./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem16_label40.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/Problem16_label40.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', '96878197f4120fe0a946400d7cd6a9f9a0d5774764bf69134c6af6a4800daf81'] 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/Problem16_label40.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 96878197f4120fe0a946400d7cd6a9f9a0d5774764bf69134c6af6a4800daf81 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 20:02:18,312 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 20:02:18,403 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 20:02:18,408 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 20:02:18,408 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 20:02:18,431 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 20:02:18,432 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 20:02:18,432 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 20:02:18,432 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 20:02:18,432 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 20:02:18,432 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 20:02:18,432 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 20:02:18,433 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 20:02:18,433 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 20:02:18,433 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 20:02:18,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 20:02:18,435 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 20:02:18,435 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 20:02:18,436 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 20:02:18,436 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 20:02:18,436 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 20:02:18,436 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 20:02:18,437 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 20:02:18,437 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 20:02:18,437 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 20:02:18,438 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 20:02:18,438 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 20:02:18,438 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 20:02:18,438 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 20:02:18,438 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 20:02:18,438 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 20:02:18,438 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 20:02:18,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 20:02:18,438 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 20:02:18,439 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 20:02:18,439 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 20:02:18,439 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 20:02:18,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 20:02:18,439 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 20:02:18,439 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 20:02:18,439 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 20:02:18,440 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 20:02:18,440 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 -> 96878197f4120fe0a946400d7cd6a9f9a0d5774764bf69134c6af6a4800daf81 [2024-11-06 20:02:18,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 20:02:18,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 20:02:18,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 20:02:18,751 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 20:02:18,752 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 20:02:18,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label40.c [2024-11-06 20:02:20,026 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 20:02:20,465 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 20:02:20,466 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label40.c [2024-11-06 20:02:20,490 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c14a82a47/97b541406462407fb879bcb58a9da0fc/FLAGacb0dd8c6 [2024-11-06 20:02:20,508 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c14a82a47/97b541406462407fb879bcb58a9da0fc [2024-11-06 20:02:20,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 20:02:20,513 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 20:02:20,514 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 20:02:20,515 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 20:02:20,519 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 20:02:20,519 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:02:20" (1/1) ... [2024-11-06 20:02:20,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@228769c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:20, skipping insertion in model container [2024-11-06 20:02:20,521 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:02:20" (1/1) ... [2024-11-06 20:02:20,572 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 20:02:20,755 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/Problem16_label40.c[6583,6596] [2024-11-06 20:02:21,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 20:02:21,064 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 20:02:21,090 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/Problem16_label40.c[6583,6596] [2024-11-06 20:02:21,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 20:02:21,229 INFO L204 MainTranslator]: Completed translation [2024-11-06 20:02:21,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:21 WrapperNode [2024-11-06 20:02:21,231 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 20:02:21,232 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 20:02:21,232 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 20:02:21,232 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 20:02:21,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:21" (1/1) ... [2024-11-06 20:02:21,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:21" (1/1) ... [2024-11-06 20:02:21,409 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1770 [2024-11-06 20:02:21,410 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 20:02:21,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 20:02:21,411 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 20:02:21,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 20:02:21,419 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:21" (1/1) ... [2024-11-06 20:02:21,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:21" (1/1) ... [2024-11-06 20:02:21,440 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:21" (1/1) ... [2024-11-06 20:02:21,495 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 20:02:21,498 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:21" (1/1) ... [2024-11-06 20:02:21,498 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:21" (1/1) ... [2024-11-06 20:02:21,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:21" (1/1) ... [2024-11-06 20:02:21,591 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:21" (1/1) ... [2024-11-06 20:02:21,608 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:21" (1/1) ... [2024-11-06 20:02:21,621 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:21" (1/1) ... [2024-11-06 20:02:21,637 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 20:02:21,638 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 20:02:21,638 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 20:02:21,639 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 20:02:21,640 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:21" (1/1) ... [2024-11-06 20:02:21,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 20:02:21,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:02:21,677 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 20:02:21,681 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 20:02:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 20:02:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 20:02:21,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 20:02:21,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 20:02:21,777 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 20:02:21,779 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 20:02:23,812 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-11-06 20:02:23,812 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 20:02:23,838 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 20:02:23,838 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 20:02:23,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:02:23 BoogieIcfgContainer [2024-11-06 20:02:23,839 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 20:02:23,842 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 20:02:23,842 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 20:02:23,847 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 20:02:23,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:02:20" (1/3) ... [2024-11-06 20:02:23,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343a9d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:02:23, skipping insertion in model container [2024-11-06 20:02:23,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:21" (2/3) ... [2024-11-06 20:02:23,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343a9d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:02:23, skipping insertion in model container [2024-11-06 20:02:23,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:02:23" (3/3) ... [2024-11-06 20:02:23,849 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label40.c [2024-11-06 20:02:23,862 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 20:02:23,862 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 20:02:23,930 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 20:02:23,943 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;@6b9cb743, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 20:02:23,943 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 20:02:23,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 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 20:02:23,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-06 20:02:23,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:23,959 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:02:23,960 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:23,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:23,965 INFO L85 PathProgramCache]: Analyzing trace with hash -696204111, now seen corresponding path program 1 times [2024-11-06 20:02:23,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:23,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781708110] [2024-11-06 20:02:23,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:23,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:24,376 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 20:02:24,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:24,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781708110] [2024-11-06 20:02:24,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781708110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:24,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:24,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 20:02:24,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806167056] [2024-11-06 20:02:24,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:24,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:24,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:24,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:24,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:24,408 INFO L87 Difference]: Start difference. First operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 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 21.0) internal successors, (63), 2 states have internal predecessors, (63), 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 20:02:25,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:25,906 INFO L93 Difference]: Finished difference Result 1122 states and 2103 transitions. [2024-11-06 20:02:25,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:25,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 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 63 [2024-11-06 20:02:25,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:25,920 INFO L225 Difference]: With dead ends: 1122 [2024-11-06 20:02:25,921 INFO L226 Difference]: Without dead ends: 662 [2024-11-06 20:02:25,926 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 20:02:25,928 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 297 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:25,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 223 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-06 20:02:25,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-06 20:02:25,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2024-11-06 20:02:25,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.5824508320726172) internal successors, (1046), 661 states have internal predecessors, (1046), 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 20:02:25,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1046 transitions. [2024-11-06 20:02:26,000 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1046 transitions. Word has length 63 [2024-11-06 20:02:26,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:26,000 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 1046 transitions. [2024-11-06 20:02:26,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 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 20:02:26,002 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1046 transitions. [2024-11-06 20:02:26,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-06 20:02:26,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:26,006 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, 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] [2024-11-06 20:02:26,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 20:02:26,007 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:26,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:26,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1825534533, now seen corresponding path program 1 times [2024-11-06 20:02:26,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:26,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687608981] [2024-11-06 20:02:26,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:26,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:26,266 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 20:02:26,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:26,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687608981] [2024-11-06 20:02:26,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687608981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:26,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:26,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 20:02:26,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281990206] [2024-11-06 20:02:26,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:26,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:26,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:26,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:26,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:26,269 INFO L87 Difference]: Start difference. First operand 662 states and 1046 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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 20:02:27,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:27,398 INFO L93 Difference]: Finished difference Result 1651 states and 2539 transitions. [2024-11-06 20:02:27,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:27,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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 134 [2024-11-06 20:02:27,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:27,402 INFO L225 Difference]: With dead ends: 1651 [2024-11-06 20:02:27,402 INFO L226 Difference]: Without dead ends: 991 [2024-11-06 20:02:27,404 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 20:02:27,405 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 338 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:27,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 77 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-06 20:02:27,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2024-11-06 20:02:27,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 991. [2024-11-06 20:02:27,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 990 states have (on average 1.3767676767676769) internal successors, (1363), 990 states have internal predecessors, (1363), 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 20:02:27,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1363 transitions. [2024-11-06 20:02:27,436 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1363 transitions. Word has length 134 [2024-11-06 20:02:27,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:27,436 INFO L471 AbstractCegarLoop]: Abstraction has 991 states and 1363 transitions. [2024-11-06 20:02:27,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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 20:02:27,437 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1363 transitions. [2024-11-06 20:02:27,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-06 20:02:27,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:27,440 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, 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] [2024-11-06 20:02:27,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 20:02:27,441 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:27,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:27,442 INFO L85 PathProgramCache]: Analyzing trace with hash -642916736, now seen corresponding path program 1 times [2024-11-06 20:02:27,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:27,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654972350] [2024-11-06 20:02:27,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:27,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:27,620 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 20:02:27,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:27,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654972350] [2024-11-06 20:02:27,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654972350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:27,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:27,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 20:02:27,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135677751] [2024-11-06 20:02:27,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:27,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:27,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:27,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:27,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:27,622 INFO L87 Difference]: Start difference. First operand 991 states and 1363 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 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 20:02:28,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:28,943 INFO L93 Difference]: Finished difference Result 2967 states and 4084 transitions. [2024-11-06 20:02:28,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:28,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 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 135 [2024-11-06 20:02:28,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:28,951 INFO L225 Difference]: With dead ends: 2967 [2024-11-06 20:02:28,951 INFO L226 Difference]: Without dead ends: 1978 [2024-11-06 20:02:28,953 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 20:02:28,954 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 289 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:28,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 209 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-06 20:02:28,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2024-11-06 20:02:28,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1978. [2024-11-06 20:02:28,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1977 states have (on average 1.2468386444107233) internal successors, (2465), 1977 states have internal predecessors, (2465), 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 20:02:28,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2465 transitions. [2024-11-06 20:02:29,000 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2465 transitions. Word has length 135 [2024-11-06 20:02:29,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:29,001 INFO L471 AbstractCegarLoop]: Abstraction has 1978 states and 2465 transitions. [2024-11-06 20:02:29,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 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 20:02:29,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2465 transitions. [2024-11-06 20:02:29,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-06 20:02:29,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:29,008 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, 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] [2024-11-06 20:02:29,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 20:02:29,009 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:29,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:29,009 INFO L85 PathProgramCache]: Analyzing trace with hash -2022847261, now seen corresponding path program 1 times [2024-11-06 20:02:29,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:29,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789604503] [2024-11-06 20:02:29,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:29,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:29,183 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 20:02:29,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:29,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789604503] [2024-11-06 20:02:29,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789604503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:29,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:29,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:02:29,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058828395] [2024-11-06 20:02:29,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:29,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:29,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:29,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:29,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:29,187 INFO L87 Difference]: Start difference. First operand 1978 states and 2465 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 20:02:30,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:30,416 INFO L93 Difference]: Finished difference Result 4612 states and 5852 transitions. [2024-11-06 20:02:30,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:30,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 150 [2024-11-06 20:02:30,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:30,428 INFO L225 Difference]: With dead ends: 4612 [2024-11-06 20:02:30,428 INFO L226 Difference]: Without dead ends: 2636 [2024-11-06 20:02:30,431 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 20:02:30,434 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 321 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:30,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 539 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-06 20:02:30,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2024-11-06 20:02:30,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636. [2024-11-06 20:02:30,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2635 states have (on average 1.21707779886148) internal successors, (3207), 2635 states have internal predecessors, (3207), 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 20:02:30,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 3207 transitions. [2024-11-06 20:02:30,500 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 3207 transitions. Word has length 150 [2024-11-06 20:02:30,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:30,501 INFO L471 AbstractCegarLoop]: Abstraction has 2636 states and 3207 transitions. [2024-11-06 20:02:30,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 20:02:30,501 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 3207 transitions. [2024-11-06 20:02:30,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-06 20:02:30,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:30,506 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, 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, 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] [2024-11-06 20:02:30,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 20:02:30,506 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:30,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:30,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1269062465, now seen corresponding path program 1 times [2024-11-06 20:02:30,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:30,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888105794] [2024-11-06 20:02:30,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:30,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:30,797 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 286 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-06 20:02:30,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:30,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888105794] [2024-11-06 20:02:30,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888105794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:30,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:30,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 20:02:30,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509152676] [2024-11-06 20:02:30,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:30,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:30,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:30,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:30,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:30,800 INFO L87 Difference]: Start difference. First operand 2636 states and 3207 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 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 20:02:32,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:32,085 INFO L93 Difference]: Finished difference Result 6586 states and 8078 transitions. [2024-11-06 20:02:32,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:32,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 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 335 [2024-11-06 20:02:32,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:32,099 INFO L225 Difference]: With dead ends: 6586 [2024-11-06 20:02:32,099 INFO L226 Difference]: Without dead ends: 3294 [2024-11-06 20:02:32,104 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 20:02:32,105 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 358 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:32,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 156 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-06 20:02:32,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2024-11-06 20:02:32,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 3294. [2024-11-06 20:02:32,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3294 states, 3293 states have (on average 1.0652900091102337) internal successors, (3508), 3293 states have internal predecessors, (3508), 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 20:02:32,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3294 states to 3294 states and 3508 transitions. [2024-11-06 20:02:32,181 INFO L78 Accepts]: Start accepts. Automaton has 3294 states and 3508 transitions. Word has length 335 [2024-11-06 20:02:32,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:32,182 INFO L471 AbstractCegarLoop]: Abstraction has 3294 states and 3508 transitions. [2024-11-06 20:02:32,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 2 states have internal predecessors, (198), 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 20:02:32,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3294 states and 3508 transitions. [2024-11-06 20:02:32,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2024-11-06 20:02:32,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:32,197 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, 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, 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] [2024-11-06 20:02:32,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 20:02:32,198 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:32,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:32,198 INFO L85 PathProgramCache]: Analyzing trace with hash 315077949, now seen corresponding path program 1 times [2024-11-06 20:02:32,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:32,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955718686] [2024-11-06 20:02:32,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:32,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:32,723 INFO L134 CoverageAnalysis]: Checked inductivity of 851 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2024-11-06 20:02:32,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:32,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955718686] [2024-11-06 20:02:32,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955718686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:32,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:32,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 20:02:32,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649904020] [2024-11-06 20:02:32,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:32,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:32,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:32,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:32,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:32,727 INFO L87 Difference]: Start difference. First operand 3294 states and 3508 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 2 states have internal predecessors, (226), 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 20:02:33,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:33,640 INFO L93 Difference]: Finished difference Result 9549 states and 10185 transitions. [2024-11-06 20:02:33,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:33,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 2 states have internal predecessors, (226), 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 501 [2024-11-06 20:02:33,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:33,659 INFO L225 Difference]: With dead ends: 9549 [2024-11-06 20:02:33,659 INFO L226 Difference]: Without dead ends: 6257 [2024-11-06 20:02:33,664 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 20:02:33,665 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 240 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:33,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 71 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 20:02:33,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6257 states. [2024-11-06 20:02:33,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6257 to 6255. [2024-11-06 20:02:33,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6255 states, 6254 states have (on average 1.0606012152222577) internal successors, (6633), 6254 states have internal predecessors, (6633), 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 20:02:33,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6255 states to 6255 states and 6633 transitions. [2024-11-06 20:02:33,779 INFO L78 Accepts]: Start accepts. Automaton has 6255 states and 6633 transitions. Word has length 501 [2024-11-06 20:02:33,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:33,781 INFO L471 AbstractCegarLoop]: Abstraction has 6255 states and 6633 transitions. [2024-11-06 20:02:33,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 2 states have internal predecessors, (226), 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 20:02:33,781 INFO L276 IsEmpty]: Start isEmpty. Operand 6255 states and 6633 transitions. [2024-11-06 20:02:33,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2024-11-06 20:02:33,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:33,793 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, 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, 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] [2024-11-06 20:02:33,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 20:02:33,793 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:33,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:33,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1452955206, now seen corresponding path program 1 times [2024-11-06 20:02:33,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:33,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23477888] [2024-11-06 20:02:33,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:33,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:34,585 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-11-06 20:02:34,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:34,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23477888] [2024-11-06 20:02:34,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23477888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:34,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:34,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:02:34,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932633294] [2024-11-06 20:02:34,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:34,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:02:34,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:34,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:02:34,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:02:34,589 INFO L87 Difference]: Start difference. First operand 6255 states and 6633 transitions. Second operand has 4 states, 4 states have (on average 90.0) internal successors, (360), 3 states have internal predecessors, (360), 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 20:02:35,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:35,661 INFO L93 Difference]: Finished difference Result 12179 states and 12932 transitions. [2024-11-06 20:02:35,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 20:02:35,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 3 states have internal predecessors, (360), 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 525 [2024-11-06 20:02:35,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:35,681 INFO L225 Difference]: With dead ends: 12179 [2024-11-06 20:02:35,681 INFO L226 Difference]: Without dead ends: 6255 [2024-11-06 20:02:35,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 20:02:35,689 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 127 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:35,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 126 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-06 20:02:35,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6255 states. [2024-11-06 20:02:35,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6255 to 6255. [2024-11-06 20:02:35,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6255 states, 6254 states have (on average 1.0604413175567637) internal successors, (6632), 6254 states have internal predecessors, (6632), 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 20:02:35,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6255 states to 6255 states and 6632 transitions. [2024-11-06 20:02:35,807 INFO L78 Accepts]: Start accepts. Automaton has 6255 states and 6632 transitions. Word has length 525 [2024-11-06 20:02:35,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:35,808 INFO L471 AbstractCegarLoop]: Abstraction has 6255 states and 6632 transitions. [2024-11-06 20:02:35,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 3 states have internal predecessors, (360), 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 20:02:35,809 INFO L276 IsEmpty]: Start isEmpty. Operand 6255 states and 6632 transitions. [2024-11-06 20:02:35,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2024-11-06 20:02:35,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:35,821 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, 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, 3, 3, 3, 3, 3, 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] [2024-11-06 20:02:35,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 20:02:35,822 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:35,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:35,822 INFO L85 PathProgramCache]: Analyzing trace with hash 590277590, now seen corresponding path program 1 times [2024-11-06 20:02:35,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:35,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472648495] [2024-11-06 20:02:35,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:35,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:36,289 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 720 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2024-11-06 20:02:36,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:36,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472648495] [2024-11-06 20:02:36,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472648495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:36,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:36,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:02:36,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899467892] [2024-11-06 20:02:36,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:36,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:36,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:36,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:36,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:36,293 INFO L87 Difference]: Start difference. First operand 6255 states and 6632 transitions. Second operand has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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 20:02:37,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:37,253 INFO L93 Difference]: Finished difference Result 15140 states and 16162 transitions. [2024-11-06 20:02:37,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:37,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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 640 [2024-11-06 20:02:37,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:37,279 INFO L225 Difference]: With dead ends: 15140 [2024-11-06 20:02:37,279 INFO L226 Difference]: Without dead ends: 9216 [2024-11-06 20:02:37,283 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 20:02:37,284 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 219 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:37,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 426 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 20:02:37,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9216 states. [2024-11-06 20:02:37,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9216 to 8887. [2024-11-06 20:02:37,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8887 states, 8886 states have (on average 1.0481656538374973) internal successors, (9314), 8886 states have internal predecessors, (9314), 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 20:02:37,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8887 states to 8887 states and 9314 transitions. [2024-11-06 20:02:37,387 INFO L78 Accepts]: Start accepts. Automaton has 8887 states and 9314 transitions. Word has length 640 [2024-11-06 20:02:37,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:37,388 INFO L471 AbstractCegarLoop]: Abstraction has 8887 states and 9314 transitions. [2024-11-06 20:02:37,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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 20:02:37,389 INFO L276 IsEmpty]: Start isEmpty. Operand 8887 states and 9314 transitions. [2024-11-06 20:02:37,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2024-11-06 20:02:37,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:37,398 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:02:37,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 20:02:37,399 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:37,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:37,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1262186544, now seen corresponding path program 1 times [2024-11-06 20:02:37,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:37,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755978185] [2024-11-06 20:02:37,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:37,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:37,784 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 769 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-11-06 20:02:37,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:37,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755978185] [2024-11-06 20:02:37,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755978185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:37,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:37,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:02:37,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586587202] [2024-11-06 20:02:37,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:37,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:37,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:37,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:37,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:37,792 INFO L87 Difference]: Start difference. First operand 8887 states and 9314 transitions. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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 20:02:38,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:38,724 INFO L93 Difference]: Finished difference Result 20404 states and 21512 transitions. [2024-11-06 20:02:38,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:38,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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 703 [2024-11-06 20:02:38,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:38,743 INFO L225 Difference]: With dead ends: 20404 [2024-11-06 20:02:38,743 INFO L226 Difference]: Without dead ends: 11848 [2024-11-06 20:02:38,752 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 20:02:38,753 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 186 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:38,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 55 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 20:02:38,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11848 states. [2024-11-06 20:02:38,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11848 to 11848. [2024-11-06 20:02:38,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11848 states, 11847 states have (on average 1.0506457330969865) internal successors, (12447), 11847 states have internal predecessors, (12447), 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 20:02:38,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11848 states to 11848 states and 12447 transitions. [2024-11-06 20:02:38,941 INFO L78 Accepts]: Start accepts. Automaton has 11848 states and 12447 transitions. Word has length 703 [2024-11-06 20:02:38,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:38,942 INFO L471 AbstractCegarLoop]: Abstraction has 11848 states and 12447 transitions. [2024-11-06 20:02:38,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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 20:02:38,943 INFO L276 IsEmpty]: Start isEmpty. Operand 11848 states and 12447 transitions. [2024-11-06 20:02:38,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 994 [2024-11-06 20:02:38,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:38,969 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 20:02:38,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-06 20:02:38,969 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:38,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:38,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1525801733, now seen corresponding path program 1 times [2024-11-06 20:02:38,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:38,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081376997] [2024-11-06 20:02:38,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:38,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:40,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2043 backedges. 1017 proven. 0 refuted. 0 times theorem prover too weak. 1026 trivial. 0 not checked. [2024-11-06 20:02:40,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:40,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081376997] [2024-11-06 20:02:40,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081376997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:40,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:40,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 20:02:40,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935906227] [2024-11-06 20:02:40,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:40,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:40,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:40,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:40,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:40,015 INFO L87 Difference]: Start difference. First operand 11848 states and 12447 transitions. Second operand has 3 states, 3 states have (on average 131.0) internal successors, (393), 2 states have internal predecessors, (393), 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 20:02:40,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:40,790 INFO L93 Difference]: Finished difference Result 23694 states and 24898 transitions. [2024-11-06 20:02:40,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:40,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 2 states have internal predecessors, (393), 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 20:02:40,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:40,810 INFO L225 Difference]: With dead ends: 23694 [2024-11-06 20:02:40,811 INFO L226 Difference]: Without dead ends: 12177 [2024-11-06 20:02:40,821 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 20:02:40,822 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 85 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:40,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 102 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:02:40,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12177 states. [2024-11-06 20:02:40,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12177 to 12177. [2024-11-06 20:02:40,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12177 states, 12176 states have (on average 1.0498521681997373) internal successors, (12783), 12176 states have internal predecessors, (12783), 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 20:02:40,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12177 states to 12177 states and 12783 transitions. [2024-11-06 20:02:40,942 INFO L78 Accepts]: Start accepts. Automaton has 12177 states and 12783 transitions. Word has length 993 [2024-11-06 20:02:40,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:40,943 INFO L471 AbstractCegarLoop]: Abstraction has 12177 states and 12783 transitions. [2024-11-06 20:02:40,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 2 states have internal predecessors, (393), 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 20:02:40,944 INFO L276 IsEmpty]: Start isEmpty. Operand 12177 states and 12783 transitions. [2024-11-06 20:02:40,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1002 [2024-11-06 20:02:40,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:40,961 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 20:02:40,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-06 20:02:40,962 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:40,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:40,963 INFO L85 PathProgramCache]: Analyzing trace with hash 547079911, now seen corresponding path program 1 times [2024-11-06 20:02:40,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:40,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447128422] [2024-11-06 20:02:40,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:40,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:41,644 INFO L134 CoverageAnalysis]: Checked inductivity of 2051 backedges. 1450 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2024-11-06 20:02:41,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:41,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447128422] [2024-11-06 20:02:41,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447128422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:41,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:41,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:02:41,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186345812] [2024-11-06 20:02:41,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:41,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:41,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:41,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:41,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:41,647 INFO L87 Difference]: Start difference. First operand 12177 states and 12783 transitions. Second operand has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 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 20:02:42,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:42,464 INFO L93 Difference]: Finished difference Result 26655 states and 28127 transitions. [2024-11-06 20:02:42,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:42,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 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 1001 [2024-11-06 20:02:42,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:42,489 INFO L225 Difference]: With dead ends: 26655 [2024-11-06 20:02:42,489 INFO L226 Difference]: Without dead ends: 15138 [2024-11-06 20:02:42,504 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 20:02:42,505 INFO L432 NwaCegarLoop]: 428 mSDtfsCounter, 192 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:42,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 434 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:02:42,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15138 states. [2024-11-06 20:02:42,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15138 to 14480. [2024-11-06 20:02:42,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14480 states, 14479 states have (on average 1.046135782857932) internal successors, (15147), 14479 states have internal predecessors, (15147), 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 20:02:42,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14480 states to 14480 states and 15147 transitions. [2024-11-06 20:02:42,690 INFO L78 Accepts]: Start accepts. Automaton has 14480 states and 15147 transitions. Word has length 1001 [2024-11-06 20:02:42,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:42,691 INFO L471 AbstractCegarLoop]: Abstraction has 14480 states and 15147 transitions. [2024-11-06 20:02:42,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 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 20:02:42,691 INFO L276 IsEmpty]: Start isEmpty. Operand 14480 states and 15147 transitions. [2024-11-06 20:02:42,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1012 [2024-11-06 20:02:42,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:42,707 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-06 20:02:42,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-06 20:02:42,708 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:42,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:42,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1559765063, now seen corresponding path program 1 times [2024-11-06 20:02:42,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:42,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712925160] [2024-11-06 20:02:42,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:42,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:43,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1544 backedges. 558 proven. 734 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2024-11-06 20:02:43,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:43,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712925160] [2024-11-06 20:02:43,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712925160] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:02:43,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109412058] [2024-11-06 20:02:43,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:43,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:02:43,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:02:43,876 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 20:02:43,878 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 20:02:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:44,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 20:02:44,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:02:44,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1544 backedges. 860 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-06 20:02:44,702 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:02:44,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109412058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:44,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 20:02:44,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-06 20:02:44,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205989462] [2024-11-06 20:02:44,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:44,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:44,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:44,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:44,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 20:02:44,705 INFO L87 Difference]: Start difference. First operand 14480 states and 15147 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 20:02:45,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:45,470 INFO L93 Difference]: Finished difference Result 28300 states and 29625 transitions. [2024-11-06 20:02:45,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:45,471 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 1011 [2024-11-06 20:02:45,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:45,488 INFO L225 Difference]: With dead ends: 28300 [2024-11-06 20:02:45,488 INFO L226 Difference]: Without dead ends: 14480 [2024-11-06 20:02:45,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1015 GetRequests, 1011 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 20:02:45,498 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 95 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:45,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 377 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:02:45,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14480 states. [2024-11-06 20:02:45,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14480 to 14480. [2024-11-06 20:02:45,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14480 states, 14479 states have (on average 1.0414393259202983) internal successors, (15079), 14479 states have internal predecessors, (15079), 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 20:02:45,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14480 states to 14480 states and 15079 transitions. [2024-11-06 20:02:45,691 INFO L78 Accepts]: Start accepts. Automaton has 14480 states and 15079 transitions. Word has length 1011 [2024-11-06 20:02:45,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:45,692 INFO L471 AbstractCegarLoop]: Abstraction has 14480 states and 15079 transitions. [2024-11-06 20:02:45,693 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 20:02:45,693 INFO L276 IsEmpty]: Start isEmpty. Operand 14480 states and 15079 transitions. [2024-11-06 20:02:45,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1148 [2024-11-06 20:02:45,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:45,722 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:02:45,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-06 20:02:45,923 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,SelfDestructingSolverStorable11 [2024-11-06 20:02:45,924 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:45,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:45,925 INFO L85 PathProgramCache]: Analyzing trace with hash -935061708, now seen corresponding path program 1 times [2024-11-06 20:02:45,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:45,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086770533] [2024-11-06 20:02:45,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:45,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:46,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2638 backedges. 1842 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2024-11-06 20:02:46,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:46,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086770533] [2024-11-06 20:02:46,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086770533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:46,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:46,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:02:46,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857660406] [2024-11-06 20:02:46,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:46,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:46,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:46,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:46,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:46,618 INFO L87 Difference]: Start difference. First operand 14480 states and 15079 transitions. Second operand has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 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 20:02:47,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:47,472 INFO L93 Difference]: Finished difference Result 28300 states and 29489 transitions. [2024-11-06 20:02:47,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:47,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 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 1147 [2024-11-06 20:02:47,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:47,488 INFO L225 Difference]: With dead ends: 28300 [2024-11-06 20:02:47,488 INFO L226 Difference]: Without dead ends: 14480 [2024-11-06 20:02:47,498 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 20:02:47,498 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 220 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:47,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 429 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 20:02:47,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14480 states. [2024-11-06 20:02:47,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14480 to 13493. [2024-11-06 20:02:47,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13493 states, 13492 states have (on average 1.0286095463978655) internal successors, (13878), 13492 states have internal predecessors, (13878), 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 20:02:47,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13493 states to 13493 states and 13878 transitions. [2024-11-06 20:02:47,630 INFO L78 Accepts]: Start accepts. Automaton has 13493 states and 13878 transitions. Word has length 1147 [2024-11-06 20:02:47,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:47,630 INFO L471 AbstractCegarLoop]: Abstraction has 13493 states and 13878 transitions. [2024-11-06 20:02:47,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 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 20:02:47,631 INFO L276 IsEmpty]: Start isEmpty. Operand 13493 states and 13878 transitions. [2024-11-06 20:02:47,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1149 [2024-11-06 20:02:47,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:47,648 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:02:47,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-06 20:02:47,649 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:47,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:47,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1181890491, now seen corresponding path program 1 times [2024-11-06 20:02:47,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:47,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287617686] [2024-11-06 20:02:47,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:47,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:48,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2644 backedges. 831 proven. 0 refuted. 0 times theorem prover too weak. 1813 trivial. 0 not checked. [2024-11-06 20:02:48,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:48,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287617686] [2024-11-06 20:02:48,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287617686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:48,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:48,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:02:48,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957525364] [2024-11-06 20:02:48,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:48,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:48,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:48,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:48,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:48,289 INFO L87 Difference]: Start difference. First operand 13493 states and 13878 transitions. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 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 20:02:48,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:48,935 INFO L93 Difference]: Finished difference Result 28958 states and 29852 transitions. [2024-11-06 20:02:48,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:48,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 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 1148 [2024-11-06 20:02:48,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:48,946 INFO L225 Difference]: With dead ends: 28958 [2024-11-06 20:02:48,946 INFO L226 Difference]: Without dead ends: 14480 [2024-11-06 20:02:48,953 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 20:02:48,954 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 273 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:48,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 412 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 20:02:48,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14480 states. [2024-11-06 20:02:49,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14480 to 12177. [2024-11-06 20:02:49,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12177 states, 12176 states have (on average 1.0271846254927726) internal successors, (12507), 12176 states have internal predecessors, (12507), 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 20:02:49,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12177 states to 12177 states and 12507 transitions. [2024-11-06 20:02:49,063 INFO L78 Accepts]: Start accepts. Automaton has 12177 states and 12507 transitions. Word has length 1148 [2024-11-06 20:02:49,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:49,063 INFO L471 AbstractCegarLoop]: Abstraction has 12177 states and 12507 transitions. [2024-11-06 20:02:49,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 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 20:02:49,064 INFO L276 IsEmpty]: Start isEmpty. Operand 12177 states and 12507 transitions. [2024-11-06 20:02:49,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1291 [2024-11-06 20:02:49,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:49,083 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:02:49,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-06 20:02:49,083 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:49,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:49,084 INFO L85 PathProgramCache]: Analyzing trace with hash 152336790, now seen corresponding path program 1 times [2024-11-06 20:02:49,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:49,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454569160] [2024-11-06 20:02:49,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:49,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:50,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2828 backedges. 2015 proven. 0 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2024-11-06 20:02:50,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:50,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454569160] [2024-11-06 20:02:50,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454569160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:50,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:50,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 20:02:50,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048736713] [2024-11-06 20:02:50,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:50,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:02:50,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:50,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:02:50,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:02:50,463 INFO L87 Difference]: Start difference. First operand 12177 states and 12507 transitions. Second operand has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 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 20:02:51,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:51,293 INFO L93 Difference]: Finished difference Result 23703 states and 24354 transitions. [2024-11-06 20:02:51,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 20:02:51,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 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 1290 [2024-11-06 20:02:51,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:51,306 INFO L225 Difference]: With dead ends: 23703 [2024-11-06 20:02:51,306 INFO L226 Difference]: Without dead ends: 12186 [2024-11-06 20:02:51,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 20:02:51,315 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 217 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:51,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 436 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 20:02:51,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12186 states. [2024-11-06 20:02:51,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12186 to 12177. [2024-11-06 20:02:51,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12177 states, 12176 states have (on average 1.0270203679369252) internal successors, (12505), 12176 states have internal predecessors, (12505), 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 20:02:51,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12177 states to 12177 states and 12505 transitions. [2024-11-06 20:02:51,417 INFO L78 Accepts]: Start accepts. Automaton has 12177 states and 12505 transitions. Word has length 1290 [2024-11-06 20:02:51,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:51,418 INFO L471 AbstractCegarLoop]: Abstraction has 12177 states and 12505 transitions. [2024-11-06 20:02:51,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 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 20:02:51,418 INFO L276 IsEmpty]: Start isEmpty. Operand 12177 states and 12505 transitions. [2024-11-06 20:02:51,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1306 [2024-11-06 20:02:51,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:51,430 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:02:51,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-06 20:02:51,430 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:51,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:51,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1605891050, now seen corresponding path program 1 times [2024-11-06 20:02:51,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:51,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272238584] [2024-11-06 20:02:51,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:51,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:52,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3669 backedges. 2182 proven. 0 refuted. 0 times theorem prover too weak. 1487 trivial. 0 not checked. [2024-11-06 20:02:52,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:52,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272238584] [2024-11-06 20:02:52,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272238584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:52,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:52,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:02:52,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448284536] [2024-11-06 20:02:52,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:52,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:52,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:52,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:52,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:52,420 INFO L87 Difference]: Start difference. First operand 12177 states and 12505 transitions. Second operand has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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 20:02:53,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:53,029 INFO L93 Difference]: Finished difference Result 24352 states and 25010 transitions. [2024-11-06 20:02:53,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:53,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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 1305 [2024-11-06 20:02:53,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:53,038 INFO L225 Difference]: With dead ends: 24352 [2024-11-06 20:02:53,038 INFO L226 Difference]: Without dead ends: 12835 [2024-11-06 20:02:53,045 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 20:02:53,046 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 224 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:53,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 430 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 20:02:53,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12835 states. [2024-11-06 20:02:53,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12835 to 12835. [2024-11-06 20:02:53,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12835 states, 12834 states have (on average 1.0260246220975533) internal successors, (13168), 12834 states have internal predecessors, (13168), 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 20:02:53,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12835 states to 12835 states and 13168 transitions. [2024-11-06 20:02:53,131 INFO L78 Accepts]: Start accepts. Automaton has 12835 states and 13168 transitions. Word has length 1305 [2024-11-06 20:02:53,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:53,132 INFO L471 AbstractCegarLoop]: Abstraction has 12835 states and 13168 transitions. [2024-11-06 20:02:53,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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 20:02:53,132 INFO L276 IsEmpty]: Start isEmpty. Operand 12835 states and 13168 transitions. [2024-11-06 20:02:53,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1331 [2024-11-06 20:02:53,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:53,144 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:02:53,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-06 20:02:53,145 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:53,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:53,145 INFO L85 PathProgramCache]: Analyzing trace with hash -123475115, now seen corresponding path program 1 times [2024-11-06 20:02:53,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:53,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564290339] [2024-11-06 20:02:53,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:53,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:54,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3207 backedges. 2224 proven. 0 refuted. 0 times theorem prover too weak. 983 trivial. 0 not checked. [2024-11-06 20:02:54,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:54,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564290339] [2024-11-06 20:02:54,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564290339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:54,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:54,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 20:02:54,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503722945] [2024-11-06 20:02:54,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:54,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:02:54,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:54,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:02:54,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:02:54,023 INFO L87 Difference]: Start difference. First operand 12835 states and 13168 transitions. Second operand has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 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 20:02:54,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:54,851 INFO L93 Difference]: Finished difference Result 25339 states and 26007 transitions. [2024-11-06 20:02:54,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 20:02:54,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 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 1330 [2024-11-06 20:02:54,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:54,861 INFO L225 Difference]: With dead ends: 25339 [2024-11-06 20:02:54,861 INFO L226 Difference]: Without dead ends: 13164 [2024-11-06 20:02:54,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 20:02:54,867 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 120 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:54,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 553 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 20:02:54,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2024-11-06 20:02:54,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 13164. [2024-11-06 20:02:54,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.0254501253513637) internal successors, (13498), 13163 states have internal predecessors, (13498), 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 20:02:55,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 13498 transitions. [2024-11-06 20:02:55,004 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 13498 transitions. Word has length 1330 [2024-11-06 20:02:55,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:55,004 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 13498 transitions. [2024-11-06 20:02:55,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 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 20:02:55,005 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 13498 transitions. [2024-11-06 20:02:55,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1360 [2024-11-06 20:02:55,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:55,030 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 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, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:02:55,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-06 20:02:55,031 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:55,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:55,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1066822895, now seen corresponding path program 1 times [2024-11-06 20:02:55,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:55,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329190335] [2024-11-06 20:02:55,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:55,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:56,215 INFO L134 CoverageAnalysis]: Checked inductivity of 3688 backedges. 960 proven. 0 refuted. 0 times theorem prover too weak. 2728 trivial. 0 not checked. [2024-11-06 20:02:56,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:56,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329190335] [2024-11-06 20:02:56,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329190335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:02:56,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:02:56,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:02:56,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639916456] [2024-11-06 20:02:56,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:02:56,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:02:56,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:02:56,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:02:56,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:02:56,218 INFO L87 Difference]: Start difference. First operand 13164 states and 13498 transitions. Second operand has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 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 20:02:57,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:02:57,034 INFO L93 Difference]: Finished difference Result 25997 states and 26663 transitions. [2024-11-06 20:02:57,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:02:57,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 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 1359 [2024-11-06 20:02:57,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:02:57,043 INFO L225 Difference]: With dead ends: 25997 [2024-11-06 20:02:57,044 INFO L226 Difference]: Without dead ends: 13164 [2024-11-06 20:02:57,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 20:02:57,050 INFO L432 NwaCegarLoop]: 364 mSDtfsCounter, 269 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 20:02:57,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 370 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 20:02:57,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2024-11-06 20:02:57,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 12506. [2024-11-06 20:02:57,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12506 states, 12505 states have (on average 1.0215113954418233) internal successors, (12774), 12505 states have internal predecessors, (12774), 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 20:02:57,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12506 states to 12506 states and 12774 transitions. [2024-11-06 20:02:57,128 INFO L78 Accepts]: Start accepts. Automaton has 12506 states and 12774 transitions. Word has length 1359 [2024-11-06 20:02:57,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:02:57,129 INFO L471 AbstractCegarLoop]: Abstraction has 12506 states and 12774 transitions. [2024-11-06 20:02:57,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 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 20:02:57,129 INFO L276 IsEmpty]: Start isEmpty. Operand 12506 states and 12774 transitions. [2024-11-06 20:02:57,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1711 [2024-11-06 20:02:57,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:02:57,151 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 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] [2024-11-06 20:02:57,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-06 20:02:57,151 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:02:57,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:02:57,152 INFO L85 PathProgramCache]: Analyzing trace with hash -500378405, now seen corresponding path program 1 times [2024-11-06 20:02:57,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:02:57,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551026278] [2024-11-06 20:02:57,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:57,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:02:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:58,480 INFO L134 CoverageAnalysis]: Checked inductivity of 5335 backedges. 3482 proven. 202 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2024-11-06 20:02:58,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:02:58,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551026278] [2024-11-06 20:02:58,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551026278] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:02:58,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438794019] [2024-11-06 20:02:58,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:02:58,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:02:58,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:02:58,486 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 20:02:58,488 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 20:02:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:02:58,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 1960 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-06 20:02:58,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:03:01,450 INFO L134 CoverageAnalysis]: Checked inductivity of 5335 backedges. 2342 proven. 201 refuted. 0 times theorem prover too weak. 2792 trivial. 0 not checked. [2024-11-06 20:03:01,450 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 20:03:05,382 INFO L134 CoverageAnalysis]: Checked inductivity of 5335 backedges. 2342 proven. 201 refuted. 0 times theorem prover too weak. 2792 trivial. 0 not checked. [2024-11-06 20:03:05,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438794019] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 20:03:05,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 20:03:05,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2024-11-06 20:03:05,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118751142] [2024-11-06 20:03:05,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 20:03:05,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-06 20:03:05,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:03:05,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-06 20:03:05,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-06 20:03:05,387 INFO L87 Difference]: Start difference. First operand 12506 states and 12774 transitions. Second operand has 10 states, 10 states have (on average 174.7) internal successors, (1747), 9 states have internal predecessors, (1747), 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 20:03:08,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:03:08,903 INFO L93 Difference]: Finished difference Result 25010 states and 25548 transitions. [2024-11-06 20:03:08,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-06 20:03:08,904 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 174.7) internal successors, (1747), 9 states have internal predecessors, (1747), 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 1710 [2024-11-06 20:03:08,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:03:08,914 INFO L225 Difference]: With dead ends: 25010 [2024-11-06 20:03:08,915 INFO L226 Difference]: Without dead ends: 13164 [2024-11-06 20:03:08,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3429 GetRequests, 3415 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-11-06 20:03:08,922 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 1658 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 6451 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1658 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 6589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 6451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-06 20:03:08,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1658 Valid, 89 Invalid, 6589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 6451 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-06 20:03:08,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2024-11-06 20:03:08,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 12835. [2024-11-06 20:03:08,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12835 states, 12834 states have (on average 1.0180769830138694) internal successors, (13066), 12834 states have internal predecessors, (13066), 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 20:03:09,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12835 states to 12835 states and 13066 transitions. [2024-11-06 20:03:09,005 INFO L78 Accepts]: Start accepts. Automaton has 12835 states and 13066 transitions. Word has length 1710 [2024-11-06 20:03:09,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:03:09,005 INFO L471 AbstractCegarLoop]: Abstraction has 12835 states and 13066 transitions. [2024-11-06 20:03:09,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.7) internal successors, (1747), 9 states have internal predecessors, (1747), 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 20:03:09,006 INFO L276 IsEmpty]: Start isEmpty. Operand 12835 states and 13066 transitions. [2024-11-06 20:03:09,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1766 [2024-11-06 20:03:09,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:03:09,029 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-06 20:03:09,048 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 20:03:09,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:03:09,230 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:03:09,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:03:09,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1831347317, now seen corresponding path program 1 times [2024-11-06 20:03:09,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:03:09,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703556743] [2024-11-06 20:03:09,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:03:09,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:03:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:03:10,718 INFO L134 CoverageAnalysis]: Checked inductivity of 6191 backedges. 2510 proven. 0 refuted. 0 times theorem prover too weak. 3681 trivial. 0 not checked. [2024-11-06 20:03:10,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:03:10,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703556743] [2024-11-06 20:03:10,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703556743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:03:10,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:03:10,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:03:10,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750439437] [2024-11-06 20:03:10,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:03:10,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:03:10,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:03:10,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:03:10,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:03:10,724 INFO L87 Difference]: Start difference. First operand 12835 states and 13066 transitions. Second operand has 4 states, 4 states have (on average 168.0) internal successors, (672), 3 states have internal predecessors, (672), 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 20:03:11,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:03:11,411 INFO L93 Difference]: Finished difference Result 25668 states and 26133 transitions. [2024-11-06 20:03:11,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:03:11,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 168.0) internal successors, (672), 3 states have internal predecessors, (672), 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 1765 [2024-11-06 20:03:11,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:03:11,421 INFO L225 Difference]: With dead ends: 25668 [2024-11-06 20:03:11,421 INFO L226 Difference]: Without dead ends: 13164 [2024-11-06 20:03:11,427 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 20:03:11,428 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 268 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 20:03:11,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 97 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 20:03:11,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2024-11-06 20:03:11,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 13164. [2024-11-06 20:03:11,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.0177771024842361) internal successors, (13397), 13163 states have internal predecessors, (13397), 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 20:03:11,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 13397 transitions. [2024-11-06 20:03:11,513 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 13397 transitions. Word has length 1765 [2024-11-06 20:03:11,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:03:11,514 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 13397 transitions. [2024-11-06 20:03:11,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 168.0) internal successors, (672), 3 states have internal predecessors, (672), 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 20:03:11,514 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 13397 transitions. [2024-11-06 20:03:11,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1829 [2024-11-06 20:03:11,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:03:11,532 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-06 20:03:11,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-06 20:03:11,533 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:03:11,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:03:11,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1452463880, now seen corresponding path program 1 times [2024-11-06 20:03:11,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:03:11,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908644369] [2024-11-06 20:03:11,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:03:11,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:03:11,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:03:14,584 INFO L134 CoverageAnalysis]: Checked inductivity of 6446 backedges. 3969 proven. 1226 refuted. 0 times theorem prover too weak. 1251 trivial. 0 not checked. [2024-11-06 20:03:14,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:03:14,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908644369] [2024-11-06 20:03:14,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908644369] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:03:14,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659443672] [2024-11-06 20:03:14,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:03:14,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:03:14,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:03:14,588 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 20:03:14,588 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 20:03:14,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:03:14,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 2099 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 20:03:14,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:03:15,226 INFO L134 CoverageAnalysis]: Checked inductivity of 6446 backedges. 4252 proven. 0 refuted. 0 times theorem prover too weak. 2194 trivial. 0 not checked. [2024-11-06 20:03:15,227 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:03:15,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659443672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:03:15,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 20:03:15,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-06 20:03:15,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739577544] [2024-11-06 20:03:15,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:03:15,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:03:15,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:03:15,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:03:15,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-06 20:03:15,229 INFO L87 Difference]: Start difference. First operand 13164 states and 13397 transitions. Second operand has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 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 20:03:15,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:03:15,831 INFO L93 Difference]: Finished difference Result 25668 states and 26130 transitions. [2024-11-06 20:03:15,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:03:15,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 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 1828 [2024-11-06 20:03:15,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:03:15,841 INFO L225 Difference]: With dead ends: 25668 [2024-11-06 20:03:15,841 INFO L226 Difference]: Without dead ends: 13164 [2024-11-06 20:03:15,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1836 GetRequests, 1830 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-06 20:03:15,848 INFO L432 NwaCegarLoop]: 404 mSDtfsCounter, 65 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 20:03:15,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 410 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 20:03:15,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2024-11-06 20:03:15,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 13164. [2024-11-06 20:03:15,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.016257692015498) internal successors, (13377), 13163 states have internal predecessors, (13377), 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 20:03:15,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 13377 transitions. [2024-11-06 20:03:15,936 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 13377 transitions. Word has length 1828 [2024-11-06 20:03:15,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:03:15,936 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 13377 transitions. [2024-11-06 20:03:15,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 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 20:03:15,937 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 13377 transitions. [2024-11-06 20:03:15,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1913 [2024-11-06 20:03:15,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:03:15,956 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 20:03:15,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-06 20:03:16,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:03:16,156 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:03:16,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:03:16,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1437118187, now seen corresponding path program 1 times [2024-11-06 20:03:16,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:03:16,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088666375] [2024-11-06 20:03:16,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:03:16,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:03:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:03:18,574 INFO L134 CoverageAnalysis]: Checked inductivity of 7925 backedges. 4713 proven. 156 refuted. 0 times theorem prover too weak. 3056 trivial. 0 not checked. [2024-11-06 20:03:18,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:03:18,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088666375] [2024-11-06 20:03:18,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088666375] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:03:18,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603088703] [2024-11-06 20:03:18,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:03:18,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:03:18,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:03:18,578 INFO L229 MonitoredProcess]: Starting monitored process 5 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 20:03:18,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-06 20:03:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:03:18,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 2217 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 20:03:18,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:03:19,471 INFO L134 CoverageAnalysis]: Checked inductivity of 7925 backedges. 4752 proven. 0 refuted. 0 times theorem prover too weak. 3173 trivial. 0 not checked. [2024-11-06 20:03:19,471 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:03:19,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603088703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:03:19,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 20:03:19,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-06 20:03:19,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151855384] [2024-11-06 20:03:19,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:03:19,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:03:19,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:03:19,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:03:19,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 20:03:19,474 INFO L87 Difference]: Start difference. First operand 13164 states and 13377 transitions. Second operand has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 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 20:03:20,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:03:20,132 INFO L93 Difference]: Finished difference Result 25668 states and 26090 transitions. [2024-11-06 20:03:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:03:20,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 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 1912 [2024-11-06 20:03:20,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:03:20,144 INFO L225 Difference]: With dead ends: 25668 [2024-11-06 20:03:20,144 INFO L226 Difference]: Without dead ends: 13164 [2024-11-06 20:03:20,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1919 GetRequests, 1915 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 20:03:20,153 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 120 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 20:03:20,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 424 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 20:03:20,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2024-11-06 20:03:20,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 13164. [2024-11-06 20:03:20,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.0159538099217504) internal successors, (13373), 13163 states have internal predecessors, (13373), 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 20:03:20,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 13373 transitions. [2024-11-06 20:03:20,252 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 13373 transitions. Word has length 1912 [2024-11-06 20:03:20,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:03:20,253 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 13373 transitions. [2024-11-06 20:03:20,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 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 20:03:20,253 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 13373 transitions. [2024-11-06 20:03:20,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1934 [2024-11-06 20:03:20,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:03:20,272 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 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] [2024-11-06 20:03:20,286 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-06 20:03:20,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-06 20:03:20,473 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:03:20,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:03:20,473 INFO L85 PathProgramCache]: Analyzing trace with hash 390685501, now seen corresponding path program 1 times [2024-11-06 20:03:20,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:03:20,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100321117] [2024-11-06 20:03:20,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:03:20,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:03:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:03:22,251 INFO L134 CoverageAnalysis]: Checked inductivity of 7653 backedges. 3734 proven. 0 refuted. 0 times theorem prover too weak. 3919 trivial. 0 not checked. [2024-11-06 20:03:22,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:03:22,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100321117] [2024-11-06 20:03:22,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100321117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:03:22,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:03:22,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:03:22,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035318953] [2024-11-06 20:03:22,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:03:22,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:03:22,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:03:22,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:03:22,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:03:22,254 INFO L87 Difference]: Start difference. First operand 13164 states and 13373 transitions. Second operand has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 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 20:03:22,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:03:22,995 INFO L93 Difference]: Finished difference Result 29287 states and 29763 transitions. [2024-11-06 20:03:22,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:03:22,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 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 1933 [2024-11-06 20:03:22,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:03:23,010 INFO L225 Difference]: With dead ends: 29287 [2024-11-06 20:03:23,010 INFO L226 Difference]: Without dead ends: 16783 [2024-11-06 20:03:23,018 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 20:03:23,018 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 209 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:03:23,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 48 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:03:23,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16783 states. [2024-11-06 20:03:23,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16783 to 13493. [2024-11-06 20:03:23,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13493 states, 13492 states have (on average 1.0167506670619626) internal successors, (13718), 13492 states have internal predecessors, (13718), 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 20:03:23,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13493 states to 13493 states and 13718 transitions. [2024-11-06 20:03:23,111 INFO L78 Accepts]: Start accepts. Automaton has 13493 states and 13718 transitions. Word has length 1933 [2024-11-06 20:03:23,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:03:23,112 INFO L471 AbstractCegarLoop]: Abstraction has 13493 states and 13718 transitions. [2024-11-06 20:03:23,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 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 20:03:23,112 INFO L276 IsEmpty]: Start isEmpty. Operand 13493 states and 13718 transitions. [2024-11-06 20:03:23,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1975 [2024-11-06 20:03:23,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:03:23,164 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:03:23,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-06 20:03:23,165 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:03:23,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:03:23,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1060738857, now seen corresponding path program 1 times [2024-11-06 20:03:23,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:03:23,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78708834] [2024-11-06 20:03:23,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:03:23,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:03:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:03:25,149 INFO L134 CoverageAnalysis]: Checked inductivity of 8480 backedges. 6279 proven. 78 refuted. 0 times theorem prover too weak. 2123 trivial. 0 not checked. [2024-11-06 20:03:25,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:03:25,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78708834] [2024-11-06 20:03:25,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78708834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:03:25,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128724480] [2024-11-06 20:03:25,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:03:25,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:03:25,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:03:25,153 INFO L229 MonitoredProcess]: Starting monitored process 6 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 20:03:25,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-06 20:03:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:03:25,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 2293 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 20:03:25,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:03:25,803 INFO L134 CoverageAnalysis]: Checked inductivity of 8480 backedges. 731 proven. 0 refuted. 0 times theorem prover too weak. 7749 trivial. 0 not checked. [2024-11-06 20:03:25,803 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:03:25,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128724480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:03:25,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 20:03:25,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-06 20:03:25,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552581315] [2024-11-06 20:03:25,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:03:25,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:03:25,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:03:25,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:03:25,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:03:25,806 INFO L87 Difference]: Start difference. First operand 13493 states and 13718 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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 20:03:26,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:03:26,564 INFO L93 Difference]: Finished difference Result 31588 states and 32114 transitions. [2024-11-06 20:03:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:03:26,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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 1974 [2024-11-06 20:03:26,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:03:26,566 INFO L225 Difference]: With dead ends: 31588 [2024-11-06 20:03:26,566 INFO L226 Difference]: Without dead ends: 0 [2024-11-06 20:03:26,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1979 GetRequests, 1974 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:03:26,576 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 271 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:03:26,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 407 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:03:26,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-06 20:03:26,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-06 20:03:26,577 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 20:03:26,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-06 20:03:26,577 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1974 [2024-11-06 20:03:26,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:03:26,578 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-06 20:03:26,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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 20:03:26,578 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-06 20:03:26,578 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-06 20:03:26,580 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 20:03:26,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-06 20:03:26,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-06 20:03:26,783 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] [2024-11-06 20:03:26,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-06 20:03:27,835 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 20:03:27,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 08:03:27 BoogieIcfgContainer [2024-11-06 20:03:27,856 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 20:03:27,857 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-06 20:03:27,857 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-06 20:03:27,857 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-06 20:03:27,858 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:02:23" (3/4) ... [2024-11-06 20:03:27,860 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-06 20:03:27,892 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-06 20:03:27,893 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-06 20:03:27,894 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-06 20:03:27,895 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-06 20:03:28,069 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-06 20:03:28,072 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-06 20:03:28,072 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-06 20:03:28,073 INFO L158 Benchmark]: Toolchain (without parser) took 67560.47ms. Allocated memory was 100.7MB in the beginning and 2.2GB in the end (delta: 2.1GB). Free memory was 72.9MB in the beginning and 1.9GB in the end (delta: -1.9GB). Peak memory consumption was 221.3MB. Max. memory is 16.1GB. [2024-11-06 20:03:28,073 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 20:03:28,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 716.82ms. Allocated memory is still 100.7MB. Free memory was 72.7MB in the beginning and 50.9MB in the end (delta: 21.7MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2024-11-06 20:03:28,075 INFO L158 Benchmark]: Boogie Procedure Inliner took 178.41ms. Allocated memory is still 100.7MB. Free memory was 50.9MB in the beginning and 60.1MB in the end (delta: -9.2MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2024-11-06 20:03:28,075 INFO L158 Benchmark]: Boogie Preprocessor took 226.42ms. Allocated memory is still 100.7MB. Free memory was 60.1MB in the beginning and 51.3MB in the end (delta: 8.8MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2024-11-06 20:03:28,075 INFO L158 Benchmark]: RCFGBuilder took 2201.27ms. Allocated memory was 100.7MB in the beginning and 167.8MB in the end (delta: 67.1MB). Free memory was 51.3MB in the beginning and 59.5MB in the end (delta: -8.2MB). Peak memory consumption was 89.1MB. Max. memory is 16.1GB. [2024-11-06 20:03:28,077 INFO L158 Benchmark]: TraceAbstraction took 64014.22ms. Allocated memory was 167.8MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 59.5MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-11-06 20:03:28,077 INFO L158 Benchmark]: Witness Printer took 216.05ms. Allocated memory is still 2.2GB. Free memory was 2.0GB in the beginning and 1.9GB in the end (delta: 21.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-06 20:03:28,078 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 716.82ms. Allocated memory is still 100.7MB. Free memory was 72.7MB in the beginning and 50.9MB in the end (delta: 21.7MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 178.41ms. Allocated memory is still 100.7MB. Free memory was 50.9MB in the beginning and 60.1MB in the end (delta: -9.2MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 226.42ms. Allocated memory is still 100.7MB. Free memory was 60.1MB in the beginning and 51.3MB in the end (delta: 8.8MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. * RCFGBuilder took 2201.27ms. Allocated memory was 100.7MB in the beginning and 167.8MB in the end (delta: 67.1MB). Free memory was 51.3MB in the beginning and 59.5MB in the end (delta: -8.2MB). Peak memory consumption was 89.1MB. Max. memory is 16.1GB. * TraceAbstraction took 64014.22ms. Allocated memory was 167.8MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 59.5MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 216.05ms. Allocated memory is still 2.2GB. Free memory was 2.0GB in the beginning and 1.9GB in the end (delta: 21.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 206]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 396 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 62.9s, OverallIterations: 24, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 24.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6661 SdHoareTripleChecker+Valid, 22.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6661 mSDsluCounter, 6900 SdHoareTripleChecker+Invalid, 18.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 346 mSDsCounter, 2471 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26016 IncrementalHoareTripleChecker+Invalid, 28487 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2471 mSolverCounterUnsat, 6554 mSDtfsCounter, 26016 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10239 GetRequests, 10180 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14480occurred in iteration=11, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 24 MinimizatonAttempts, 8565 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 29.3s InterpolantComputationTime, 33327 NumberOfCodeBlocks, 33327 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 35007 ConstructedInterpolants, 0 QuantifiedInterpolants, 90569 SizeOfPredicates, 2 NumberOfNonLiveVariables, 9721 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 30 InterpolantComputations, 23 PerfectInterpolantSequences, 102470/105268 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1783]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((a16 == 9) && (7 == a12)) || ((((a12 <= 5) && (a16 == 12)) && ((5 != a12) || (0 < ((long long) a18 + 156)))) && (a15 == 3))) || (((a12 == 6) && (a16 <= 11)) && (a15 == 3))) || ((((a16 == 11) && (5 == a12)) && (((long long) 87 + a18) == 0)) && (a15 == 3))) || ((((a16 <= 8) && (7 <= a18)) && (a12 == 8)) && (a18 <= 132))) || ((a12 == 9) && (a16 == 9))) || ((a16 <= 8) && (a12 == 9))) || (((a12 == 8) && (a16 == 12)) && (a15 == 3))) || (((a16 <= 8) && (a12 == 8)) && (((long long) a18 + 156) <= 0))) || (((a12 == 6) && (a16 <= 11)) && (4 <= a15))) || ((a12 <= 5) && (a16 == 9))) || (((a16 == 9) && (a15 <= 3)) && (a12 == 8))) || (((a12 <= 5) && (a16 <= 11)) && (4 <= a15))) || (((a12 == 9) && (a16 == 12)) && (a15 == 3))) || (((((a12 <= 5) && (7 <= a18)) && (a18 <= 132)) && (a16 <= 11)) && (a15 == 3))) || (((a16 == 9) && (a12 == 8)) && (a18 <= 132))) || (((a12 == 8) && (a16 <= 11)) && (a15 == 3))) || ((a16 <= 8) && (a15 <= 3))) || (((a12 == 9) && (a16 <= 11)) && (a15 == 3))) || (((a12 == 6) && (a16 == 12)) && (a15 == 3))) || ((a16 <= 8) && (7 == a12))) || ((((a16 == 12) && (a18 <= 132)) && (a15 == 3)) && (7 == a12))) || (((a16 <= 11) && (a15 == 3)) && (7 == a12))) RESULT: Ultimate proved your program to be correct! [2024-11-06 20:03:28,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE