11-16 07:35:14,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214810465] [2024-11-16 07:35:14,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:35:14,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 07:35:14,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:35:14,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 07:35:14,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2024-11-16 07:35:14,857 INFO L87 Difference]: Start difference. First operand 140245 states and 192751 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-16 07:35:16,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:35:16,266 INFO L93 Difference]: Finished difference Result 140761 states and 193421 transitions. [2024-11-16 07:35:16,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 07:35:16,267 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) Word has length 116 [2024-11-16 07:35:16,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:35:16,588 INFO L225 Difference]: With dead ends: 140761 [2024-11-16 07:35:16,588 INFO L226 Difference]: Without dead ends: 140398 [2024-11-16 07:35:16,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 07:35:16,633 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 384 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:35:16,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 1623 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 07:35:16,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140398 states. [2024-11-16 07:35:19,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140398 to 140316. [2024-11-16 07:35:19,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140316 states, 140201 states have (on average 1.3742056048102367) internal successors, (192665), 140206 states have internal predecessors, (192665), 69 states have call successors, (69), 38 states have call predecessors, (69), 45 states have return successors, (88), 71 states have call predecessors, (88), 63 states have call successors, (88) [2024-11-16 07:35:19,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140316 states to 140316 states and 192822 transitions. [2024-11-16 07:35:19,376 INFO L78 Accepts]: Start accepts. Automaton has 140316 states and 192822 transitions. Word has length 116 [2024-11-16 07:35:19,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:35:19,377 INFO L471 AbstractCegarLoop]: Abstraction has 140316 states and 192822 transitions. [2024-11-16 07:35:19,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-16 07:35:19,377 INFO L276 IsEmpty]: Start isEmpty. Operand 140316 states and 192822 transitions. [2024-11-16 07:35:19,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 07:35:19,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:35:19,399 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:35:19,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-16 07:35:19,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:35:19,600 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:35:19,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:35:19,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1974674068, now seen corresponding path program 1 times [2024-11-16 07:35:19,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:35:19,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236850226] [2024-11-16 07:35:19,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:35:19,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:35:19,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:19,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:35:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:19,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:35:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:19,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:35:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:19,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 07:35:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:19,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 07:35:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:19,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 07:35:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:19,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 07:35:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:19,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 07:35:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:19,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 07:35:19,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:19,731 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 07:35:19,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:35:19,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236850226] [2024-11-16 07:35:19,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236850226] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:35:19,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226131369] [2024-11-16 07:35:19,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:35:19,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:35:19,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:35:19,734 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:35:19,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 07:35:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:19,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 07:35:19,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:35:20,023 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 07:35:20,023 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:35:20,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226131369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:35:20,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:35:20,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-16 07:35:20,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595516373] [2024-11-16 07:35:20,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:35:20,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:35:20,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:35:20,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:35:20,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-16 07:35:20,025 INFO L87 Difference]: Start difference. First operand 140316 states and 192822 transitions. Second operand has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 07:35:21,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:35:21,429 INFO L93 Difference]: Finished difference Result 140662 states and 193271 transitions. [2024-11-16 07:35:21,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:35:21,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 115 [2024-11-16 07:35:21,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:35:21,691 INFO L225 Difference]: With dead ends: 140662 [2024-11-16 07:35:21,691 INFO L226 Difference]: Without dead ends: 140328 [2024-11-16 07:35:21,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-16 07:35:21,739 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:35:21,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 721 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:35:22,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140328 states. [2024-11-16 07:35:23,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140328 to 140320. [2024-11-16 07:35:24,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140320 states, 140203 states have (on average 1.3742002667560609) internal successors, (192667), 140210 states have internal predecessors, (192667), 69 states have call successors, (69), 38 states have call predecessors, (69), 47 states have return successors, (92), 71 states have call predecessors, (92), 63 states have call successors, (92) [2024-11-16 07:35:24,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140320 states to 140320 states and 192828 transitions. [2024-11-16 07:35:24,234 INFO L78 Accepts]: Start accepts. Automaton has 140320 states and 192828 transitions. Word has length 115 [2024-11-16 07:35:24,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:35:24,235 INFO L471 AbstractCegarLoop]: Abstraction has 140320 states and 192828 transitions. [2024-11-16 07:35:24,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-16 07:35:24,235 INFO L276 IsEmpty]: Start isEmpty. Operand 140320 states and 192828 transitions. [2024-11-16 07:35:24,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 07:35:24,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:35:24,259 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:35:24,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-16 07:35:24,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:35:24,460 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:35:24,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:35:24,460 INFO L85 PathProgramCache]: Analyzing trace with hash -513094069, now seen corresponding path program 1 times [2024-11-16 07:35:24,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:35:24,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797723126] [2024-11-16 07:35:24,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:35:24,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:35:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:24,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:35:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:24,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:35:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:24,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:35:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:24,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 07:35:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:24,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 07:35:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:24,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 07:35:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:24,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 07:35:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:24,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 07:35:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:24,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 07:35:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:24,583 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 07:35:24,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:35:24,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797723126] [2024-11-16 07:35:24,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797723126] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:35:24,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86776970] [2024-11-16 07:35:24,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:35:24,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:35:24,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:35:24,586 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:35:24,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-16 07:35:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:24,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 07:35:24,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:35:24,982 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-16 07:35:24,982 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:35:24,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86776970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:35:24,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:35:24,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 14 [2024-11-16 07:35:24,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065309374] [2024-11-16 07:35:24,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:35:24,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 07:35:24,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:35:24,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 07:35:24,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:35:24,984 INFO L87 Difference]: Start difference. First operand 140320 states and 192828 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:35:27,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:35:27,042 INFO L93 Difference]: Finished difference Result 140530 states and 193077 transitions. [2024-11-16 07:35:27,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:35:27,043 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 115 [2024-11-16 07:35:27,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:35:27,261 INFO L225 Difference]: With dead ends: 140530 [2024-11-16 07:35:27,261 INFO L226 Difference]: Without dead ends: 140219 [2024-11-16 07:35:27,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2024-11-16 07:35:27,290 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 172 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 07:35:27,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1157 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 07:35:27,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140219 states. [2024-11-16 07:35:29,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140219 to 140192. [2024-11-16 07:35:29,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140192 states, 140101 states have (on average 1.3742442951870437) internal successors, (192533), 140110 states have internal predecessors, (192533), 51 states have call successors, (51), 31 states have call predecessors, (51), 39 states have return successors, (63), 50 states have call predecessors, (63), 46 states have call successors, (63) [2024-11-16 07:35:29,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140192 states to 140192 states and 192647 transitions. [2024-11-16 07:35:29,445 INFO L78 Accepts]: Start accepts. Automaton has 140192 states and 192647 transitions. Word has length 115 [2024-11-16 07:35:29,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:35:29,445 INFO L471 AbstractCegarLoop]: Abstraction has 140192 states and 192647 transitions. [2024-11-16 07:35:29,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 07:35:29,445 INFO L276 IsEmpty]: Start isEmpty. Operand 140192 states and 192647 transitions. [2024-11-16 07:35:29,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 07:35:29,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:35:29,484 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:35:29,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-16 07:35:29,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-16 07:35:29,685 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:35:29,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:35:29,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1356938664, now seen corresponding path program 1 times [2024-11-16 07:35:29,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:35:29,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991461432] [2024-11-16 07:35:29,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:35:29,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:35:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:29,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:35:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:29,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:35:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:29,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-16 07:35:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:29,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 07:35:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:29,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:35:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:29,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-16 07:35:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:29,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-16 07:35:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:29,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 07:35:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:29,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 07:35:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:35:29,838 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-16 07:35:29,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:35:29,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991461432] [2024-11-16 07:35:29,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991461432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:35:29,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:35:29,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 07:35:29,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095305470] [2024-11-16 07:35:29,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:35:29,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 07:35:29,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:35:29,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 07:35:29,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:35:29,840 INFO L87 Difference]: Start difference. First operand 140192 states and 192647 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 6 states have internal predecessors, (77), 1 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-16 07:35:32,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:35:32,387 INFO L93 Difference]: Finished difference Result 140463 states and 193024 transitions. [2024-11-16 07:35:32,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-16 07:35:32,387 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 6 states have internal predecessors, (77), 1 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 129 [2024-11-16 07:35:32,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:35:32,394 INFO L225 Difference]: With dead ends: 140463 [2024-11-16 07:35:32,394 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 07:35:32,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2024-11-16 07:35:32,439 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 241 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 07:35:32,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 763 Invalid, 1488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 07:35:32,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 07:35:32,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 07:35:32,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 07:35:32,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 07:35:32,445 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 129 [2024-11-16 07:35:32,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:35:32,446 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 07:35:32,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 6 states have internal predecessors, (77), 1 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-16 07:35:32,446 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 07:35:32,446 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 07:35:32,450 INFO L782 garLoopResultBuilder]: Registering result SAFE for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 07:35:32,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 07:35:32,454 INFO L407 BasicCegarLoop]: Path program histogram: [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] [2024-11-16 07:35:32,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.