./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label19.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/eca-rers2012/Problem15_label19.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '2d6129311caad436efd8aeb5ae8e8416588f34a9e58c3ca845c70b3697b0a672'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem15_label19.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d6129311caad436efd8aeb5ae8e8416588f34a9e58c3ca845c70b3697b0a672 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 19:56:19,657 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 19:56:19,726 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 19:56:19,729 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 19:56:19,730 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 19:56:19,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 19:56:19,752 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 19:56:19,752 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 19:56:19,753 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 19:56:19,753 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 19:56:19,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 19:56:19,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 19:56:19,754 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 19:56:19,754 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 19:56:19,754 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 19:56:19,755 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 19:56:19,755 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 19:56:19,755 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 19:56:19,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 19:56:19,755 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 19:56:19,755 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 19:56:19,756 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:56:19,756 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 19:56:19,756 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> 2d6129311caad436efd8aeb5ae8e8416588f34a9e58c3ca845c70b3697b0a672 [2024-11-06 19:56:19,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 19:56:19,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 19:56:19,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 19:56:19,990 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 19:56:19,990 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 19:56:19,991 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label19.c [2024-11-06 19:56:21,209 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 19:56:21,493 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 19:56:21,494 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label19.c [2024-11-06 19:56:21,511 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f2d382000/73798b1179f748beab7917783bd888c7/FLAGef3ac559c [2024-11-06 19:56:21,768 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f2d382000/73798b1179f748beab7917783bd888c7 [2024-11-06 19:56:21,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 19:56:21,771 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 19:56:21,772 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 19:56:21,772 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 19:56:21,775 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 19:56:21,776 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:56:21" (1/1) ... [2024-11-06 19:56:21,776 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d2be7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:56:21, skipping insertion in model container [2024-11-06 19:56:21,776 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:56:21" (1/1) ... [2024-11-06 19:56:21,814 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 19:56:21,950 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label19.c[5585,5598] [2024-11-06 19:56:22,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:56:22,201 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 19:56:22,221 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label19.c[5585,5598] [2024-11-06 19:56:22,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:56:22,363 INFO L204 MainTranslator]: Completed translation [2024-11-06 19:56:22,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:56:22 WrapperNode [2024-11-06 19:56:22,365 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 19:56:22,366 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 19:56:22,366 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 19:56:22,366 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 19:56:22,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:56:22" (1/1) ... [2024-11-06 19:56:22,406 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:56:22" (1/1) ... [2024-11-06 19:56:22,571 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1760 [2024-11-06 19:56:22,572 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 19:56:22,572 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 19:56:22,572 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 19:56:22,573 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 19:56:22,579 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:56:22" (1/1) ... [2024-11-06 19:56:22,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:56:22" (1/1) ... [2024-11-06 19:56:22,603 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:56:22" (1/1) ... [2024-11-06 19:56:22,707 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-06 19:56:22,707 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:56:22" (1/1) ... [2024-11-06 19:56:22,707 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:56:22" (1/1) ... [2024-11-06 19:56:22,758 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:56:22" (1/1) ... [2024-11-06 19:56:22,772 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:56:22" (1/1) ... [2024-11-06 19:56:22,793 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:56:22" (1/1) ... [2024-11-06 19:56:22,802 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:56:22" (1/1) ... [2024-11-06 19:56:22,829 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 19:56:22,830 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 19:56:22,830 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 19:56:22,830 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 19:56:22,831 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:56:22" (1/1) ... [2024-11-06 19:56:22,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:56:22,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:56:22,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-06 19:56:22,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-06 19:56:22,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 19:56:22,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 19:56:22,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 19:56:22,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 19:56:22,935 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 19:56:22,937 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 19:56:24,858 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2024-11-06 19:56:24,858 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 19:56:24,877 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 19:56:24,878 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 19:56:24,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:56:24 BoogieIcfgContainer [2024-11-06 19:56:24,878 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 19:56:24,883 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 19:56:24,883 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 19:56:24,887 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 19:56:24,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:56:21" (1/3) ... [2024-11-06 19:56:24,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce3db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:56:24, skipping insertion in model container [2024-11-06 19:56:24,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:56:22" (2/3) ... [2024-11-06 19:56:24,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce3db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:56:24, skipping insertion in model container [2024-11-06 19:56:24,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:56:24" (3/3) ... [2024-11-06 19:56:24,888 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label19.c [2024-11-06 19:56:24,898 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 19:56:24,899 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 19:56:24,975 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 19:56:24,994 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;@585c9322, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 19:56:24,995 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 19:56:25,006 INFO L276 IsEmpty]: Start isEmpty. Operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:25,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-06 19:56:25,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:25,016 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:25,016 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:25,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:25,025 INFO L85 PathProgramCache]: Analyzing trace with hash -2068820151, now seen corresponding path program 1 times [2024-11-06 19:56:25,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:25,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553256993] [2024-11-06 19:56:25,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:25,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:25,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:56:25,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:25,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553256993] [2024-11-06 19:56:25,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553256993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:25,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:25,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:56:25,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048902755] [2024-11-06 19:56:25,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:25,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:25,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:25,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:25,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:25,322 INFO L87 Difference]: Start difference. First operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:26,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:26,805 INFO L93 Difference]: Finished difference Result 1154 states and 2106 transitions. [2024-11-06 19:56:26,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:26,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2024-11-06 19:56:26,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:26,816 INFO L225 Difference]: With dead ends: 1154 [2024-11-06 19:56:26,816 INFO L226 Difference]: Without dead ends: 665 [2024-11-06 19:56:26,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:26,820 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 276 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:26,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 383 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-06 19:56:26,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-06 19:56:26,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 663. [2024-11-06 19:56:26,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 662 states have (on average 1.4818731117824773) internal successors, (981), 662 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:26,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 981 transitions. [2024-11-06 19:56:26,862 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 981 transitions. Word has length 45 [2024-11-06 19:56:26,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:26,862 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 981 transitions. [2024-11-06 19:56:26,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:26,862 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 981 transitions. [2024-11-06 19:56:26,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-06 19:56:26,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:26,864 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:26,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 19:56:26,865 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:26,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:26,865 INFO L85 PathProgramCache]: Analyzing trace with hash 416619247, now seen corresponding path program 1 times [2024-11-06 19:56:26,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:26,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971330640] [2024-11-06 19:56:26,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:26,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:27,198 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:56:27,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:27,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971330640] [2024-11-06 19:56:27,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971330640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:27,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:27,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:56:27,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295191366] [2024-11-06 19:56:27,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:27,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:27,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:27,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:27,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:27,201 INFO L87 Difference]: Start difference. First operand 663 states and 981 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:28,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:28,264 INFO L93 Difference]: Finished difference Result 1624 states and 2315 transitions. [2024-11-06 19:56:28,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:28,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-11-06 19:56:28,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:28,267 INFO L225 Difference]: With dead ends: 1624 [2024-11-06 19:56:28,268 INFO L226 Difference]: Without dead ends: 963 [2024-11-06 19:56:28,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:28,269 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 237 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:28,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 337 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-06 19:56:28,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-11-06 19:56:28,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2024-11-06 19:56:28,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 962 states have (on average 1.362785862785863) internal successors, (1311), 962 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:28,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1311 transitions. [2024-11-06 19:56:28,290 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1311 transitions. Word has length 110 [2024-11-06 19:56:28,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:28,291 INFO L471 AbstractCegarLoop]: Abstraction has 963 states and 1311 transitions. [2024-11-06 19:56:28,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:28,291 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1311 transitions. [2024-11-06 19:56:28,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-06 19:56:28,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:28,292 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:28,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 19:56:28,292 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:28,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:28,293 INFO L85 PathProgramCache]: Analyzing trace with hash 399406558, now seen corresponding path program 1 times [2024-11-06 19:56:28,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:28,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891225124] [2024-11-06 19:56:28,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:28,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:28,427 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:56:28,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:28,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891225124] [2024-11-06 19:56:28,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891225124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:28,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:28,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:56:28,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072219136] [2024-11-06 19:56:28,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:28,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:28,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:28,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:28,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:28,428 INFO L87 Difference]: Start difference. First operand 963 states and 1311 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:30,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:30,060 INFO L93 Difference]: Finished difference Result 2229 states and 3186 transitions. [2024-11-06 19:56:30,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:30,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2024-11-06 19:56:30,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:30,068 INFO L225 Difference]: With dead ends: 2229 [2024-11-06 19:56:30,068 INFO L226 Difference]: Without dead ends: 1567 [2024-11-06 19:56:30,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:30,073 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 258 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:30,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 316 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-06 19:56:30,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2024-11-06 19:56:30,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1266. [2024-11-06 19:56:30,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1265 states have (on average 1.3051383399209486) internal successors, (1651), 1265 states have internal predecessors, (1651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:30,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1651 transitions. [2024-11-06 19:56:30,102 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1651 transitions. Word has length 115 [2024-11-06 19:56:30,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:30,104 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1651 transitions. [2024-11-06 19:56:30,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:30,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1651 transitions. [2024-11-06 19:56:30,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-06 19:56:30,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:30,108 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:30,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 19:56:30,109 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:30,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:30,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1837727490, now seen corresponding path program 1 times [2024-11-06 19:56:30,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:30,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494432175] [2024-11-06 19:56:30,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:30,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:30,271 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:56:30,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:30,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494432175] [2024-11-06 19:56:30,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494432175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:30,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:30,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:56:30,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399371817] [2024-11-06 19:56:30,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:30,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:30,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:30,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:30,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:30,272 INFO L87 Difference]: Start difference. First operand 1266 states and 1651 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:31,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:31,562 INFO L93 Difference]: Finished difference Result 3133 states and 4193 transitions. [2024-11-06 19:56:31,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:31,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2024-11-06 19:56:31,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:31,568 INFO L225 Difference]: With dead ends: 3133 [2024-11-06 19:56:31,568 INFO L226 Difference]: Without dead ends: 1869 [2024-11-06 19:56:31,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:31,570 INFO L432 NwaCegarLoop]: 571 mSDtfsCounter, 299 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:31,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 614 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-06 19:56:31,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1869 states. [2024-11-06 19:56:31,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1869 to 1869. [2024-11-06 19:56:31,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1869 states, 1868 states have (on average 1.2441113490364026) internal successors, (2324), 1868 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:31,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1869 states to 1869 states and 2324 transitions. [2024-11-06 19:56:31,624 INFO L78 Accepts]: Start accepts. Automaton has 1869 states and 2324 transitions. Word has length 136 [2024-11-06 19:56:31,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:31,624 INFO L471 AbstractCegarLoop]: Abstraction has 1869 states and 2324 transitions. [2024-11-06 19:56:31,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:31,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1869 states and 2324 transitions. [2024-11-06 19:56:31,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-06 19:56:31,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:31,631 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:31,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 19:56:31,631 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:31,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:31,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1409965138, now seen corresponding path program 1 times [2024-11-06 19:56:31,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:31,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620267092] [2024-11-06 19:56:31,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:31,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:31,815 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-06 19:56:31,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:31,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620267092] [2024-11-06 19:56:31,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620267092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:31,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:31,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:56:31,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567732465] [2024-11-06 19:56:31,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:31,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:31,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:31,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:31,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:31,818 INFO L87 Difference]: Start difference. First operand 1869 states and 2324 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:32,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:32,904 INFO L93 Difference]: Finished difference Result 5240 states and 6569 transitions. [2024-11-06 19:56:32,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:32,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 204 [2024-11-06 19:56:32,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:32,911 INFO L225 Difference]: With dead ends: 5240 [2024-11-06 19:56:32,911 INFO L226 Difference]: Without dead ends: 2775 [2024-11-06 19:56:32,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:32,913 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 257 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:32,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 333 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-06 19:56:32,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2024-11-06 19:56:32,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 2771. [2024-11-06 19:56:32,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2770 states have (on average 1.151985559566787) internal successors, (3191), 2770 states have internal predecessors, (3191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:32,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 3191 transitions. [2024-11-06 19:56:32,947 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 3191 transitions. Word has length 204 [2024-11-06 19:56:32,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:32,948 INFO L471 AbstractCegarLoop]: Abstraction has 2771 states and 3191 transitions. [2024-11-06 19:56:32,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:32,948 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 3191 transitions. [2024-11-06 19:56:32,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-06 19:56:32,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:32,951 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:32,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 19:56:32,952 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:32,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:32,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1954499346, now seen corresponding path program 1 times [2024-11-06 19:56:32,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:32,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632887489] [2024-11-06 19:56:32,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:32,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:33,276 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:56:33,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:33,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632887489] [2024-11-06 19:56:33,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632887489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:33,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:33,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:56:33,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60954367] [2024-11-06 19:56:33,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:33,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:56:33,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:33,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:56:33,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:56:33,278 INFO L87 Difference]: Start difference. First operand 2771 states and 3191 transitions. Second operand has 4 states, 4 states have (on average 69.5) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:35,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:35,694 INFO L93 Difference]: Finished difference Result 8252 states and 9471 transitions. [2024-11-06 19:56:35,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:56:35,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 69.5) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 278 [2024-11-06 19:56:35,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:35,704 INFO L225 Difference]: With dead ends: 8252 [2024-11-06 19:56:35,705 INFO L226 Difference]: Without dead ends: 5184 [2024-11-06 19:56:35,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:56:35,708 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 464 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1716 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 1716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:35,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 123 Invalid, 2007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 1716 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-06 19:56:35,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5184 states. [2024-11-06 19:56:35,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5184 to 4574. [2024-11-06 19:56:35,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4574 states, 4573 states have (on average 1.1550404548436475) internal successors, (5282), 4573 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:35,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4574 states to 4574 states and 5282 transitions. [2024-11-06 19:56:35,762 INFO L78 Accepts]: Start accepts. Automaton has 4574 states and 5282 transitions. Word has length 278 [2024-11-06 19:56:35,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:35,762 INFO L471 AbstractCegarLoop]: Abstraction has 4574 states and 5282 transitions. [2024-11-06 19:56:35,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.5) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:35,762 INFO L276 IsEmpty]: Start isEmpty. Operand 4574 states and 5282 transitions. [2024-11-06 19:56:35,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-11-06 19:56:35,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:35,765 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:35,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 19:56:35,765 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:35,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:35,765 INFO L85 PathProgramCache]: Analyzing trace with hash -499462257, now seen corresponding path program 1 times [2024-11-06 19:56:35,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:35,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95697607] [2024-11-06 19:56:35,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:35,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:36,176 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-06 19:56:36,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:36,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95697607] [2024-11-06 19:56:36,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95697607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:36,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:36,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:56:36,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879576658] [2024-11-06 19:56:36,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:36,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:36,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:36,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:36,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:36,179 INFO L87 Difference]: Start difference. First operand 4574 states and 5282 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 2 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:37,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:37,311 INFO L93 Difference]: Finished difference Result 8847 states and 10259 transitions. [2024-11-06 19:56:37,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:37,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 2 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 322 [2024-11-06 19:56:37,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:37,320 INFO L225 Difference]: With dead ends: 8847 [2024-11-06 19:56:37,321 INFO L226 Difference]: Without dead ends: 4574 [2024-11-06 19:56:37,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:37,324 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 105 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:37,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 305 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-06 19:56:37,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4574 states. [2024-11-06 19:56:37,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4574 to 4574. [2024-11-06 19:56:37,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4574 states, 4573 states have (on average 1.1546031051825936) internal successors, (5280), 4573 states have internal predecessors, (5280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:37,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4574 states to 4574 states and 5280 transitions. [2024-11-06 19:56:37,386 INFO L78 Accepts]: Start accepts. Automaton has 4574 states and 5280 transitions. Word has length 322 [2024-11-06 19:56:37,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:37,386 INFO L471 AbstractCegarLoop]: Abstraction has 4574 states and 5280 transitions. [2024-11-06 19:56:37,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 2 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:37,386 INFO L276 IsEmpty]: Start isEmpty. Operand 4574 states and 5280 transitions. [2024-11-06 19:56:37,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-11-06 19:56:37,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:37,389 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:37,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 19:56:37,390 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:37,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:37,390 INFO L85 PathProgramCache]: Analyzing trace with hash -511012063, now seen corresponding path program 1 times [2024-11-06 19:56:37,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:37,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553834000] [2024-11-06 19:56:37,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:37,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:37,630 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:56:37,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:37,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553834000] [2024-11-06 19:56:37,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553834000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:37,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:37,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:56:37,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087117562] [2024-11-06 19:56:37,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:37,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:37,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:37,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:37,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:37,632 INFO L87 Difference]: Start difference. First operand 4574 states and 5280 transitions. Second operand has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:38,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:38,943 INFO L93 Difference]: Finished difference Result 11252 states and 13241 transitions. [2024-11-06 19:56:38,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:38,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 396 [2024-11-06 19:56:38,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:38,957 INFO L225 Difference]: With dead ends: 11252 [2024-11-06 19:56:38,957 INFO L226 Difference]: Without dead ends: 6979 [2024-11-06 19:56:38,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:38,962 INFO L432 NwaCegarLoop]: 565 mSDtfsCounter, 237 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:38,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 602 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-06 19:56:38,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6979 states. [2024-11-06 19:56:39,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6979 to 6976. [2024-11-06 19:56:39,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6976 states, 6975 states have (on average 1.1201433691756273) internal successors, (7813), 6975 states have internal predecessors, (7813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:39,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6976 states to 6976 states and 7813 transitions. [2024-11-06 19:56:39,041 INFO L78 Accepts]: Start accepts. Automaton has 6976 states and 7813 transitions. Word has length 396 [2024-11-06 19:56:39,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:39,042 INFO L471 AbstractCegarLoop]: Abstraction has 6976 states and 7813 transitions. [2024-11-06 19:56:39,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:39,042 INFO L276 IsEmpty]: Start isEmpty. Operand 6976 states and 7813 transitions. [2024-11-06 19:56:39,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2024-11-06 19:56:39,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:39,046 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:39,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 19:56:39,046 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:39,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:39,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1680735344, now seen corresponding path program 1 times [2024-11-06 19:56:39,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:39,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681381834] [2024-11-06 19:56:39,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:39,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:39,530 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-06 19:56:39,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:39,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681381834] [2024-11-06 19:56:39,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681381834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:39,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:39,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:56:39,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079609025] [2024-11-06 19:56:39,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:39,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:39,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:39,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:39,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:39,532 INFO L87 Difference]: Start difference. First operand 6976 states and 7813 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:40,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:40,704 INFO L93 Difference]: Finished difference Result 16051 states and 18300 transitions. [2024-11-06 19:56:40,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:40,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 422 [2024-11-06 19:56:40,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:40,723 INFO L225 Difference]: With dead ends: 16051 [2024-11-06 19:56:40,723 INFO L226 Difference]: Without dead ends: 9376 [2024-11-06 19:56:40,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:40,730 INFO L432 NwaCegarLoop]: 531 mSDtfsCounter, 280 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:40,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 568 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-06 19:56:40,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9376 states. [2024-11-06 19:56:40,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9376 to 9368. [2024-11-06 19:56:40,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9368 states, 9367 states have (on average 1.105476673427992) internal successors, (10355), 9367 states have internal predecessors, (10355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:40,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9368 states to 9368 states and 10355 transitions. [2024-11-06 19:56:40,856 INFO L78 Accepts]: Start accepts. Automaton has 9368 states and 10355 transitions. Word has length 422 [2024-11-06 19:56:40,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:40,856 INFO L471 AbstractCegarLoop]: Abstraction has 9368 states and 10355 transitions. [2024-11-06 19:56:40,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:40,857 INFO L276 IsEmpty]: Start isEmpty. Operand 9368 states and 10355 transitions. [2024-11-06 19:56:40,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-06 19:56:40,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:40,858 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:40,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-06 19:56:40,859 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:40,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:40,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1007889848, now seen corresponding path program 1 times [2024-11-06 19:56:40,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:40,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155316731] [2024-11-06 19:56:40,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:40,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:41,295 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-06 19:56:41,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:41,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155316731] [2024-11-06 19:56:41,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155316731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:41,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:41,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:56:41,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326596468] [2024-11-06 19:56:41,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:41,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:56:41,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:41,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:56:41,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:56:41,298 INFO L87 Difference]: Start difference. First operand 9368 states and 10355 transitions. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:43,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:43,346 INFO L93 Difference]: Finished difference Result 20242 states and 22546 transitions. [2024-11-06 19:56:43,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:56:43,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 458 [2024-11-06 19:56:43,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:43,369 INFO L225 Difference]: With dead ends: 20242 [2024-11-06 19:56:43,369 INFO L226 Difference]: Without dead ends: 11776 [2024-11-06 19:56:43,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:56:43,375 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 443 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 488 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 2144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 488 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:43,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 115 Invalid, 2144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [488 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-06 19:56:43,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11776 states. [2024-11-06 19:56:43,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11776 to 9370. [2024-11-06 19:56:43,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9370 states, 9369 states have (on average 1.1033194577863166) internal successors, (10337), 9369 states have internal predecessors, (10337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:43,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9370 states to 9370 states and 10337 transitions. [2024-11-06 19:56:43,452 INFO L78 Accepts]: Start accepts. Automaton has 9370 states and 10337 transitions. Word has length 458 [2024-11-06 19:56:43,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:43,453 INFO L471 AbstractCegarLoop]: Abstraction has 9370 states and 10337 transitions. [2024-11-06 19:56:43,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:43,454 INFO L276 IsEmpty]: Start isEmpty. Operand 9370 states and 10337 transitions. [2024-11-06 19:56:43,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2024-11-06 19:56:43,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:43,456 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:43,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-06 19:56:43,457 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:43,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:43,457 INFO L85 PathProgramCache]: Analyzing trace with hash -874931667, now seen corresponding path program 1 times [2024-11-06 19:56:43,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:43,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267112680] [2024-11-06 19:56:43,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:43,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:43,601 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2024-11-06 19:56:43,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:43,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267112680] [2024-11-06 19:56:43,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267112680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:43,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:43,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:56:43,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073075962] [2024-11-06 19:56:43,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:43,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:43,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:43,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:43,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:43,603 INFO L87 Difference]: Start difference. First operand 9370 states and 10337 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:44,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:44,730 INFO L93 Difference]: Finished difference Result 20824 states and 23292 transitions. [2024-11-06 19:56:44,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:44,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 519 [2024-11-06 19:56:44,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:44,772 INFO L225 Difference]: With dead ends: 20824 [2024-11-06 19:56:44,775 INFO L226 Difference]: Without dead ends: 12655 [2024-11-06 19:56:44,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:44,791 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 283 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:44,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 257 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-06 19:56:44,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12655 states. [2024-11-06 19:56:44,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12655 to 9659. [2024-11-06 19:56:44,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9659 states, 9658 states have (on average 1.1214537171256989) internal successors, (10831), 9658 states have internal predecessors, (10831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:44,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9659 states to 9659 states and 10831 transitions. [2024-11-06 19:56:44,994 INFO L78 Accepts]: Start accepts. Automaton has 9659 states and 10831 transitions. Word has length 519 [2024-11-06 19:56:44,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:44,994 INFO L471 AbstractCegarLoop]: Abstraction has 9659 states and 10831 transitions. [2024-11-06 19:56:44,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:44,995 INFO L276 IsEmpty]: Start isEmpty. Operand 9659 states and 10831 transitions. [2024-11-06 19:56:44,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2024-11-06 19:56:44,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:45,000 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:45,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-06 19:56:45,000 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:45,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:45,001 INFO L85 PathProgramCache]: Analyzing trace with hash -668509625, now seen corresponding path program 1 times [2024-11-06 19:56:45,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:45,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565683082] [2024-11-06 19:56:45,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:45,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:45,189 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-06 19:56:45,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:45,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565683082] [2024-11-06 19:56:45,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565683082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:45,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:45,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:56:45,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18883230] [2024-11-06 19:56:45,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:45,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:45,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:45,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:45,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:45,191 INFO L87 Difference]: Start difference. First operand 9659 states and 10831 transitions. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:46,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:46,104 INFO L93 Difference]: Finished difference Result 19314 states and 21662 transitions. [2024-11-06 19:56:46,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:46,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 546 [2024-11-06 19:56:46,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:46,120 INFO L225 Difference]: With dead ends: 19314 [2024-11-06 19:56:46,120 INFO L226 Difference]: Without dead ends: 9956 [2024-11-06 19:56:46,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:46,127 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 462 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:46,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 68 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 19:56:46,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9956 states. [2024-11-06 19:56:46,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9956 to 9657. [2024-11-06 19:56:46,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9657 states, 9656 states have (on average 1.121271748135874) internal successors, (10827), 9656 states have internal predecessors, (10827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:46,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9657 states to 9657 states and 10827 transitions. [2024-11-06 19:56:46,203 INFO L78 Accepts]: Start accepts. Automaton has 9657 states and 10827 transitions. Word has length 546 [2024-11-06 19:56:46,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:46,204 INFO L471 AbstractCegarLoop]: Abstraction has 9657 states and 10827 transitions. [2024-11-06 19:56:46,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:46,204 INFO L276 IsEmpty]: Start isEmpty. Operand 9657 states and 10827 transitions. [2024-11-06 19:56:46,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2024-11-06 19:56:46,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:46,208 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:46,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-06 19:56:46,209 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:46,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:46,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1770248904, now seen corresponding path program 1 times [2024-11-06 19:56:46,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:46,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008384815] [2024-11-06 19:56:46,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:46,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:46,358 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-06 19:56:46,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:46,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008384815] [2024-11-06 19:56:46,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008384815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:46,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:46,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:56:46,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837777809] [2024-11-06 19:56:46,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:46,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:46,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:46,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:46,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:46,361 INFO L87 Difference]: Start difference. First operand 9657 states and 10827 transitions. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:47,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:47,285 INFO L93 Difference]: Finished difference Result 21405 states and 24087 transitions. [2024-11-06 19:56:47,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:47,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 555 [2024-11-06 19:56:47,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:47,298 INFO L225 Difference]: With dead ends: 21405 [2024-11-06 19:56:47,298 INFO L226 Difference]: Without dead ends: 11451 [2024-11-06 19:56:47,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:47,304 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 265 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:47,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 281 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 19:56:47,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11451 states. [2024-11-06 19:56:47,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11451 to 9053. [2024-11-06 19:56:47,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9053 states, 9052 states have (on average 1.1019664162615996) internal successors, (9975), 9052 states have internal predecessors, (9975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:47,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9053 states to 9053 states and 9975 transitions. [2024-11-06 19:56:47,373 INFO L78 Accepts]: Start accepts. Automaton has 9053 states and 9975 transitions. Word has length 555 [2024-11-06 19:56:47,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:47,374 INFO L471 AbstractCegarLoop]: Abstraction has 9053 states and 9975 transitions. [2024-11-06 19:56:47,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:47,374 INFO L276 IsEmpty]: Start isEmpty. Operand 9053 states and 9975 transitions. [2024-11-06 19:56:47,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2024-11-06 19:56:47,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:47,377 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:47,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-06 19:56:47,378 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:47,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:47,378 INFO L85 PathProgramCache]: Analyzing trace with hash -289831746, now seen corresponding path program 1 times [2024-11-06 19:56:47,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:47,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33574393] [2024-11-06 19:56:47,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:47,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:47,963 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 86 proven. 297 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-06 19:56:47,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:47,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33574393] [2024-11-06 19:56:47,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33574393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:56:47,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885149263] [2024-11-06 19:56:47,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:47,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:56:47,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:56:47,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:56:47,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 19:56:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:48,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:56:48,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:56:48,273 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2024-11-06 19:56:48,273 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:56:48,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885149263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:48,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:56:48,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-06 19:56:48,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885496143] [2024-11-06 19:56:48,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:48,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:48,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:48,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:48,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:56:48,276 INFO L87 Difference]: Start difference. First operand 9053 states and 9975 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:49,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:49,129 INFO L93 Difference]: Finished difference Result 17802 states and 19642 transitions. [2024-11-06 19:56:49,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:49,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 572 [2024-11-06 19:56:49,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:49,139 INFO L225 Difference]: With dead ends: 17802 [2024-11-06 19:56:49,139 INFO L226 Difference]: Without dead ends: 9050 [2024-11-06 19:56:49,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 573 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:56:49,147 INFO L432 NwaCegarLoop]: 469 mSDtfsCounter, 301 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:49,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 497 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 19:56:49,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9050 states. [2024-11-06 19:56:49,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9050 to 8452. [2024-11-06 19:56:49,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8452 states, 8451 states have (on average 1.067565968524435) internal successors, (9022), 8451 states have internal predecessors, (9022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:49,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8452 states to 8452 states and 9022 transitions. [2024-11-06 19:56:49,235 INFO L78 Accepts]: Start accepts. Automaton has 8452 states and 9022 transitions. Word has length 572 [2024-11-06 19:56:49,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:49,236 INFO L471 AbstractCegarLoop]: Abstraction has 8452 states and 9022 transitions. [2024-11-06 19:56:49,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:49,236 INFO L276 IsEmpty]: Start isEmpty. Operand 8452 states and 9022 transitions. [2024-11-06 19:56:49,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2024-11-06 19:56:49,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:49,242 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:49,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-06 19:56:49,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-06 19:56:49,443 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:49,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:49,444 INFO L85 PathProgramCache]: Analyzing trace with hash -910889367, now seen corresponding path program 1 times [2024-11-06 19:56:49,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:49,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278143039] [2024-11-06 19:56:49,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:49,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:49,745 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2024-11-06 19:56:49,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:49,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278143039] [2024-11-06 19:56:49,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278143039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:49,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:49,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:56:49,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156398042] [2024-11-06 19:56:49,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:49,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:49,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:49,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:49,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:49,749 INFO L87 Difference]: Start difference. First operand 8452 states and 9022 transitions. Second operand has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:50,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:50,712 INFO L93 Difference]: Finished difference Result 21100 states and 22518 transitions. [2024-11-06 19:56:50,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:50,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 612 [2024-11-06 19:56:50,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:50,724 INFO L225 Difference]: With dead ends: 21100 [2024-11-06 19:56:50,724 INFO L226 Difference]: Without dead ends: 12949 [2024-11-06 19:56:50,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:50,731 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 254 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:50,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 553 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 19:56:50,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12949 states. [2024-11-06 19:56:50,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12949 to 12940. [2024-11-06 19:56:50,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12940 states, 12939 states have (on average 1.0554138650591236) internal successors, (13656), 12939 states have internal predecessors, (13656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:50,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12940 states to 12940 states and 13656 transitions. [2024-11-06 19:56:50,816 INFO L78 Accepts]: Start accepts. Automaton has 12940 states and 13656 transitions. Word has length 612 [2024-11-06 19:56:50,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:50,816 INFO L471 AbstractCegarLoop]: Abstraction has 12940 states and 13656 transitions. [2024-11-06 19:56:50,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:50,817 INFO L276 IsEmpty]: Start isEmpty. Operand 12940 states and 13656 transitions. [2024-11-06 19:56:50,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2024-11-06 19:56:50,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:50,822 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:50,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-06 19:56:50,822 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:50,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:50,823 INFO L85 PathProgramCache]: Analyzing trace with hash -319513019, now seen corresponding path program 1 times [2024-11-06 19:56:50,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:50,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969972923] [2024-11-06 19:56:50,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:50,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:50,988 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 429 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-06 19:56:50,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:50,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969972923] [2024-11-06 19:56:50,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969972923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:50,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:50,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:56:50,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981903123] [2024-11-06 19:56:50,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:50,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:50,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:50,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:50,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:50,990 INFO L87 Difference]: Start difference. First operand 12940 states and 13656 transitions. Second operand has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:51,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:51,934 INFO L93 Difference]: Finished difference Result 27970 states and 29590 transitions. [2024-11-06 19:56:51,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:51,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 619 [2024-11-06 19:56:51,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:51,948 INFO L225 Difference]: With dead ends: 27970 [2024-11-06 19:56:51,948 INFO L226 Difference]: Without dead ends: 15331 [2024-11-06 19:56:51,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:51,954 INFO L432 NwaCegarLoop]: 413 mSDtfsCounter, 289 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:51,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 432 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 19:56:51,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15331 states. [2024-11-06 19:56:52,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15331 to 13238. [2024-11-06 19:56:52,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13238 states, 13237 states have (on average 1.052504343884566) internal successors, (13932), 13237 states have internal predecessors, (13932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:52,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13238 states to 13238 states and 13932 transitions. [2024-11-06 19:56:52,059 INFO L78 Accepts]: Start accepts. Automaton has 13238 states and 13932 transitions. Word has length 619 [2024-11-06 19:56:52,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:52,059 INFO L471 AbstractCegarLoop]: Abstraction has 13238 states and 13932 transitions. [2024-11-06 19:56:52,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:52,059 INFO L276 IsEmpty]: Start isEmpty. Operand 13238 states and 13932 transitions. [2024-11-06 19:56:52,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2024-11-06 19:56:52,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:52,065 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:52,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-06 19:56:52,066 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:52,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:52,066 INFO L85 PathProgramCache]: Analyzing trace with hash 335196122, now seen corresponding path program 1 times [2024-11-06 19:56:52,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:52,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537058194] [2024-11-06 19:56:52,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:52,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:52,425 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 431 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-06 19:56:52,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:52,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537058194] [2024-11-06 19:56:52,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537058194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:52,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:52,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:56:52,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714879826] [2024-11-06 19:56:52,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:52,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:52,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:52,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:52,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:52,427 INFO L87 Difference]: Start difference. First operand 13238 states and 13932 transitions. Second operand has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:53,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:53,852 INFO L93 Difference]: Finished difference Result 30383 states and 32015 transitions. [2024-11-06 19:56:53,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:53,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 661 [2024-11-06 19:56:53,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:53,866 INFO L225 Difference]: With dead ends: 30383 [2024-11-06 19:56:53,866 INFO L226 Difference]: Without dead ends: 17446 [2024-11-06 19:56:53,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:53,874 INFO L432 NwaCegarLoop]: 527 mSDtfsCounter, 237 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:53,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 565 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-06 19:56:53,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17446 states. [2024-11-06 19:56:53,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17446 to 16837. [2024-11-06 19:56:53,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16837 states, 16836 states have (on average 1.048408172962699) internal successors, (17651), 16836 states have internal predecessors, (17651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:53,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16837 states to 16837 states and 17651 transitions. [2024-11-06 19:56:53,990 INFO L78 Accepts]: Start accepts. Automaton has 16837 states and 17651 transitions. Word has length 661 [2024-11-06 19:56:53,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:53,991 INFO L471 AbstractCegarLoop]: Abstraction has 16837 states and 17651 transitions. [2024-11-06 19:56:53,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:53,991 INFO L276 IsEmpty]: Start isEmpty. Operand 16837 states and 17651 transitions. [2024-11-06 19:56:53,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2024-11-06 19:56:53,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:53,997 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:53,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-06 19:56:53,997 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:53,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:53,998 INFO L85 PathProgramCache]: Analyzing trace with hash 308478291, now seen corresponding path program 1 times [2024-11-06 19:56:53,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:53,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537495008] [2024-11-06 19:56:53,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:53,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:54,252 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 485 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2024-11-06 19:56:54,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:54,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537495008] [2024-11-06 19:56:54,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537495008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:54,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:54,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:56:54,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874287065] [2024-11-06 19:56:54,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:54,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:56:54,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:54,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:56:54,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:54,254 INFO L87 Difference]: Start difference. First operand 16837 states and 17651 transitions. Second operand has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:55,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:55,207 INFO L93 Difference]: Finished difference Result 35466 states and 37247 transitions. [2024-11-06 19:56:55,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:56:55,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 677 [2024-11-06 19:56:55,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:55,225 INFO L225 Difference]: With dead ends: 35466 [2024-11-06 19:56:55,225 INFO L226 Difference]: Without dead ends: 18930 [2024-11-06 19:56:55,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:56:55,237 INFO L432 NwaCegarLoop]: 518 mSDtfsCounter, 207 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:55,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 553 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 19:56:55,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18930 states. [2024-11-06 19:56:55,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18930 to 18332. [2024-11-06 19:56:55,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18332 states, 18331 states have (on average 1.0442965468332333) internal successors, (19143), 18331 states have internal predecessors, (19143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:55,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18332 states to 18332 states and 19143 transitions. [2024-11-06 19:56:55,441 INFO L78 Accepts]: Start accepts. Automaton has 18332 states and 19143 transitions. Word has length 677 [2024-11-06 19:56:55,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:55,442 INFO L471 AbstractCegarLoop]: Abstraction has 18332 states and 19143 transitions. [2024-11-06 19:56:55,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:55,442 INFO L276 IsEmpty]: Start isEmpty. Operand 18332 states and 19143 transitions. [2024-11-06 19:56:55,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2024-11-06 19:56:55,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:55,454 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:55,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-06 19:56:55,455 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:55,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:55,455 INFO L85 PathProgramCache]: Analyzing trace with hash 151347988, now seen corresponding path program 1 times [2024-11-06 19:56:55,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:55,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616223226] [2024-11-06 19:56:55,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:55,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:56,289 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 552 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2024-11-06 19:56:56,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:56,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616223226] [2024-11-06 19:56:56,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616223226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:56,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:56,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 19:56:56,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683390362] [2024-11-06 19:56:56,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:56,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:56:56,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:56,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:56:56,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:56:56,291 INFO L87 Difference]: Start difference. First operand 18332 states and 19143 transitions. Second operand has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:57,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:57,800 INFO L93 Difference]: Finished difference Result 45354 states and 47295 transitions. [2024-11-06 19:56:57,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:56:57,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 697 [2024-11-06 19:56:57,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:56:57,822 INFO L225 Difference]: With dead ends: 45354 [2024-11-06 19:56:57,823 INFO L226 Difference]: Without dead ends: 26725 [2024-11-06 19:56:57,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:56:57,836 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 560 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:56:57,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 115 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-06 19:56:57,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26725 states. [2024-11-06 19:56:58,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26725 to 18332. [2024-11-06 19:56:58,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18332 states, 18331 states have (on average 1.0442965468332333) internal successors, (19143), 18331 states have internal predecessors, (19143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:58,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18332 states to 18332 states and 19143 transitions. [2024-11-06 19:56:58,034 INFO L78 Accepts]: Start accepts. Automaton has 18332 states and 19143 transitions. Word has length 697 [2024-11-06 19:56:58,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:56:58,034 INFO L471 AbstractCegarLoop]: Abstraction has 18332 states and 19143 transitions. [2024-11-06 19:56:58,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:58,034 INFO L276 IsEmpty]: Start isEmpty. Operand 18332 states and 19143 transitions. [2024-11-06 19:56:58,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 718 [2024-11-06 19:56:58,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:56:58,042 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:56:58,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-06 19:56:58,042 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:56:58,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:56:58,043 INFO L85 PathProgramCache]: Analyzing trace with hash -494548069, now seen corresponding path program 1 times [2024-11-06 19:56:58,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:56:58,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105868568] [2024-11-06 19:56:58,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:56:58,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:56:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:56:58,580 INFO L134 CoverageAnalysis]: Checked inductivity of 927 backedges. 563 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-06 19:56:58,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:56:58,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105868568] [2024-11-06 19:56:58,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105868568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:56:58,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:56:58,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 19:56:58,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167620893] [2024-11-06 19:56:58,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:56:58,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:56:58,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:56:58,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:56:58,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:56:58,582 INFO L87 Difference]: Start difference. First operand 18332 states and 19143 transitions. Second operand has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:56:59,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:56:59,990 INFO L93 Difference]: Finished difference Result 46846 states and 48825 transitions. [2024-11-06 19:56:59,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:56:59,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 717 [2024-11-06 19:56:59,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:57:00,017 INFO L225 Difference]: With dead ends: 46846 [2024-11-06 19:57:00,017 INFO L226 Difference]: Without dead ends: 28217 [2024-11-06 19:57:00,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:57:00,029 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 549 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:57:00,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 114 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 1628 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-06 19:57:00,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28217 states. [2024-11-06 19:57:00,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28217 to 23423. [2024-11-06 19:57:00,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23423 states, 23422 states have (on average 1.0421398684997012) internal successors, (24409), 23422 states have internal predecessors, (24409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:00,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23423 states to 23423 states and 24409 transitions. [2024-11-06 19:57:00,213 INFO L78 Accepts]: Start accepts. Automaton has 23423 states and 24409 transitions. Word has length 717 [2024-11-06 19:57:00,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:57:00,214 INFO L471 AbstractCegarLoop]: Abstraction has 23423 states and 24409 transitions. [2024-11-06 19:57:00,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:00,214 INFO L276 IsEmpty]: Start isEmpty. Operand 23423 states and 24409 transitions. [2024-11-06 19:57:00,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2024-11-06 19:57:00,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:57:00,226 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:57:00,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-06 19:57:00,226 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:57:00,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:57:00,227 INFO L85 PathProgramCache]: Analyzing trace with hash -174361675, now seen corresponding path program 1 times [2024-11-06 19:57:00,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:57:00,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544633781] [2024-11-06 19:57:00,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:57:00,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:57:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:57:00,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 712 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2024-11-06 19:57:00,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:57:00,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544633781] [2024-11-06 19:57:00,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544633781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:57:00,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:57:00,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:57:00,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789730858] [2024-11-06 19:57:00,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:57:00,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:57:00,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:57:00,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:57:00,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:57:00,516 INFO L87 Difference]: Start difference. First operand 23423 states and 24409 transitions. Second operand has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:01,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:57:01,853 INFO L93 Difference]: Finished difference Result 50423 states and 52508 transitions. [2024-11-06 19:57:01,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:57:01,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 816 [2024-11-06 19:57:01,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:57:01,879 INFO L225 Difference]: With dead ends: 50423 [2024-11-06 19:57:01,880 INFO L226 Difference]: Without dead ends: 24909 [2024-11-06 19:57:01,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:57:01,895 INFO L432 NwaCegarLoop]: 448 mSDtfsCounter, 145 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-06 19:57:01,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 474 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-06 19:57:01,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24909 states. [2024-11-06 19:57:02,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24909 to 23414. [2024-11-06 19:57:02,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23414 states, 23413 states have (on average 1.0348097210951182) internal successors, (24228), 23413 states have internal predecessors, (24228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:02,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23414 states to 23414 states and 24228 transitions. [2024-11-06 19:57:02,190 INFO L78 Accepts]: Start accepts. Automaton has 23414 states and 24228 transitions. Word has length 816 [2024-11-06 19:57:02,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:57:02,191 INFO L471 AbstractCegarLoop]: Abstraction has 23414 states and 24228 transitions. [2024-11-06 19:57:02,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:02,192 INFO L276 IsEmpty]: Start isEmpty. Operand 23414 states and 24228 transitions. [2024-11-06 19:57:02,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 821 [2024-11-06 19:57:02,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:57:02,208 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:57:02,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-06 19:57:02,208 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:57:02,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:57:02,209 INFO L85 PathProgramCache]: Analyzing trace with hash 686235991, now seen corresponding path program 1 times [2024-11-06 19:57:02,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:57:02,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107175242] [2024-11-06 19:57:02,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:57:02,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:57:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:57:02,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1325 backedges. 691 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2024-11-06 19:57:02,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:57:02,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107175242] [2024-11-06 19:57:02,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107175242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:57:02,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:57:02,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 19:57:02,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851979329] [2024-11-06 19:57:02,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:57:02,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:57:02,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:57:02,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:57:02,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:57:02,868 INFO L87 Difference]: Start difference. First operand 23414 states and 24228 transitions. Second operand has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:04,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:57:04,302 INFO L93 Difference]: Finished difference Result 53719 states and 55540 transitions. [2024-11-06 19:57:04,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:57:04,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 820 [2024-11-06 19:57:04,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:57:04,334 INFO L225 Difference]: With dead ends: 53719 [2024-11-06 19:57:04,334 INFO L226 Difference]: Without dead ends: 30008 [2024-11-06 19:57:04,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:57:04,351 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 538 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1578 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:57:04,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 117 Invalid, 1801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1578 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-06 19:57:04,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30008 states. [2024-11-06 19:57:04,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30008 to 22816. [2024-11-06 19:57:04,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22816 states, 22815 states have (on average 1.0351961428884506) internal successors, (23618), 22815 states have internal predecessors, (23618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:04,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22816 states to 22816 states and 23618 transitions. [2024-11-06 19:57:04,569 INFO L78 Accepts]: Start accepts. Automaton has 22816 states and 23618 transitions. Word has length 820 [2024-11-06 19:57:04,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:57:04,569 INFO L471 AbstractCegarLoop]: Abstraction has 22816 states and 23618 transitions. [2024-11-06 19:57:04,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:04,570 INFO L276 IsEmpty]: Start isEmpty. Operand 22816 states and 23618 transitions. [2024-11-06 19:57:04,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 860 [2024-11-06 19:57:04,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:57:04,580 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:57:04,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-06 19:57:04,581 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:57:04,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:57:04,581 INFO L85 PathProgramCache]: Analyzing trace with hash 427491627, now seen corresponding path program 1 times [2024-11-06 19:57:04,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:57:04,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660449796] [2024-11-06 19:57:04,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:57:04,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:57:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:57:05,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 753 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2024-11-06 19:57:05,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:57:05,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660449796] [2024-11-06 19:57:05,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660449796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:57:05,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:57:05,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:57:05,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509984326] [2024-11-06 19:57:05,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:57:05,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:57:05,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:57:05,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:57:05,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:57:05,039 INFO L87 Difference]: Start difference. First operand 22816 states and 23618 transitions. Second operand has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:06,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:57:06,007 INFO L93 Difference]: Finished difference Result 51336 states and 53233 transitions. [2024-11-06 19:57:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:57:06,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 859 [2024-11-06 19:57:06,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:57:06,031 INFO L225 Difference]: With dead ends: 51336 [2024-11-06 19:57:06,031 INFO L226 Difference]: Without dead ends: 28821 [2024-11-06 19:57:06,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:57:06,045 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 135 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:57:06,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 236 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 19:57:06,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28821 states. [2024-11-06 19:57:06,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28821 to 27013. [2024-11-06 19:57:06,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27013 states, 27012 states have (on average 1.0347253072708427) internal successors, (27950), 27012 states have internal predecessors, (27950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:06,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27013 states to 27013 states and 27950 transitions. [2024-11-06 19:57:06,238 INFO L78 Accepts]: Start accepts. Automaton has 27013 states and 27950 transitions. Word has length 859 [2024-11-06 19:57:06,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:57:06,239 INFO L471 AbstractCegarLoop]: Abstraction has 27013 states and 27950 transitions. [2024-11-06 19:57:06,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:06,239 INFO L276 IsEmpty]: Start isEmpty. Operand 27013 states and 27950 transitions. [2024-11-06 19:57:06,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 994 [2024-11-06 19:57:06,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:57:06,252 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:57:06,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-06 19:57:06,252 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:57:06,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:57:06,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1991616104, now seen corresponding path program 1 times [2024-11-06 19:57:06,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:57:06,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134685914] [2024-11-06 19:57:06,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:57:06,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:57:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:57:06,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1964 backedges. 752 proven. 0 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2024-11-06 19:57:06,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:57:06,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134685914] [2024-11-06 19:57:06,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134685914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:57:06,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:57:06,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 19:57:06,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28683706] [2024-11-06 19:57:06,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:57:06,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:57:06,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:57:06,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:57:06,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:57:06,819 INFO L87 Difference]: Start difference. First operand 27013 states and 27950 transitions. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:08,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:57:08,248 INFO L93 Difference]: Finished difference Result 64208 states and 66332 transitions. [2024-11-06 19:57:08,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:57:08,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 993 [2024-11-06 19:57:08,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:57:08,284 INFO L225 Difference]: With dead ends: 64208 [2024-11-06 19:57:08,285 INFO L226 Difference]: Without dead ends: 37197 [2024-11-06 19:57:08,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:57:08,302 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 575 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1592 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:57:08,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 116 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1592 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-06 19:57:08,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37197 states. [2024-11-06 19:57:08,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37197 to 29706. [2024-11-06 19:57:08,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29706 states, 29705 states have (on average 1.0337316950008415) internal successors, (30707), 29705 states have internal predecessors, (30707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:08,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29706 states to 29706 states and 30707 transitions. [2024-11-06 19:57:08,603 INFO L78 Accepts]: Start accepts. Automaton has 29706 states and 30707 transitions. Word has length 993 [2024-11-06 19:57:08,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:57:08,603 INFO L471 AbstractCegarLoop]: Abstraction has 29706 states and 30707 transitions. [2024-11-06 19:57:08,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:08,603 INFO L276 IsEmpty]: Start isEmpty. Operand 29706 states and 30707 transitions. [2024-11-06 19:57:08,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1031 [2024-11-06 19:57:08,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:57:08,617 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:57:08,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-06 19:57:08,617 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:57:08,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:57:08,617 INFO L85 PathProgramCache]: Analyzing trace with hash -375422655, now seen corresponding path program 1 times [2024-11-06 19:57:08,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:57:08,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651402290] [2024-11-06 19:57:08,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:57:08,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:57:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:57:08,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1989 backedges. 1370 proven. 0 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2024-11-06 19:57:08,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:57:08,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651402290] [2024-11-06 19:57:08,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651402290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:57:08,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:57:08,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:57:08,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102545264] [2024-11-06 19:57:08,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:57:08,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:57:08,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:57:08,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:57:08,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:57:08,986 INFO L87 Difference]: Start difference. First operand 29706 states and 30707 transitions. Second operand has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:10,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:57:10,028 INFO L93 Difference]: Finished difference Result 61502 states and 63567 transitions. [2024-11-06 19:57:10,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:57:10,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1030 [2024-11-06 19:57:10,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:57:10,062 INFO L225 Difference]: With dead ends: 61502 [2024-11-06 19:57:10,062 INFO L226 Difference]: Without dead ends: 32097 [2024-11-06 19:57:10,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:57:10,082 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 88 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:57:10,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 139 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 19:57:10,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32097 states. [2024-11-06 19:57:10,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32097 to 27911. [2024-11-06 19:57:10,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27911 states, 27910 states have (on average 1.0320315299175922) internal successors, (28804), 27910 states have internal predecessors, (28804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:10,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27911 states to 27911 states and 28804 transitions. [2024-11-06 19:57:10,370 INFO L78 Accepts]: Start accepts. Automaton has 27911 states and 28804 transitions. Word has length 1030 [2024-11-06 19:57:10,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:57:10,371 INFO L471 AbstractCegarLoop]: Abstraction has 27911 states and 28804 transitions. [2024-11-06 19:57:10,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:10,371 INFO L276 IsEmpty]: Start isEmpty. Operand 27911 states and 28804 transitions. [2024-11-06 19:57:10,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1061 [2024-11-06 19:57:10,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:57:10,383 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:57:10,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-06 19:57:10,384 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:57:10,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:57:10,384 INFO L85 PathProgramCache]: Analyzing trace with hash -312954913, now seen corresponding path program 1 times [2024-11-06 19:57:10,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:57:10,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771630616] [2024-11-06 19:57:10,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:57:10,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:57:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:57:10,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1802 backedges. 1110 proven. 0 refuted. 0 times theorem prover too weak. 692 trivial. 0 not checked. [2024-11-06 19:57:10,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:57:10,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771630616] [2024-11-06 19:57:10,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771630616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:57:10,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:57:10,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:57:10,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786452600] [2024-11-06 19:57:10,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:57:10,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:57:10,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:57:10,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:57:10,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:57:10,716 INFO L87 Difference]: Start difference. First operand 27911 states and 28804 transitions. Second operand has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:11,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:57:11,423 INFO L93 Difference]: Finished difference Result 56417 states and 58228 transitions. [2024-11-06 19:57:11,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:57:11,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1060 [2024-11-06 19:57:11,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:57:11,448 INFO L225 Difference]: With dead ends: 56417 [2024-11-06 19:57:11,448 INFO L226 Difference]: Without dead ends: 28807 [2024-11-06 19:57:11,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:57:11,464 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 312 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:57:11,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 518 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 19:57:11,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28807 states. [2024-11-06 19:57:11,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28807 to 27910. [2024-11-06 19:57:11,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27910 states, 27909 states have (on average 1.0319968468952667) internal successors, (28802), 27909 states have internal predecessors, (28802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:11,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27910 states to 27910 states and 28802 transitions. [2024-11-06 19:57:11,748 INFO L78 Accepts]: Start accepts. Automaton has 27910 states and 28802 transitions. Word has length 1060 [2024-11-06 19:57:11,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:57:11,749 INFO L471 AbstractCegarLoop]: Abstraction has 27910 states and 28802 transitions. [2024-11-06 19:57:11,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:11,749 INFO L276 IsEmpty]: Start isEmpty. Operand 27910 states and 28802 transitions. [2024-11-06 19:57:11,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1076 [2024-11-06 19:57:11,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:57:11,761 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:57:11,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-06 19:57:11,761 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:57:11,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:57:11,761 INFO L85 PathProgramCache]: Analyzing trace with hash -289523152, now seen corresponding path program 1 times [2024-11-06 19:57:11,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:57:11,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493058463] [2024-11-06 19:57:11,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:57:11,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:57:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:57:12,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2014 backedges. 1329 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2024-11-06 19:57:12,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:57:12,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493058463] [2024-11-06 19:57:12,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493058463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:57:12,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:57:12,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:57:12,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188216461] [2024-11-06 19:57:12,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:57:12,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:57:12,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:57:12,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:57:12,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:57:12,379 INFO L87 Difference]: Start difference. First operand 27910 states and 28802 transitions. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:13,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:57:13,226 INFO L93 Difference]: Finished difference Result 63320 states and 65351 transitions. [2024-11-06 19:57:13,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:57:13,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1075 [2024-11-06 19:57:13,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:57:13,328 INFO L225 Difference]: With dead ends: 63320 [2024-11-06 19:57:13,328 INFO L226 Difference]: Without dead ends: 35711 [2024-11-06 19:57:13,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:57:13,337 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 238 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 19:57:13,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 495 Invalid, 962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 19:57:13,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35711 states. [2024-11-06 19:57:13,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35711 to 33306. [2024-11-06 19:57:13,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33306 states, 33305 states have (on average 1.0315868488214983) internal successors, (34357), 33305 states have internal predecessors, (34357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:13,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33306 states to 33306 states and 34357 transitions. [2024-11-06 19:57:13,585 INFO L78 Accepts]: Start accepts. Automaton has 33306 states and 34357 transitions. Word has length 1075 [2024-11-06 19:57:13,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:57:13,585 INFO L471 AbstractCegarLoop]: Abstraction has 33306 states and 34357 transitions. [2024-11-06 19:57:13,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:13,585 INFO L276 IsEmpty]: Start isEmpty. Operand 33306 states and 34357 transitions. [2024-11-06 19:57:13,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1118 [2024-11-06 19:57:13,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:57:13,599 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:57:13,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-06 19:57:13,599 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:57:13,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:57:13,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1708477713, now seen corresponding path program 1 times [2024-11-06 19:57:13,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:57:13,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779643903] [2024-11-06 19:57:13,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:57:13,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:57:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:57:14,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2189 backedges. 1177 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-06 19:57:14,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:57:14,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779643903] [2024-11-06 19:57:14,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779643903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:57:14,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:57:14,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:57:14,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46064420] [2024-11-06 19:57:14,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:57:14,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:57:14,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:57:14,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:57:14,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:57:14,273 INFO L87 Difference]: Start difference. First operand 33306 states and 34357 transitions. Second operand has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:15,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:57:15,246 INFO L93 Difference]: Finished difference Result 71111 states and 73327 transitions. [2024-11-06 19:57:15,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:57:15,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1117 [2024-11-06 19:57:15,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:57:15,277 INFO L225 Difference]: With dead ends: 71111 [2024-11-06 19:57:15,277 INFO L226 Difference]: Without dead ends: 38106 [2024-11-06 19:57:15,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:57:15,299 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 259 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 19:57:15,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 160 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 19:57:15,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38106 states. [2024-11-06 19:57:15,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38106 to 34801. [2024-11-06 19:57:15,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34801 states, 34800 states have (on average 1.0300574712643678) internal successors, (35846), 34800 states have internal predecessors, (35846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:15,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34801 states to 34801 states and 35846 transitions. [2024-11-06 19:57:15,641 INFO L78 Accepts]: Start accepts. Automaton has 34801 states and 35846 transitions. Word has length 1117 [2024-11-06 19:57:15,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:57:15,642 INFO L471 AbstractCegarLoop]: Abstraction has 34801 states and 35846 transitions. [2024-11-06 19:57:15,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:15,642 INFO L276 IsEmpty]: Start isEmpty. Operand 34801 states and 35846 transitions. [2024-11-06 19:57:15,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1133 [2024-11-06 19:57:15,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:57:15,656 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:57:15,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-06 19:57:15,656 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:57:15,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:57:15,657 INFO L85 PathProgramCache]: Analyzing trace with hash 2018621959, now seen corresponding path program 1 times [2024-11-06 19:57:15,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:57:15,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575167370] [2024-11-06 19:57:15,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:57:15,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:57:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:57:17,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 1147 proven. 269 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-06 19:57:17,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:57:17,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575167370] [2024-11-06 19:57:17,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575167370] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:57:17,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732573900] [2024-11-06 19:57:17,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:57:17,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:57:17,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:57:17,017 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:57:17,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-06 19:57:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:57:17,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 19:57:17,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:57:18,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 1017 proven. 0 refuted. 0 times theorem prover too weak. 895 trivial. 0 not checked. [2024-11-06 19:57:18,111 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:57:18,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732573900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:57:18,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:57:18,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-06 19:57:18,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249092691] [2024-11-06 19:57:18,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:57:18,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:57:18,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:57:18,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:57:18,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:57:18,113 INFO L87 Difference]: Start difference. First operand 34801 states and 35846 transitions. Second operand has 4 states, 4 states have (on average 151.25) internal successors, (605), 4 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:19,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:57:19,979 INFO L93 Difference]: Finished difference Result 77694 states and 79987 transitions. [2024-11-06 19:57:19,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:57:19,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 151.25) internal successors, (605), 4 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1132 [2024-11-06 19:57:19,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:57:20,022 INFO L225 Difference]: With dead ends: 77694 [2024-11-06 19:57:20,022 INFO L226 Difference]: Without dead ends: 42895 [2024-11-06 19:57:20,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1135 GetRequests, 1130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:57:20,035 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 395 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1580 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 1740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 1580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-06 19:57:20,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 123 Invalid, 1740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 1580 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-06 19:57:20,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42895 states. [2024-11-06 19:57:20,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42895 to 34801. [2024-11-06 19:57:20,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34801 states, 34800 states have (on average 1.0300574712643678) internal successors, (35846), 34800 states have internal predecessors, (35846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:20,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34801 states to 34801 states and 35846 transitions. [2024-11-06 19:57:20,382 INFO L78 Accepts]: Start accepts. Automaton has 34801 states and 35846 transitions. Word has length 1132 [2024-11-06 19:57:20,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:57:20,383 INFO L471 AbstractCegarLoop]: Abstraction has 34801 states and 35846 transitions. [2024-11-06 19:57:20,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 151.25) internal successors, (605), 4 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:20,383 INFO L276 IsEmpty]: Start isEmpty. Operand 34801 states and 35846 transitions. [2024-11-06 19:57:20,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1170 [2024-11-06 19:57:20,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:57:20,398 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:57:20,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-06 19:57:20,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-06 19:57:20,598 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:57:20,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:57:20,599 INFO L85 PathProgramCache]: Analyzing trace with hash 395044658, now seen corresponding path program 1 times [2024-11-06 19:57:20,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:57:20,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572453780] [2024-11-06 19:57:20,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:57:20,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:57:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:57:21,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2023 backedges. 1351 proven. 192 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-06 19:57:21,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:57:21,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572453780] [2024-11-06 19:57:21,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572453780] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:57:21,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16906638] [2024-11-06 19:57:21,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:57:21,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:57:21,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:57:21,738 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:57:21,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 19:57:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:57:22,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 1326 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 19:57:22,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:57:22,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2023 backedges. 1054 proven. 0 refuted. 0 times theorem prover too weak. 969 trivial. 0 not checked. [2024-11-06 19:57:22,627 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:57:22,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16906638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:57:22,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:57:22,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-06 19:57:22,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223391305] [2024-11-06 19:57:22,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:57:22,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:57:22,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:57:22,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:57:22,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:57:22,629 INFO L87 Difference]: Start difference. First operand 34801 states and 35846 transitions. Second operand has 4 states, 4 states have (on average 151.25) internal successors, (605), 4 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:23,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:57:23,804 INFO L93 Difference]: Finished difference Result 53090 states and 54529 transitions. [2024-11-06 19:57:23,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:57:23,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 151.25) internal successors, (605), 4 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1169 [2024-11-06 19:57:23,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:57:23,806 INFO L225 Difference]: With dead ends: 53090 [2024-11-06 19:57:23,806 INFO L226 Difference]: Without dead ends: 0 [2024-11-06 19:57:23,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1173 GetRequests, 1168 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:57:23,823 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 344 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1100 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-06 19:57:23,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 54 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1100 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-06 19:57:23,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-06 19:57:23,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-06 19:57:23,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:23,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-06 19:57:23,825 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1169 [2024-11-06 19:57:23,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:57:23,825 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-06 19:57:23,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 151.25) internal successors, (605), 4 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:57:23,829 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-06 19:57:23,830 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-06 19:57:23,832 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 19:57:23,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-06 19:57:24,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:57:24,039 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:57:24,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.