./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i -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 645cc8cd2ca5c3df18e88a30b2b1ec0d9c7b704a87e37ccd990a4988acc7530a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 12:03:36,631 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 12:03:36,709 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 12:03:36,714 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 12:03:36,715 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 12:03:36,755 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 12:03:36,756 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 12:03:36,756 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 12:03:36,757 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 12:03:36,758 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 12:03:36,758 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 12:03:36,759 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 12:03:36,759 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 12:03:36,761 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 12:03:36,762 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 12:03:36,762 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 12:03:36,763 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 12:03:36,763 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 12:03:36,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 12:03:36,764 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 12:03:36,764 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 12:03:36,767 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 12:03:36,767 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 12:03:36,768 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 12:03:36,768 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 12:03:36,768 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 12:03:36,769 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 12:03:36,769 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 12:03:36,769 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 12:03:36,770 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 12:03:36,771 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 12:03:36,771 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 12:03:36,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:03:36,772 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 12:03:36,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 12:03:36,778 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 12:03:36,778 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 12:03:36,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 12:03:36,778 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 12:03:36,779 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 12:03:36,779 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 12:03:36,779 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 12:03:36,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 645cc8cd2ca5c3df18e88a30b2b1ec0d9c7b704a87e37ccd990a4988acc7530a [2024-10-24 12:03:37,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 12:03:37,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 12:03:37,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 12:03:37,060 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 12:03:37,061 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 12:03:37,062 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i [2024-10-24 12:03:38,605 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 12:03:38,853 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 12:03:38,858 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i [2024-10-24 12:03:38,875 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/109bdf54b/06353996a65d4e2e8024033bdc85aaeb/FLAGecdf65f16 [2024-10-24 12:03:39,198 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/109bdf54b/06353996a65d4e2e8024033bdc85aaeb [2024-10-24 12:03:39,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 12:03:39,204 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 12:03:39,207 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 12:03:39,208 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 12:03:39,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 12:03:39,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:03:39" (1/1) ... [2024-10-24 12:03:39,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1462ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:03:39, skipping insertion in model container [2024-10-24 12:03:39,215 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:03:39" (1/1) ... [2024-10-24 12:03:39,255 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 12:03:39,439 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i[917,930] [2024-10-24 12:03:39,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:03:39,552 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 12:03:39,567 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-84.i[917,930] [2024-10-24 12:03:39,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:03:39,648 INFO L204 MainTranslator]: Completed translation [2024-10-24 12:03:39,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:03:39 WrapperNode [2024-10-24 12:03:39,652 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 12:03:39,653 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 12:03:39,653 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 12:03:39,653 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 12:03:39,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:03:39" (1/1) ... [2024-10-24 12:03:39,677 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:03:39" (1/1) ... [2024-10-24 12:03:39,716 INFO L138 Inliner]: procedures = 29, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 437 [2024-10-24 12:03:39,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 12:03:39,718 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 12:03:39,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 12:03:39,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 12:03:39,729 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:03:39" (1/1) ... [2024-10-24 12:03:39,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:03:39" (1/1) ... [2024-10-24 12:03:39,742 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:03:39" (1/1) ... [2024-10-24 12:03:39,767 INFO L175 MemorySlicer]: Split 122 memory accesses to 2 slices as follows [2, 120]. 98 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 15]. The 17 writes are split as follows [0, 17]. [2024-10-24 12:03:39,768 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:03:39" (1/1) ... [2024-10-24 12:03:39,768 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:03:39" (1/1) ... [2024-10-24 12:03:39,785 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:03:39" (1/1) ... [2024-10-24 12:03:39,792 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:03:39" (1/1) ... [2024-10-24 12:03:39,798 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:03:39" (1/1) ... [2024-10-24 12:03:39,803 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:03:39" (1/1) ... [2024-10-24 12:03:39,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 12:03:39,815 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 12:03:39,816 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 12:03:39,816 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 12:03:39,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:03:39" (1/1) ... [2024-10-24 12:03:39,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:03:39,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:03:39,862 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) [2024-10-24 12:03:39,867 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 [2024-10-24 12:03:39,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 12:03:39,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-24 12:03:39,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-24 12:03:39,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 12:03:39,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 12:03:39,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-24 12:03:39,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-24 12:03:39,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 12:03:39,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 12:03:39,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-24 12:03:39,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-24 12:03:39,920 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 12:03:39,920 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 12:03:39,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 12:03:39,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 12:03:39,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 12:03:39,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 12:03:40,046 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 12:03:40,048 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 12:03:40,636 INFO L? ?]: Removed 98 outVars from TransFormulas that were not future-live. [2024-10-24 12:03:40,636 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 12:03:40,690 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 12:03:40,690 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 12:03:40,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:03:40 BoogieIcfgContainer [2024-10-24 12:03:40,691 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 12:03:40,693 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 12:03:40,693 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 12:03:40,697 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 12:03:40,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:03:39" (1/3) ... [2024-10-24 12:03:40,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328735cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:03:40, skipping insertion in model container [2024-10-24 12:03:40,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:03:39" (2/3) ... [2024-10-24 12:03:40,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328735cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:03:40, skipping insertion in model container [2024-10-24 12:03:40,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:03:40" (3/3) ... [2024-10-24 12:03:40,701 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-84.i [2024-10-24 12:03:40,718 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 12:03:40,719 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 12:03:40,810 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 12:03:40,820 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;@3b7e22ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 12:03:40,821 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 12:03:40,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 74 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 12:03:40,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 12:03:40,843 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:03:40,844 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:03:40,845 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:03:40,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:03:40,852 INFO L85 PathProgramCache]: Analyzing trace with hash -2037949046, now seen corresponding path program 1 times [2024-10-24 12:03:40,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:03:40,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057457736] [2024-10-24 12:03:40,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:03:40,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:03:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:03:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:03:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:03:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:03:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:03:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:03:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:03:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:03:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:03:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:03:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:03:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:03:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:03:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:03:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:03:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:03:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:03:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:03:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:03:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:03:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,370 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 12:03:41,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:03:41,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057457736] [2024-10-24 12:03:41,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057457736] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:03:41,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:03:41,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 12:03:41,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839873879] [2024-10-24 12:03:41,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:03:41,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 12:03:41,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:03:41,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 12:03:41,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 12:03:41,408 INFO L87 Difference]: Start difference. First operand has 96 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 74 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 12:03:41,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:03:41,467 INFO L93 Difference]: Finished difference Result 189 states and 300 transitions. [2024-10-24 12:03:41,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 12:03:41,471 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 145 [2024-10-24 12:03:41,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:03:41,480 INFO L225 Difference]: With dead ends: 189 [2024-10-24 12:03:41,480 INFO L226 Difference]: Without dead ends: 94 [2024-10-24 12:03:41,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 12:03:41,492 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 12:03:41,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 12:03:41,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-10-24 12:03:41,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-10-24 12:03:41,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.3333333333333333) internal successors, (96), 72 states have internal predecessors, (96), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 12:03:41,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 136 transitions. [2024-10-24 12:03:41,554 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 136 transitions. Word has length 145 [2024-10-24 12:03:41,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:03:41,556 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 136 transitions. [2024-10-24 12:03:41,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 12:03:41,557 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 136 transitions. [2024-10-24 12:03:41,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 12:03:41,561 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:03:41,562 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:03:41,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 12:03:41,562 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:03:41,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:03:41,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1859365614, now seen corresponding path program 1 times [2024-10-24 12:03:41,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:03:41,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525782975] [2024-10-24 12:03:41,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:03:41,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:03:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:03:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:03:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:03:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:03:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:03:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:41,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:03:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:03:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:03:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:03:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:03:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:03:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:03:42,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:03:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:03:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:03:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:03:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:03:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:03:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:03:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:03:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,098 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 12:03:42,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:03:42,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525782975] [2024-10-24 12:03:42,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525782975] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:03:42,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:03:42,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 12:03:42,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476034621] [2024-10-24 12:03:42,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:03:42,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 12:03:42,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:03:42,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 12:03:42,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 12:03:42,111 INFO L87 Difference]: Start difference. First operand 94 states and 136 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 12:03:42,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:03:42,239 INFO L93 Difference]: Finished difference Result 190 states and 275 transitions. [2024-10-24 12:03:42,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 12:03:42,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-10-24 12:03:42,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:03:42,242 INFO L225 Difference]: With dead ends: 190 [2024-10-24 12:03:42,243 INFO L226 Difference]: Without dead ends: 97 [2024-10-24 12:03:42,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 12:03:42,250 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 1 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 12:03:42,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 383 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 12:03:42,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-10-24 12:03:42,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2024-10-24 12:03:42,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 74 states have (on average 1.3243243243243243) internal successors, (98), 74 states have internal predecessors, (98), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 12:03:42,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 138 transitions. [2024-10-24 12:03:42,279 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 138 transitions. Word has length 145 [2024-10-24 12:03:42,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:03:42,280 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 138 transitions. [2024-10-24 12:03:42,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 12:03:42,281 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 138 transitions. [2024-10-24 12:03:42,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 12:03:42,285 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:03:42,285 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:03:42,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 12:03:42,285 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:03:42,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:03:42,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1859425196, now seen corresponding path program 1 times [2024-10-24 12:03:42,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:03:42,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066410439] [2024-10-24 12:03:42,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:03:42,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:03:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:03:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:03:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:03:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:03:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:03:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:03:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:03:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:03:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:03:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:03:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:03:42,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:03:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:03:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:03:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:03:42,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:03:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:03:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:03:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:03:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:03:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:42,805 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 12:03:42,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:03:42,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066410439] [2024-10-24 12:03:42,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066410439] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:03:42,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:03:42,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 12:03:42,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327251641] [2024-10-24 12:03:42,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:03:42,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 12:03:42,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:03:42,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 12:03:42,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:03:42,812 INFO L87 Difference]: Start difference. First operand 96 states and 138 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 12:03:43,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:03:43,210 INFO L93 Difference]: Finished difference Result 281 states and 404 transitions. [2024-10-24 12:03:43,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 12:03:43,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-10-24 12:03:43,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:03:43,215 INFO L225 Difference]: With dead ends: 281 [2024-10-24 12:03:43,218 INFO L226 Difference]: Without dead ends: 186 [2024-10-24 12:03:43,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 12:03:43,220 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 101 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 12:03:43,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 351 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 12:03:43,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-10-24 12:03:43,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 162. [2024-10-24 12:03:43,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 119 states have (on average 1.2857142857142858) internal successors, (153), 119 states have internal predecessors, (153), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-24 12:03:43,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 233 transitions. [2024-10-24 12:03:43,255 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 233 transitions. Word has length 145 [2024-10-24 12:03:43,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:03:43,256 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 233 transitions. [2024-10-24 12:03:43,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 12:03:43,256 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 233 transitions. [2024-10-24 12:03:43,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-24 12:03:43,258 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:03:43,259 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:03:43,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 12:03:43,259 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:03:43,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:03:43,260 INFO L85 PathProgramCache]: Analyzing trace with hash 2085711054, now seen corresponding path program 1 times [2024-10-24 12:03:43,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:03:43,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697750019] [2024-10-24 12:03:43,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:03:43,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:03:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:49,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:03:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:49,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:03:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:49,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:03:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:49,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:03:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:49,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:03:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:49,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:03:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:50,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:03:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:50,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:03:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:50,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:03:50,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:50,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:03:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:50,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:03:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:50,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:03:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:50,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:03:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:50,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:03:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:50,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:03:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:50,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:03:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:50,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:03:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:50,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:03:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:50,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:03:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:50,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:03:50,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:50,270 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 12:03:50,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:03:50,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697750019] [2024-10-24 12:03:50,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697750019] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:03:50,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:03:50,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 12:03:50,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543314131] [2024-10-24 12:03:50,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:03:50,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 12:03:50,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:03:50,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 12:03:50,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-10-24 12:03:50,276 INFO L87 Difference]: Start difference. First operand 162 states and 233 transitions. Second operand has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 12:03:53,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:03:53,205 INFO L93 Difference]: Finished difference Result 384 states and 546 transitions. [2024-10-24 12:03:53,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 12:03:53,206 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 153 [2024-10-24 12:03:53,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:03:53,213 INFO L225 Difference]: With dead ends: 384 [2024-10-24 12:03:53,213 INFO L226 Difference]: Without dead ends: 289 [2024-10-24 12:03:53,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=178, Invalid=752, Unknown=0, NotChecked=0, Total=930 [2024-10-24 12:03:53,215 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 489 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 12:03:53,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 919 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1482 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 12:03:53,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-10-24 12:03:53,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 186. [2024-10-24 12:03:53,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 143 states have (on average 1.3006993006993006) internal successors, (186), 143 states have internal predecessors, (186), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-24 12:03:53,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 266 transitions. [2024-10-24 12:03:53,276 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 266 transitions. Word has length 153 [2024-10-24 12:03:53,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:03:53,280 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 266 transitions. [2024-10-24 12:03:53,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 12:03:53,280 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 266 transitions. [2024-10-24 12:03:53,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-24 12:03:53,282 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:03:53,282 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:03:53,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 12:03:53,283 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:03:53,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:03:53,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1268062604, now seen corresponding path program 1 times [2024-10-24 12:03:53,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:03:53,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470581289] [2024-10-24 12:03:53,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:03:53,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:03:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:57,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:03:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:57,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:03:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:57,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:03:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:57,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:03:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:58,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:03:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:58,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:03:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:58,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:03:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:58,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:03:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:58,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:03:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:58,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:03:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:58,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:03:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:58,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:03:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:58,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:03:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:58,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:03:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:58,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:03:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:58,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:03:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:58,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:03:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:58,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:03:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:58,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:03:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:58,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:03:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:03:58,265 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 12:03:58,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:03:58,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470581289] [2024-10-24 12:03:58,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470581289] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:03:58,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:03:58,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-24 12:03:58,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580515549] [2024-10-24 12:03:58,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:03:58,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 12:03:58,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:03:58,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 12:03:58,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-10-24 12:03:58,271 INFO L87 Difference]: Start difference. First operand 186 states and 266 transitions. Second operand has 18 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 18 states have internal predecessors, (56), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 12:04:00,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:04:00,153 INFO L93 Difference]: Finished difference Result 339 states and 484 transitions. [2024-10-24 12:04:00,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 12:04:00,154 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 18 states have internal predecessors, (56), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 153 [2024-10-24 12:04:00,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:04:00,158 INFO L225 Difference]: With dead ends: 339 [2024-10-24 12:04:00,158 INFO L226 Difference]: Without dead ends: 229 [2024-10-24 12:04:00,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2024-10-24 12:04:00,161 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 382 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 12:04:00,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 628 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 12:04:00,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-10-24 12:04:00,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 188. [2024-10-24 12:04:00,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 145 states have (on average 1.3103448275862069) internal successors, (190), 145 states have internal predecessors, (190), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-24 12:04:00,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 270 transitions. [2024-10-24 12:04:00,200 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 270 transitions. Word has length 153 [2024-10-24 12:04:00,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:04:00,201 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 270 transitions. [2024-10-24 12:04:00,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.2941176470588234) internal successors, (56), 18 states have internal predecessors, (56), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 12:04:00,201 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 270 transitions. [2024-10-24 12:04:00,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-24 12:04:00,203 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:04:00,203 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:04:00,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 12:04:00,204 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:04:00,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:04:00,204 INFO L85 PathProgramCache]: Analyzing trace with hash 2105566481, now seen corresponding path program 1 times [2024-10-24 12:04:00,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:04:00,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522775328] [2024-10-24 12:04:00,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:04:00,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:04:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:06,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:04:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:06,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:04:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:06,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:04:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:06,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:04:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:06,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:04:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:06,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:04:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:06,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:04:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:06,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:04:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:06,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:04:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:06,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:04:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:06,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:04:06,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:06,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:04:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:06,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:04:06,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:06,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:04:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:06,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:04:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:07,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:04:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:07,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:04:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:07,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:04:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:07,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:04:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:07,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:04:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:07,107 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 12:04:07,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:04:07,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522775328] [2024-10-24 12:04:07,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522775328] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:04:07,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:04:07,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-24 12:04:07,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935146765] [2024-10-24 12:04:07,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:04:07,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 12:04:07,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:04:07,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 12:04:07,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-10-24 12:04:07,111 INFO L87 Difference]: Start difference. First operand 188 states and 270 transitions. Second operand has 20 states, 19 states have (on average 3.0) internal successors, (57), 20 states have internal predecessors, (57), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 12:04:09,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:04:09,538 INFO L93 Difference]: Finished difference Result 336 states and 480 transitions. [2024-10-24 12:04:09,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 12:04:09,538 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.0) internal successors, (57), 20 states have internal predecessors, (57), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 154 [2024-10-24 12:04:09,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:04:09,542 INFO L225 Difference]: With dead ends: 336 [2024-10-24 12:04:09,543 INFO L226 Difference]: Without dead ends: 225 [2024-10-24 12:04:09,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2024-10-24 12:04:09,545 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 283 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 12:04:09,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 713 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 12:04:09,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-10-24 12:04:09,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 188. [2024-10-24 12:04:09,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 145 states have (on average 1.3103448275862069) internal successors, (190), 145 states have internal predecessors, (190), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-24 12:04:09,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 270 transitions. [2024-10-24 12:04:09,590 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 270 transitions. Word has length 154 [2024-10-24 12:04:09,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:04:09,591 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 270 transitions. [2024-10-24 12:04:09,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.0) internal successors, (57), 20 states have internal predecessors, (57), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 12:04:09,592 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 270 transitions. [2024-10-24 12:04:09,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 12:04:09,593 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:04:09,593 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:04:09,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 12:04:09,594 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:04:09,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:04:09,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1718729431, now seen corresponding path program 1 times [2024-10-24 12:04:09,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:04:09,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98896946] [2024-10-24 12:04:09,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:04:09,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:04:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:04:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:04:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:04:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:04:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:04:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:04:11,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:04:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:04:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:04:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:04:11,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:04:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:04:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:04:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:04:11,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:04:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:04:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:04:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:04:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:04:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:04:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:11,603 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 12:04:11,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:04:11,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98896946] [2024-10-24 12:04:11,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98896946] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:04:11,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:04:11,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 12:04:11,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875180062] [2024-10-24 12:04:11,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:04:11,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 12:04:11,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:04:11,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 12:04:11,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-10-24 12:04:11,607 INFO L87 Difference]: Start difference. First operand 188 states and 270 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 12:04:12,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:04:12,726 INFO L93 Difference]: Finished difference Result 359 states and 515 transitions. [2024-10-24 12:04:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 12:04:12,727 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2024-10-24 12:04:12,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:04:12,729 INFO L225 Difference]: With dead ends: 359 [2024-10-24 12:04:12,729 INFO L226 Difference]: Without dead ends: 248 [2024-10-24 12:04:12,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2024-10-24 12:04:12,731 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 224 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 12:04:12,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 405 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 12:04:12,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-10-24 12:04:12,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 219. [2024-10-24 12:04:12,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 176 states have (on average 1.3352272727272727) internal successors, (235), 176 states have internal predecessors, (235), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-24 12:04:12,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 315 transitions. [2024-10-24 12:04:12,772 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 315 transitions. Word has length 155 [2024-10-24 12:04:12,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:04:12,773 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 315 transitions. [2024-10-24 12:04:12,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 12:04:12,773 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 315 transitions. [2024-10-24 12:04:12,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 12:04:12,775 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:04:12,775 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:04:12,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 12:04:12,776 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:04:12,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:04:12,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1296374187, now seen corresponding path program 1 times [2024-10-24 12:04:12,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:04:12,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553768429] [2024-10-24 12:04:12,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:04:12,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:04:12,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:04:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:04:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:04:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:04:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:04:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:04:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:04:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:04:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:04:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:04:14,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:04:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:04:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:04:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:04:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:04:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:04:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:04:14,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:04:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:04:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:04:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:14,903 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 12:04:14,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:04:14,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553768429] [2024-10-24 12:04:14,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553768429] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:04:14,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:04:14,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 12:04:14,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632218178] [2024-10-24 12:04:14,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:04:14,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 12:04:14,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:04:14,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 12:04:14,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-24 12:04:14,906 INFO L87 Difference]: Start difference. First operand 219 states and 315 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 12:04:15,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:04:15,848 INFO L93 Difference]: Finished difference Result 400 states and 573 transitions. [2024-10-24 12:04:15,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:04:15,849 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2024-10-24 12:04:15,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:04:15,851 INFO L225 Difference]: With dead ends: 400 [2024-10-24 12:04:15,851 INFO L226 Difference]: Without dead ends: 272 [2024-10-24 12:04:15,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-10-24 12:04:15,853 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 370 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 12:04:15,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 315 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 12:04:15,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-10-24 12:04:15,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 240. [2024-10-24 12:04:15,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 197 states have (on average 1.3401015228426396) internal successors, (264), 197 states have internal predecessors, (264), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-24 12:04:15,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 344 transitions. [2024-10-24 12:04:15,915 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 344 transitions. Word has length 155 [2024-10-24 12:04:15,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:04:15,917 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 344 transitions. [2024-10-24 12:04:15,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 12:04:15,917 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 344 transitions. [2024-10-24 12:04:15,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 12:04:15,919 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:04:15,919 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:04:15,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 12:04:15,919 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:04:15,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:04:15,920 INFO L85 PathProgramCache]: Analyzing trace with hash 742262773, now seen corresponding path program 1 times [2024-10-24 12:04:15,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:04:15,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961553326] [2024-10-24 12:04:15,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:04:15,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:04:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:04:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:04:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:04:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:04:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:04:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:04:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:04:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:04:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:04:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:04:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:04:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:04:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:04:16,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:04:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:04:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:04:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:04:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:04:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:04:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:04:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:16,101 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 12:04:16,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:04:16,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961553326] [2024-10-24 12:04:16,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961553326] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:04:16,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:04:16,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 12:04:16,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023792461] [2024-10-24 12:04:16,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:04:16,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 12:04:16,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:04:16,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 12:04:16,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:04:16,104 INFO L87 Difference]: Start difference. First operand 240 states and 344 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 12:04:16,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:04:16,174 INFO L93 Difference]: Finished difference Result 382 states and 548 transitions. [2024-10-24 12:04:16,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 12:04:16,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-10-24 12:04:16,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:04:16,176 INFO L225 Difference]: With dead ends: 382 [2024-10-24 12:04:16,177 INFO L226 Difference]: Without dead ends: 243 [2024-10-24 12:04:16,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:04:16,178 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 12:04:16,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 505 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 12:04:16,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-10-24 12:04:16,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2024-10-24 12:04:16,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 200 states have (on average 1.335) internal successors, (267), 200 states have internal predecessors, (267), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-24 12:04:16,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 347 transitions. [2024-10-24 12:04:16,222 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 347 transitions. Word has length 155 [2024-10-24 12:04:16,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:04:16,222 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 347 transitions. [2024-10-24 12:04:16,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 12:04:16,223 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 347 transitions. [2024-10-24 12:04:16,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 12:04:16,226 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:04:16,226 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:04:16,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 12:04:16,226 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:04:16,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:04:16,227 INFO L85 PathProgramCache]: Analyzing trace with hash 41198195, now seen corresponding path program 1 times [2024-10-24 12:04:16,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:04:16,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748683208] [2024-10-24 12:04:16,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:04:16,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:04:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:04:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:04:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:04:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:04:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:04:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:04:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:04:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:04:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:04:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:04:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:04:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:04:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:04:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:04:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:04:21,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:04:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:04:21,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:04:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:04:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:04:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:21,313 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 12:04:21,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:04:21,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748683208] [2024-10-24 12:04:21,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748683208] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:04:21,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:04:21,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-24 12:04:21,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543572261] [2024-10-24 12:04:21,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:04:21,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 12:04:21,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:04:21,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 12:04:21,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-10-24 12:04:21,319 INFO L87 Difference]: Start difference. First operand 243 states and 347 transitions. Second operand has 18 states, 16 states have (on average 3.625) internal successors, (58), 18 states have internal predecessors, (58), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-24 12:04:23,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:04:23,529 INFO L93 Difference]: Finished difference Result 489 states and 689 transitions. [2024-10-24 12:04:23,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 12:04:23,530 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.625) internal successors, (58), 18 states have internal predecessors, (58), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) Word has length 155 [2024-10-24 12:04:23,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:04:23,533 INFO L225 Difference]: With dead ends: 489 [2024-10-24 12:04:23,533 INFO L226 Difference]: Without dead ends: 347 [2024-10-24 12:04:23,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=196, Invalid=796, Unknown=0, NotChecked=0, Total=992 [2024-10-24 12:04:23,535 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 464 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 12:04:23,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 548 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 12:04:23,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-10-24 12:04:23,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 286. [2024-10-24 12:04:23,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 243 states have (on average 1.3497942386831276) internal successors, (328), 243 states have internal predecessors, (328), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-24 12:04:23,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 408 transitions. [2024-10-24 12:04:23,617 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 408 transitions. Word has length 155 [2024-10-24 12:04:23,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:04:23,617 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 408 transitions. [2024-10-24 12:04:23,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.625) internal successors, (58), 18 states have internal predecessors, (58), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 4 states have call successors, (20) [2024-10-24 12:04:23,618 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 408 transitions. [2024-10-24 12:04:23,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 12:04:23,620 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:04:23,620 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:04:23,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 12:04:23,621 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:04:23,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:04:23,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1944940215, now seen corresponding path program 1 times [2024-10-24 12:04:23,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:04:23,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709292920] [2024-10-24 12:04:23,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:04:23,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:04:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:25,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:04:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:25,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:04:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:25,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:04:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:25,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:04:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:26,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:04:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:26,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:04:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:26,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:04:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:26,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:04:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:26,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:04:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:26,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:04:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:26,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:04:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:26,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:04:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:26,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:04:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:26,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:04:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:26,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:04:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:26,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:04:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:26,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:04:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:26,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:04:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:26,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:04:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:26,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:04:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:26,186 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 12:04:26,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:04:26,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709292920] [2024-10-24 12:04:26,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709292920] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:04:26,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:04:26,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 12:04:26,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820530260] [2024-10-24 12:04:26,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:04:26,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 12:04:26,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:04:26,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 12:04:26,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-10-24 12:04:26,189 INFO L87 Difference]: Start difference. First operand 286 states and 408 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 12:04:27,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:04:27,489 INFO L93 Difference]: Finished difference Result 492 states and 698 transitions. [2024-10-24 12:04:27,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 12:04:27,490 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2024-10-24 12:04:27,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:04:27,494 INFO L225 Difference]: With dead ends: 492 [2024-10-24 12:04:27,494 INFO L226 Difference]: Without dead ends: 321 [2024-10-24 12:04:27,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2024-10-24 12:04:27,499 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 187 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 12:04:27,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 421 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 12:04:27,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-10-24 12:04:27,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 288. [2024-10-24 12:04:27,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 245 states have (on average 1.3428571428571427) internal successors, (329), 245 states have internal predecessors, (329), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-24 12:04:27,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 409 transitions. [2024-10-24 12:04:27,557 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 409 transitions. Word has length 155 [2024-10-24 12:04:27,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:04:27,558 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 409 transitions. [2024-10-24 12:04:27,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 12:04:27,559 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 409 transitions. [2024-10-24 12:04:27,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 12:04:27,562 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:04:27,563 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:04:27,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 12:04:27,563 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:04:27,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:04:27,563 INFO L85 PathProgramCache]: Analyzing trace with hash -92815311, now seen corresponding path program 1 times [2024-10-24 12:04:27,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:04:27,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799007820] [2024-10-24 12:04:27,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:04:27,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:04:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:04:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:04:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:04:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:04:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:04:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:04:28,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:04:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:04:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:04:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:04:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:04:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:04:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:04:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:04:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:04:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:04:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:04:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:04:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:04:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:04:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:28,889 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 12:04:28,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:04:28,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799007820] [2024-10-24 12:04:28,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799007820] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:04:28,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:04:28,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 12:04:28,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224466825] [2024-10-24 12:04:28,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:04:28,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 12:04:28,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:04:28,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 12:04:28,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 12:04:28,891 INFO L87 Difference]: Start difference. First operand 288 states and 409 transitions. Second operand has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 12:04:29,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:04:29,514 INFO L93 Difference]: Finished difference Result 547 states and 774 transitions. [2024-10-24 12:04:29,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:04:29,515 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 155 [2024-10-24 12:04:29,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:04:29,517 INFO L225 Difference]: With dead ends: 547 [2024-10-24 12:04:29,518 INFO L226 Difference]: Without dead ends: 374 [2024-10-24 12:04:29,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2024-10-24 12:04:29,520 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 146 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 12:04:29,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 421 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 12:04:29,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-10-24 12:04:29,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 371. [2024-10-24 12:04:29,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 319 states have (on average 1.347962382445141) internal successors, (430), 320 states have internal predecessors, (430), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 12:04:29,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 526 transitions. [2024-10-24 12:04:29,589 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 526 transitions. Word has length 155 [2024-10-24 12:04:29,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:04:29,590 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 526 transitions. [2024-10-24 12:04:29,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 12:04:29,590 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 526 transitions. [2024-10-24 12:04:29,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 12:04:29,591 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:04:29,592 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:04:29,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 12:04:29,592 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:04:29,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:04:29,592 INFO L85 PathProgramCache]: Analyzing trace with hash -332526037, now seen corresponding path program 1 times [2024-10-24 12:04:29,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:04:29,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116885817] [2024-10-24 12:04:29,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:04:29,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:04:29,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:04:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:04:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:04:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:04:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:04:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:04:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:04:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:04:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:04:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:04:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:04:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:04:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:04:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:04:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:04:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:04:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:04:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:04:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:04:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:04:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:31,358 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 12:04:31,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:04:31,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116885817] [2024-10-24 12:04:31,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116885817] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:04:31,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:04:31,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 12:04:31,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311230949] [2024-10-24 12:04:31,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:04:31,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 12:04:31,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:04:31,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 12:04:31,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-10-24 12:04:31,360 INFO L87 Difference]: Start difference. First operand 371 states and 526 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 12:04:32,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:04:32,260 INFO L93 Difference]: Finished difference Result 712 states and 1005 transitions. [2024-10-24 12:04:32,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 12:04:32,260 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2024-10-24 12:04:32,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:04:32,266 INFO L225 Difference]: With dead ends: 712 [2024-10-24 12:04:32,266 INFO L226 Difference]: Without dead ends: 470 [2024-10-24 12:04:32,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2024-10-24 12:04:32,269 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 245 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 12:04:32,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 363 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 12:04:32,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-10-24 12:04:32,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 409. [2024-10-24 12:04:32,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 357 states have (on average 1.3557422969187676) internal successors, (484), 358 states have internal predecessors, (484), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 12:04:32,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 580 transitions. [2024-10-24 12:04:32,355 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 580 transitions. Word has length 155 [2024-10-24 12:04:32,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:04:32,361 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 580 transitions. [2024-10-24 12:04:32,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 12:04:32,361 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 580 transitions. [2024-10-24 12:04:32,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 12:04:32,362 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:04:32,362 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:04:32,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 12:04:32,363 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:04:32,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:04:32,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1612389715, now seen corresponding path program 1 times [2024-10-24 12:04:32,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:04:32,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894995134] [2024-10-24 12:04:32,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:04:32,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:04:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:04:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:04:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:04:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:04:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:04:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:04:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:04:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:04:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:04:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:04:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:04:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:04:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:04:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:04:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:04:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:04:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:04:32,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:04:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:04:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:04:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:32,671 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 12:04:32,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:04:32,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894995134] [2024-10-24 12:04:32,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894995134] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:04:32,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:04:32,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 12:04:32,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643874981] [2024-10-24 12:04:32,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:04:32,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 12:04:32,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:04:32,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 12:04:32,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:04:32,673 INFO L87 Difference]: Start difference. First operand 409 states and 580 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 12:04:32,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:04:32,867 INFO L93 Difference]: Finished difference Result 653 states and 924 transitions. [2024-10-24 12:04:32,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 12:04:32,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-10-24 12:04:32,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:04:32,871 INFO L225 Difference]: With dead ends: 653 [2024-10-24 12:04:32,871 INFO L226 Difference]: Without dead ends: 371 [2024-10-24 12:04:32,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:04:32,873 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 12:04:32,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 409 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 12:04:32,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-10-24 12:04:32,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2024-10-24 12:04:32,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 319 states have (on average 1.341692789968652) internal successors, (428), 320 states have internal predecessors, (428), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 12:04:32,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 524 transitions. [2024-10-24 12:04:32,950 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 524 transitions. Word has length 155 [2024-10-24 12:04:32,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:04:32,951 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 524 transitions. [2024-10-24 12:04:32,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 12:04:32,951 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 524 transitions. [2024-10-24 12:04:32,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 12:04:32,953 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:04:32,953 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:04:32,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 12:04:32,953 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:04:32,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:04:32,954 INFO L85 PathProgramCache]: Analyzing trace with hash -270486423, now seen corresponding path program 1 times [2024-10-24 12:04:32,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:04:32,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613861588] [2024-10-24 12:04:32,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:04:32,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:04:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:04:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:04:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:04:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:04:34,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:04:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:04:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:04:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:04:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:04:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:04:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:04:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:04:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:04:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:04:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:04:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:04:34,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:04:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:04:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:04:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:04:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:34,570 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 12:04:34,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:04:34,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613861588] [2024-10-24 12:04:34,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613861588] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:04:34,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:04:34,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 12:04:34,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031853133] [2024-10-24 12:04:34,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:04:34,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 12:04:34,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:04:34,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 12:04:34,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-10-24 12:04:34,572 INFO L87 Difference]: Start difference. First operand 371 states and 524 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 12:04:35,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:04:35,346 INFO L93 Difference]: Finished difference Result 694 states and 977 transitions. [2024-10-24 12:04:35,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 12:04:35,347 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2024-10-24 12:04:35,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:04:35,350 INFO L225 Difference]: With dead ends: 694 [2024-10-24 12:04:35,350 INFO L226 Difference]: Without dead ends: 452 [2024-10-24 12:04:35,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-10-24 12:04:35,351 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 203 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 12:04:35,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 375 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 12:04:35,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-10-24 12:04:35,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 391. [2024-10-24 12:04:35,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 339 states have (on average 1.3480825958702065) internal successors, (457), 340 states have internal predecessors, (457), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 12:04:35,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 553 transitions. [2024-10-24 12:04:35,432 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 553 transitions. Word has length 155 [2024-10-24 12:04:35,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:04:35,433 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 553 transitions. [2024-10-24 12:04:35,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 12:04:35,433 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 553 transitions. [2024-10-24 12:04:35,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 12:04:35,434 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:04:35,434 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:04:35,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 12:04:35,435 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:04:35,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:04:35,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1550350101, now seen corresponding path program 1 times [2024-10-24 12:04:35,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:04:35,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664684698] [2024-10-24 12:04:35,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:04:35,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:04:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:36,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:04:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:36,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:04:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:36,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:04:36,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:37,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:04:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:37,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:04:37,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:37,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:04:37,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:37,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:04:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:37,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:04:37,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:37,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:04:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:37,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:04:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:37,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:04:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:37,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:04:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:37,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:04:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:37,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:04:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:37,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:04:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:37,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:04:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:37,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:04:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:37,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:04:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:37,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:04:37,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:37,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:04:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:37,107 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 12:04:37,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:04:37,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664684698] [2024-10-24 12:04:37,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664684698] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:04:37,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:04:37,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 12:04:37,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713935109] [2024-10-24 12:04:37,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:04:37,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 12:04:37,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:04:37,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 12:04:37,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-10-24 12:04:37,110 INFO L87 Difference]: Start difference. First operand 391 states and 553 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 12:04:38,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 12:04:38,345 INFO L93 Difference]: Finished difference Result 712 states and 1002 transitions. [2024-10-24 12:04:38,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 12:04:38,345 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2024-10-24 12:04:38,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 12:04:38,348 INFO L225 Difference]: With dead ends: 712 [2024-10-24 12:04:38,348 INFO L226 Difference]: Without dead ends: 452 [2024-10-24 12:04:38,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2024-10-24 12:04:38,350 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 254 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 12:04:38,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 557 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 12:04:38,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-10-24 12:04:38,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 393. [2024-10-24 12:04:38,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 341 states have (on average 1.346041055718475) internal successors, (459), 342 states have internal predecessors, (459), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-24 12:04:38,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 555 transitions. [2024-10-24 12:04:38,423 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 555 transitions. Word has length 155 [2024-10-24 12:04:38,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 12:04:38,423 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 555 transitions. [2024-10-24 12:04:38,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 12:04:38,424 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 555 transitions. [2024-10-24 12:04:38,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 12:04:38,425 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 12:04:38,425 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:04:38,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 12:04:38,426 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 12:04:38,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:04:38,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1427401589, now seen corresponding path program 1 times [2024-10-24 12:04:38,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:04:38,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747798356] [2024-10-24 12:04:38,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:04:38,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:04:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 12:04:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 12:04:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 12:04:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 12:04:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 12:04:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 12:04:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 12:04:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 12:04:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 12:04:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 12:04:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 12:04:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 12:04:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 12:04:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 12:04:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 12:04:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 12:04:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 12:04:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 12:04:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 12:04:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 12:04:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:04:39,782 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 12:04:39,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:04:39,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747798356] [2024-10-24 12:04:39,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747798356] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:04:39,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:04:39,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 12:04:39,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894331678] [2024-10-24 12:04:39,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:04:39,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 12:04:39,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:04:39,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 12:04:39,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-24 12:04:39,785 INFO L87 Difference]: Start difference. First operand 393 states and 555 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)