./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label09.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/Problem13_label09.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', 'd7f66091a22b7f33dbae7f0078b7d76412336b82f61d79dbfed76c4950c4dfdc'] 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/Problem13_label09.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 d7f66091a22b7f33dbae7f0078b7d76412336b82f61d79dbfed76c4950c4dfdc --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 19:46:40,537 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 19:46:40,626 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 19:46:40,633 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 19:46:40,633 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 19:46:40,657 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 19:46:40,657 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 19:46:40,658 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 19:46:40,658 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 19:46:40,658 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 19:46:40,658 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 19:46:40,658 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 19:46:40,658 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 19:46:40,658 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 19:46:40,658 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 19:46:40,658 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 19:46:40,658 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 19:46:40,658 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 19:46:40,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 19:46:40,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 19:46:40,659 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 19:46:40,659 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 19:46:40,659 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 19:46:40,659 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 19:46:40,659 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 19:46:40,659 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 19:46:40,659 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 19:46:40,659 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 19:46:40,659 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 19:46:40,659 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 19:46:40,659 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 19:46:40,659 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 19:46:40,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:46:40,659 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 19:46:40,659 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 19:46:40,659 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 19:46:40,659 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 19:46:40,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 19:46:40,659 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 19:46:40,659 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 19:46:40,660 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 19:46:40,660 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 19:46:40,660 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 -> d7f66091a22b7f33dbae7f0078b7d76412336b82f61d79dbfed76c4950c4dfdc [2024-11-06 19:46:40,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 19:46:40,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 19:46:40,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 19:46:40,919 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 19:46:40,919 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 19:46:40,924 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label09.c [2024-11-06 19:46:42,076 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 19:46:42,539 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 19:46:42,540 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label09.c [2024-11-06 19:46:42,565 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dc39a10e0/31ca08827e084c11b32af05c2836f4ab/FLAG11a22d2fc [2024-11-06 19:46:42,578 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dc39a10e0/31ca08827e084c11b32af05c2836f4ab [2024-11-06 19:46:42,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 19:46:42,580 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 19:46:42,581 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 19:46:42,581 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 19:46:42,584 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 19:46:42,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:46:42" (1/1) ... [2024-11-06 19:46:42,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d502b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:42, skipping insertion in model container [2024-11-06 19:46:42,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:46:42" (1/1) ... [2024-11-06 19:46:42,648 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 19:46:42,808 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/Problem13_label09.c[8517,8530] [2024-11-06 19:46:43,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:46:43,300 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 19:46:43,323 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/Problem13_label09.c[8517,8530] [2024-11-06 19:46:43,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:46:43,610 INFO L204 MainTranslator]: Completed translation [2024-11-06 19:46:43,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:43 WrapperNode [2024-11-06 19:46:43,612 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 19:46:43,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 19:46:43,613 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 19:46:43,613 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 19:46:43,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:43" (1/1) ... [2024-11-06 19:46:43,662 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:43" (1/1) ... [2024-11-06 19:46:44,171 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5587 [2024-11-06 19:46:44,173 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 19:46:44,174 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 19:46:44,174 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 19:46:44,174 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 19:46:44,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:43" (1/1) ... [2024-11-06 19:46:44,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:43" (1/1) ... [2024-11-06 19:46:44,238 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:43" (1/1) ... [2024-11-06 19:46:44,523 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-06 19:46:44,523 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:43" (1/1) ... [2024-11-06 19:46:44,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:43" (1/1) ... [2024-11-06 19:46:44,615 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:43" (1/1) ... [2024-11-06 19:46:44,704 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:43" (1/1) ... [2024-11-06 19:46:44,743 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:43" (1/1) ... [2024-11-06 19:46:44,777 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:43" (1/1) ... [2024-11-06 19:46:44,870 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 19:46:44,870 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 19:46:44,871 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 19:46:44,871 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 19:46:44,872 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:43" (1/1) ... [2024-11-06 19:46:44,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:46:44,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:46:44,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-06 19:46:44,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-06 19:46:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 19:46:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 19:46:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 19:46:44,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 19:46:44,973 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 19:46:44,974 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 19:46:49,385 INFO L? ?]: Removed 738 outVars from TransFormulas that were not future-live. [2024-11-06 19:46:49,385 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 19:46:49,406 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 19:46:49,406 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 19:46:49,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:46:49 BoogieIcfgContainer [2024-11-06 19:46:49,407 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 19:46:49,409 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 19:46:49,409 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 19:46:49,412 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 19:46:49,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:46:42" (1/3) ... [2024-11-06 19:46:49,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e5b49f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:46:49, skipping insertion in model container [2024-11-06 19:46:49,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:46:43" (2/3) ... [2024-11-06 19:46:49,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e5b49f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:46:49, skipping insertion in model container [2024-11-06 19:46:49,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:46:49" (3/3) ... [2024-11-06 19:46:49,416 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label09.c [2024-11-06 19:46:49,426 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 19:46:49,427 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 19:46:49,477 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 19:46:49,483 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;@7e6929e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 19:46:49,484 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 19:46:49,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:46:49,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-06 19:46:49,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:46:49,494 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] [2024-11-06 19:46:49,494 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:46:49,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:46:49,497 INFO L85 PathProgramCache]: Analyzing trace with hash -634083006, now seen corresponding path program 1 times [2024-11-06 19:46:49,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:46:49,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646593259] [2024-11-06 19:46:49,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:46:49,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:46:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:46:49,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:46:49,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:46:49,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646593259] [2024-11-06 19:46:49,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646593259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:46:49,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:46:49,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:46:49,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069919905] [2024-11-06 19:46:49,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:46:49,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:46:49,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:46:49,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:46:49,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:46:49,879 INFO L87 Difference]: Start difference. First operand has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 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 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:46:53,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:46:53,799 INFO L93 Difference]: Finished difference Result 3121 states and 5804 transitions. [2024-11-06 19:46:53,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:46:53,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 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 60 [2024-11-06 19:46:53,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:46:53,822 INFO L225 Difference]: With dead ends: 3121 [2024-11-06 19:46:53,825 INFO L226 Difference]: Without dead ends: 1944 [2024-11-06 19:46:53,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:46:53,836 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 929 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 3124 mSolverCounterSat, 577 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 3701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 577 IncrementalHoareTripleChecker+Valid, 3124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-06 19:46:53,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [929 Valid, 575 Invalid, 3701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [577 Valid, 3124 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-06 19:46:53,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2024-11-06 19:46:53,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1873. [2024-11-06 19:46:53,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1873 states, 1872 states have (on average 1.7393162393162394) internal successors, (3256), 1872 states have internal predecessors, (3256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:46:53,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1873 states to 1873 states and 3256 transitions. [2024-11-06 19:46:53,914 INFO L78 Accepts]: Start accepts. Automaton has 1873 states and 3256 transitions. Word has length 60 [2024-11-06 19:46:53,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:46:53,915 INFO L471 AbstractCegarLoop]: Abstraction has 1873 states and 3256 transitions. [2024-11-06 19:46:53,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:46:53,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1873 states and 3256 transitions. [2024-11-06 19:46:53,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-06 19:46:53,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:46:53,917 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:46:53,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 19:46:53,918 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:46:53,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:46:53,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1233426070, now seen corresponding path program 1 times [2024-11-06 19:46:53,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:46:53,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482362227] [2024-11-06 19:46:53,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:46:53,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:46:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:46:54,102 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:46:54,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:46:54,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482362227] [2024-11-06 19:46:54,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482362227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:46:54,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:46:54,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:46:54,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669865521] [2024-11-06 19:46:54,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:46:54,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:46:54,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:46:54,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:46:54,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:46:54,107 INFO L87 Difference]: Start difference. First operand 1873 states and 3256 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:46:57,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:46:57,103 INFO L93 Difference]: Finished difference Result 5351 states and 9369 transitions. [2024-11-06 19:46:57,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:46:57,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 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 125 [2024-11-06 19:46:57,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:46:57,114 INFO L225 Difference]: With dead ends: 5351 [2024-11-06 19:46:57,115 INFO L226 Difference]: Without dead ends: 3480 [2024-11-06 19:46:57,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:46:57,118 INFO L432 NwaCegarLoop]: 926 mSDtfsCounter, 884 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 2338 mSolverCounterSat, 878 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 3216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 878 IncrementalHoareTripleChecker+Valid, 2338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:46:57,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 1079 Invalid, 3216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [878 Valid, 2338 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-06 19:46:57,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3480 states. [2024-11-06 19:46:57,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3480 to 3479. [2024-11-06 19:46:57,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3479 states, 3478 states have (on average 1.518688901667625) internal successors, (5282), 3478 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:46:57,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3479 states to 3479 states and 5282 transitions. [2024-11-06 19:46:57,175 INFO L78 Accepts]: Start accepts. Automaton has 3479 states and 5282 transitions. Word has length 125 [2024-11-06 19:46:57,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:46:57,176 INFO L471 AbstractCegarLoop]: Abstraction has 3479 states and 5282 transitions. [2024-11-06 19:46:57,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:46:57,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3479 states and 5282 transitions. [2024-11-06 19:46:57,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-06 19:46:57,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:46:57,179 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:46:57,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 19:46:57,180 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:46:57,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:46:57,180 INFO L85 PathProgramCache]: Analyzing trace with hash 843865445, now seen corresponding path program 1 times [2024-11-06 19:46:57,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:46:57,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894271552] [2024-11-06 19:46:57,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:46:57,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:46:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:46:57,344 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:46:57,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:46:57,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894271552] [2024-11-06 19:46:57,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894271552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:46:57,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:46:57,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:46:57,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475204217] [2024-11-06 19:46:57,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:46:57,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:46:57,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:46:57,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:46:57,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:46:57,345 INFO L87 Difference]: Start difference. First operand 3479 states and 5282 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:00,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:47:00,364 INFO L93 Difference]: Finished difference Result 10142 states and 15438 transitions. [2024-11-06 19:47:00,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:47:00,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 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 127 [2024-11-06 19:47:00,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:47:00,409 INFO L225 Difference]: With dead ends: 10142 [2024-11-06 19:47:00,410 INFO L226 Difference]: Without dead ends: 6665 [2024-11-06 19:47:00,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:47:00,420 INFO L432 NwaCegarLoop]: 744 mSDtfsCounter, 976 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2553 mSolverCounterSat, 772 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 3325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 772 IncrementalHoareTripleChecker+Valid, 2553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:47:00,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 877 Invalid, 3325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [772 Valid, 2553 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-06 19:47:00,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6665 states. [2024-11-06 19:47:00,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6665 to 6657. [2024-11-06 19:47:00,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6657 states, 6656 states have (on average 1.3728966346153846) internal successors, (9138), 6656 states have internal predecessors, (9138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:00,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6657 states to 6657 states and 9138 transitions. [2024-11-06 19:47:00,540 INFO L78 Accepts]: Start accepts. Automaton has 6657 states and 9138 transitions. Word has length 127 [2024-11-06 19:47:00,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:47:00,541 INFO L471 AbstractCegarLoop]: Abstraction has 6657 states and 9138 transitions. [2024-11-06 19:47:00,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:00,543 INFO L276 IsEmpty]: Start isEmpty. Operand 6657 states and 9138 transitions. [2024-11-06 19:47:00,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-06 19:47:00,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:47:00,546 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:47:00,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 19:47:00,547 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:47:00,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:47:00,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1693822870, now seen corresponding path program 1 times [2024-11-06 19:47:00,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:47:00,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729182186] [2024-11-06 19:47:00,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:47:00,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:47:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:47:00,698 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:47:00,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:47:00,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729182186] [2024-11-06 19:47:00,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729182186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:47:00,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:47:00,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:47:00,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179489666] [2024-11-06 19:47:00,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:47:00,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:47:00,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:47:00,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:47:00,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:47:00,701 INFO L87 Difference]: Start difference. First operand 6657 states and 9138 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:03,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:47:03,151 INFO L93 Difference]: Finished difference Result 19637 states and 26969 transitions. [2024-11-06 19:47:03,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:47:03,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 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 133 [2024-11-06 19:47:03,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:47:03,176 INFO L225 Difference]: With dead ends: 19637 [2024-11-06 19:47:03,176 INFO L226 Difference]: Without dead ends: 12982 [2024-11-06 19:47:03,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:47:03,183 INFO L432 NwaCegarLoop]: 1012 mSDtfsCounter, 791 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 3277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:47:03,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 1163 Invalid, 3277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [792 Valid, 2485 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-06 19:47:03,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12982 states. [2024-11-06 19:47:03,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12982 to 12175. [2024-11-06 19:47:03,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12175 states, 12174 states have (on average 1.2529160505996386) internal successors, (15253), 12174 states have internal predecessors, (15253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:03,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12175 states to 12175 states and 15253 transitions. [2024-11-06 19:47:03,314 INFO L78 Accepts]: Start accepts. Automaton has 12175 states and 15253 transitions. Word has length 133 [2024-11-06 19:47:03,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:47:03,314 INFO L471 AbstractCegarLoop]: Abstraction has 12175 states and 15253 transitions. [2024-11-06 19:47:03,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:03,314 INFO L276 IsEmpty]: Start isEmpty. Operand 12175 states and 15253 transitions. [2024-11-06 19:47:03,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-06 19:47:03,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:47:03,315 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:47:03,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 19:47:03,315 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:47:03,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:47:03,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1278101586, now seen corresponding path program 1 times [2024-11-06 19:47:03,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:47:03,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674444938] [2024-11-06 19:47:03,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:47:03,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:47:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:47:03,629 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:47:03,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:47:03,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674444938] [2024-11-06 19:47:03,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674444938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:47:03,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:47:03,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:47:03,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146308045] [2024-11-06 19:47:03,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:47:03,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:47:03,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:47:03,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:47:03,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:47:03,632 INFO L87 Difference]: Start difference. First operand 12175 states and 15253 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:06,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:47:06,123 INFO L93 Difference]: Finished difference Result 25135 states and 31306 transitions. [2024-11-06 19:47:06,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:47:06,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 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 149 [2024-11-06 19:47:06,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:47:06,149 INFO L225 Difference]: With dead ends: 25135 [2024-11-06 19:47:06,149 INFO L226 Difference]: Without dead ends: 12962 [2024-11-06 19:47:06,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:47:06,160 INFO L432 NwaCegarLoop]: 1083 mSDtfsCounter, 700 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 2529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:47:06,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1212 Invalid, 2529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-06 19:47:06,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12962 states. [2024-11-06 19:47:06,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12962 to 12962. [2024-11-06 19:47:06,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12962 states, 12961 states have (on average 1.2379446030398888) internal successors, (16045), 12961 states have internal predecessors, (16045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:06,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12962 states to 12962 states and 16045 transitions. [2024-11-06 19:47:06,315 INFO L78 Accepts]: Start accepts. Automaton has 12962 states and 16045 transitions. Word has length 149 [2024-11-06 19:47:06,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:47:06,316 INFO L471 AbstractCegarLoop]: Abstraction has 12962 states and 16045 transitions. [2024-11-06 19:47:06,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:06,316 INFO L276 IsEmpty]: Start isEmpty. Operand 12962 states and 16045 transitions. [2024-11-06 19:47:06,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-06 19:47:06,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:47:06,317 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:47:06,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 19:47:06,318 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:47:06,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:47:06,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1570681347, now seen corresponding path program 1 times [2024-11-06 19:47:06,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:47:06,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979720257] [2024-11-06 19:47:06,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:47:06,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:47:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:47:06,594 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-06 19:47:06,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:47:06,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979720257] [2024-11-06 19:47:06,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979720257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:47:06,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803780766] [2024-11-06 19:47:06,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:47:06,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:47:06,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:47:06,599 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:47:06,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 19:47:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:47:06,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:47:06,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:47:06,756 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:47:06,756 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:47:06,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803780766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:47:06,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:47:06,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-06 19:47:06,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790008357] [2024-11-06 19:47:06,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:47:06,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:47:06,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:47:06,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:47:06,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:47:06,759 INFO L87 Difference]: Start difference. First operand 12962 states and 16045 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:09,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:47:09,887 INFO L93 Difference]: Finished difference Result 36956 states and 46072 transitions. [2024-11-06 19:47:09,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:47:09,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 156 [2024-11-06 19:47:09,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:47:09,924 INFO L225 Difference]: With dead ends: 36956 [2024-11-06 19:47:09,925 INFO L226 Difference]: Without dead ends: 24783 [2024-11-06 19:47:09,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:47:09,934 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 950 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 2699 mSolverCounterSat, 810 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 3509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 810 IncrementalHoareTripleChecker+Valid, 2699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:47:09,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 645 Invalid, 3509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [810 Valid, 2699 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-06 19:47:09,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24783 states. [2024-11-06 19:47:10,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24783 to 20845. [2024-11-06 19:47:10,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20845 states, 20844 states have (on average 1.233976204183458) internal successors, (25721), 20844 states have internal predecessors, (25721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:10,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20845 states to 20845 states and 25721 transitions. [2024-11-06 19:47:10,140 INFO L78 Accepts]: Start accepts. Automaton has 20845 states and 25721 transitions. Word has length 156 [2024-11-06 19:47:10,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:47:10,141 INFO L471 AbstractCegarLoop]: Abstraction has 20845 states and 25721 transitions. [2024-11-06 19:47:10,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:10,141 INFO L276 IsEmpty]: Start isEmpty. Operand 20845 states and 25721 transitions. [2024-11-06 19:47:10,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-06 19:47:10,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:47:10,144 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:47:10,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-06 19:47:10,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:47:10,344 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:47:10,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:47:10,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1525153703, now seen corresponding path program 1 times [2024-11-06 19:47:10,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:47:10,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218002861] [2024-11-06 19:47:10,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:47:10,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:47:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:47:10,575 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-06 19:47:10,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:47:10,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218002861] [2024-11-06 19:47:10,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218002861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:47:10,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:47:10,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:47:10,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621412557] [2024-11-06 19:47:10,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:47:10,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:47:10,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:47:10,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:47:10,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:47:10,576 INFO L87 Difference]: Start difference. First operand 20845 states and 25721 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:12,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:47:12,929 INFO L93 Difference]: Finished difference Result 45642 states and 55813 transitions. [2024-11-06 19:47:12,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:47:12,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 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 272 [2024-11-06 19:47:12,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:47:12,965 INFO L225 Difference]: With dead ends: 45642 [2024-11-06 19:47:12,965 INFO L226 Difference]: Without dead ends: 25586 [2024-11-06 19:47:12,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:47:12,982 INFO L432 NwaCegarLoop]: 1025 mSDtfsCounter, 728 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 2712 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-06 19:47:12,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 1209 Invalid, 2716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2712 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-06 19:47:12,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25586 states. [2024-11-06 19:47:13,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25586 to 25577. [2024-11-06 19:47:13,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25577 states, 25576 states have (on average 1.205896152643103) internal successors, (30842), 25576 states have internal predecessors, (30842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:13,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25577 states to 25577 states and 30842 transitions. [2024-11-06 19:47:13,173 INFO L78 Accepts]: Start accepts. Automaton has 25577 states and 30842 transitions. Word has length 272 [2024-11-06 19:47:13,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:47:13,174 INFO L471 AbstractCegarLoop]: Abstraction has 25577 states and 30842 transitions. [2024-11-06 19:47:13,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:13,174 INFO L276 IsEmpty]: Start isEmpty. Operand 25577 states and 30842 transitions. [2024-11-06 19:47:13,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-06 19:47:13,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:47:13,177 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:47:13,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 19:47:13,178 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:47:13,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:47:13,178 INFO L85 PathProgramCache]: Analyzing trace with hash -153270830, now seen corresponding path program 1 times [2024-11-06 19:47:13,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:47:13,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964735345] [2024-11-06 19:47:13,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:47:13,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:47:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:47:13,340 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-06 19:47:13,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:47:13,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964735345] [2024-11-06 19:47:13,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964735345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:47:13,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:47:13,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:47:13,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875928476] [2024-11-06 19:47:13,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:47:13,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:47:13,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:47:13,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:47:13,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:47:13,343 INFO L87 Difference]: Start difference. First operand 25577 states and 30842 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:16,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:47:16,108 INFO L93 Difference]: Finished difference Result 63758 states and 78444 transitions. [2024-11-06 19:47:16,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:47:16,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 296 [2024-11-06 19:47:16,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:47:16,160 INFO L225 Difference]: With dead ends: 63758 [2024-11-06 19:47:16,160 INFO L226 Difference]: Without dead ends: 38970 [2024-11-06 19:47:16,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:47:16,183 INFO L432 NwaCegarLoop]: 836 mSDtfsCounter, 888 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 2390 mSolverCounterSat, 908 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 3298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 908 IncrementalHoareTripleChecker+Valid, 2390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:47:16,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [888 Valid, 956 Invalid, 3298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [908 Valid, 2390 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-06 19:47:16,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38970 states. [2024-11-06 19:47:16,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38970 to 36598. [2024-11-06 19:47:16,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36598 states, 36597 states have (on average 1.191299833319671) internal successors, (43598), 36597 states have internal predecessors, (43598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:16,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36598 states to 36598 states and 43598 transitions. [2024-11-06 19:47:16,463 INFO L78 Accepts]: Start accepts. Automaton has 36598 states and 43598 transitions. Word has length 296 [2024-11-06 19:47:16,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:47:16,464 INFO L471 AbstractCegarLoop]: Abstraction has 36598 states and 43598 transitions. [2024-11-06 19:47:16,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:16,464 INFO L276 IsEmpty]: Start isEmpty. Operand 36598 states and 43598 transitions. [2024-11-06 19:47:16,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-11-06 19:47:16,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:47:16,469 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-06 19:47:16,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 19:47:16,469 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:47:16,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:47:16,470 INFO L85 PathProgramCache]: Analyzing trace with hash -16737668, now seen corresponding path program 1 times [2024-11-06 19:47:16,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:47:16,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799126038] [2024-11-06 19:47:16,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:47:16,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:47:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:47:16,680 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 391 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-06 19:47:16,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:47:16,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799126038] [2024-11-06 19:47:16,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799126038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:47:16,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:47:16,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:47:16,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731091275] [2024-11-06 19:47:16,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:47:16,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:47:16,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:47:16,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:47:16,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:47:16,682 INFO L87 Difference]: Start difference. First operand 36598 states and 43598 transitions. Second operand has 4 states, 4 states have (on average 72.75) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:23,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:47:23,112 INFO L93 Difference]: Finished difference Result 106466 states and 128048 transitions. [2024-11-06 19:47:23,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:47:23,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.75) internal successors, (291), 3 states have internal predecessors, (291), 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 348 [2024-11-06 19:47:23,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:47:23,191 INFO L225 Difference]: With dead ends: 106466 [2024-11-06 19:47:23,191 INFO L226 Difference]: Without dead ends: 70657 [2024-11-06 19:47:23,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:47:23,223 INFO L432 NwaCegarLoop]: 878 mSDtfsCounter, 1717 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 6390 mSolverCounterSat, 1036 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 7426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1036 IncrementalHoareTripleChecker+Valid, 6390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-06 19:47:23,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 1084 Invalid, 7426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1036 Valid, 6390 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-06 19:47:23,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70657 states. [2024-11-06 19:47:23,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70657 to 68962. [2024-11-06 19:47:23,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68962 states, 68961 states have (on average 1.1797827757718131) internal successors, (81359), 68961 states have internal predecessors, (81359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:23,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68962 states to 68962 states and 81359 transitions. [2024-11-06 19:47:23,888 INFO L78 Accepts]: Start accepts. Automaton has 68962 states and 81359 transitions. Word has length 348 [2024-11-06 19:47:23,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:47:23,888 INFO L471 AbstractCegarLoop]: Abstraction has 68962 states and 81359 transitions. [2024-11-06 19:47:23,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.75) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:23,888 INFO L276 IsEmpty]: Start isEmpty. Operand 68962 states and 81359 transitions. [2024-11-06 19:47:23,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2024-11-06 19:47:23,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:47:23,892 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:47:23,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-06 19:47:23,892 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:47:23,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:47:23,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1843600389, now seen corresponding path program 1 times [2024-11-06 19:47:23,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:47:23,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610674902] [2024-11-06 19:47:23,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:47:23,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:47:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:47:24,797 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 244 proven. 113 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-06 19:47:24,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:47:24,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610674902] [2024-11-06 19:47:24,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610674902] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:47:24,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112851666] [2024-11-06 19:47:24,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:47:24,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:47:24,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:47:24,801 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:47:24,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-06 19:47:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:47:24,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:47:24,922 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:47:25,012 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 302 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-06 19:47:25,012 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:47:25,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112851666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:47:25,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:47:25,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-06 19:47:25,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765383340] [2024-11-06 19:47:25,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:47:25,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:47:25,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:47:25,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:47:25,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-06 19:47:25,014 INFO L87 Difference]: Start difference. First operand 68962 states and 81359 transitions. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:28,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:47:28,424 INFO L93 Difference]: Finished difference Result 192417 states and 228153 transitions. [2024-11-06 19:47:28,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:47:28,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 366 [2024-11-06 19:47:28,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:47:28,566 INFO L225 Difference]: With dead ends: 192417 [2024-11-06 19:47:28,567 INFO L226 Difference]: Without dead ends: 124244 [2024-11-06 19:47:28,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-06 19:47:28,615 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 1076 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 2634 mSolverCounterSat, 538 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 3172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 538 IncrementalHoareTripleChecker+Valid, 2634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:47:28,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 928 Invalid, 3172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [538 Valid, 2634 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-06 19:47:28,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124244 states. [2024-11-06 19:47:29,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124244 to 121067. [2024-11-06 19:47:30,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121067 states, 121066 states have (on average 1.15423818413097) internal successors, (139739), 121066 states have internal predecessors, (139739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:30,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121067 states to 121067 states and 139739 transitions. [2024-11-06 19:47:30,223 INFO L78 Accepts]: Start accepts. Automaton has 121067 states and 139739 transitions. Word has length 366 [2024-11-06 19:47:30,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:47:30,224 INFO L471 AbstractCegarLoop]: Abstraction has 121067 states and 139739 transitions. [2024-11-06 19:47:30,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:30,224 INFO L276 IsEmpty]: Start isEmpty. Operand 121067 states and 139739 transitions. [2024-11-06 19:47:30,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-11-06 19:47:30,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:47:30,233 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-06 19:47:30,492 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forcibly destroying the process [2024-11-06 19:47:30,497 WARN L724 oredProcess$PipePump]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] The stream was forcibly closed: stdIn [2024-11-06 19:47:30,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-06 19:47:30,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:47:30,497 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:47:30,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:47:30,498 INFO L85 PathProgramCache]: Analyzing trace with hash -996462798, now seen corresponding path program 1 times [2024-11-06 19:47:30,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:47:30,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816239491] [2024-11-06 19:47:30,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:47:30,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:47:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:47:30,645 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 481 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2024-11-06 19:47:30,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:47:30,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816239491] [2024-11-06 19:47:30,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816239491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:47:30,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:47:30,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:47:30,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633353705] [2024-11-06 19:47:30,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:47:30,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:47:30,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:47:30,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:47:30,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:47:30,647 INFO L87 Difference]: Start difference. First operand 121067 states and 139739 transitions. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:33,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:47:33,655 INFO L93 Difference]: Finished difference Result 230130 states and 266188 transitions. [2024-11-06 19:47:33,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:47:33,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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 414 [2024-11-06 19:47:33,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:47:33,787 INFO L225 Difference]: With dead ends: 230130 [2024-11-06 19:47:33,788 INFO L226 Difference]: Without dead ends: 109065 [2024-11-06 19:47:33,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:47:33,855 INFO L432 NwaCegarLoop]: 1504 mSDtfsCounter, 1036 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 2348 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 2943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 2348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:47:33,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1036 Valid, 1639 Invalid, 2943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 2348 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-06 19:47:33,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109065 states. [2024-11-06 19:47:34,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109065 to 102761. [2024-11-06 19:47:34,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102761 states, 102760 states have (on average 1.1134488127676139) internal successors, (114418), 102760 states have internal predecessors, (114418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:35,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102761 states to 102761 states and 114418 transitions. [2024-11-06 19:47:35,125 INFO L78 Accepts]: Start accepts. Automaton has 102761 states and 114418 transitions. Word has length 414 [2024-11-06 19:47:35,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:47:35,125 INFO L471 AbstractCegarLoop]: Abstraction has 102761 states and 114418 transitions. [2024-11-06 19:47:35,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:35,125 INFO L276 IsEmpty]: Start isEmpty. Operand 102761 states and 114418 transitions. [2024-11-06 19:47:35,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-11-06 19:47:35,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:47:35,132 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-06 19:47:35,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-06 19:47:35,132 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:47:35,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:47:35,133 INFO L85 PathProgramCache]: Analyzing trace with hash -238343487, now seen corresponding path program 1 times [2024-11-06 19:47:35,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:47:35,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537011042] [2024-11-06 19:47:35,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:47:35,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:47:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:47:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 341 proven. 110 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-06 19:47:36,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:47:36,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537011042] [2024-11-06 19:47:36,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537011042] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:47:36,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240135274] [2024-11-06 19:47:36,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:47:36,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:47:36,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:47:36,011 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:47:36,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 19:47:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:47:36,124 INFO L255 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:47:36,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:47:36,292 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-11-06 19:47:36,292 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:47:36,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240135274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:47:36,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:47:36,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-06 19:47:36,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024543456] [2024-11-06 19:47:36,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:47:36,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:47:36,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:47:36,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:47:36,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:47:36,294 INFO L87 Difference]: Start difference. First operand 102761 states and 114418 transitions. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:39,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:47:39,518 INFO L93 Difference]: Finished difference Result 204731 states and 228041 transitions. [2024-11-06 19:47:39,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:47:39,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 415 [2024-11-06 19:47:39,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:47:39,648 INFO L225 Difference]: With dead ends: 204731 [2024-11-06 19:47:39,648 INFO L226 Difference]: Without dead ends: 102759 [2024-11-06 19:47:39,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:47:39,711 INFO L432 NwaCegarLoop]: 1341 mSDtfsCounter, 1083 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 2462 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 2905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 2462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-06 19:47:39,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 1420 Invalid, 2905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 2462 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-06 19:47:39,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102759 states. [2024-11-06 19:47:40,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102759 to 102758. [2024-11-06 19:47:40,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102758 states, 102757 states have (on average 1.0837509853343326) internal successors, (111363), 102757 states have internal predecessors, (111363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:40,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102758 states to 102758 states and 111363 transitions. [2024-11-06 19:47:40,913 INFO L78 Accepts]: Start accepts. Automaton has 102758 states and 111363 transitions. Word has length 415 [2024-11-06 19:47:40,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:47:40,913 INFO L471 AbstractCegarLoop]: Abstraction has 102758 states and 111363 transitions. [2024-11-06 19:47:40,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:40,915 INFO L276 IsEmpty]: Start isEmpty. Operand 102758 states and 111363 transitions. [2024-11-06 19:47:40,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2024-11-06 19:47:40,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:47:40,931 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, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:47:40,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-06 19:47:41,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:47:41,132 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:47:41,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:47:41,132 INFO L85 PathProgramCache]: Analyzing trace with hash 227363781, now seen corresponding path program 1 times [2024-11-06 19:47:41,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:47:41,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455196538] [2024-11-06 19:47:41,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:47:41,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:47:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:47:42,209 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 525 proven. 110 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-06 19:47:42,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:47:42,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455196538] [2024-11-06 19:47:42,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455196538] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:47:42,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182389623] [2024-11-06 19:47:42,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:47:42,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:47:42,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:47:42,212 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 19:47:42,213 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 19:47:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:47:42,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 700 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:47:42,348 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:47:42,408 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 231 proven. 0 refuted. 0 times theorem prover too weak. 605 trivial. 0 not checked. [2024-11-06 19:47:42,409 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:47:42,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182389623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:47:42,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:47:42,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-06 19:47:42,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731985078] [2024-11-06 19:47:42,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:47:42,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:47:42,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:47:42,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:47:42,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:47:42,414 INFO L87 Difference]: Start difference. First operand 102758 states and 111363 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:46,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:47:46,205 INFO L93 Difference]: Finished difference Result 237002 states and 258420 transitions. [2024-11-06 19:47:46,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:47:46,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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 534 [2024-11-06 19:47:46,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:47:46,346 INFO L225 Difference]: With dead ends: 237002 [2024-11-06 19:47:46,346 INFO L226 Difference]: Without dead ends: 135033 [2024-11-06 19:47:46,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:47:46,369 INFO L432 NwaCegarLoop]: 1618 mSDtfsCounter, 886 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 2499 mSolverCounterSat, 767 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 3266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 767 IncrementalHoareTripleChecker+Valid, 2499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-06 19:47:46,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 1739 Invalid, 3266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [767 Valid, 2499 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-06 19:47:46,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135033 states. [2024-11-06 19:47:47,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135033 to 130294. [2024-11-06 19:47:47,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130294 states, 130293 states have (on average 1.0758290928906389) internal successors, (140173), 130293 states have internal predecessors, (140173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:47,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130294 states to 130294 states and 140173 transitions. [2024-11-06 19:47:47,722 INFO L78 Accepts]: Start accepts. Automaton has 130294 states and 140173 transitions. Word has length 534 [2024-11-06 19:47:47,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:47:47,722 INFO L471 AbstractCegarLoop]: Abstraction has 130294 states and 140173 transitions. [2024-11-06 19:47:47,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:47,723 INFO L276 IsEmpty]: Start isEmpty. Operand 130294 states and 140173 transitions. [2024-11-06 19:47:47,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2024-11-06 19:47:47,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:47:47,751 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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:47:47,764 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 19:47:47,952 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,SelfDestructingSolverStorable12 [2024-11-06 19:47:47,952 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:47:47,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:47:47,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1622361941, now seen corresponding path program 1 times [2024-11-06 19:47:47,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:47:47,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779362063] [2024-11-06 19:47:47,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:47:47,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:47:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:47:48,202 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 748 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-06 19:47:48,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:47:48,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779362063] [2024-11-06 19:47:48,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779362063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:47:48,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:47:48,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:47:48,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215642032] [2024-11-06 19:47:48,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:47:48,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:47:48,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:47:48,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:47:48,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:47:48,203 INFO L87 Difference]: Start difference. First operand 130294 states and 140173 transitions. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:51,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:47:51,645 INFO L93 Difference]: Finished difference Result 261381 states and 281155 transitions. [2024-11-06 19:47:51,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:47:51,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 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 663 [2024-11-06 19:47:51,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:47:51,802 INFO L225 Difference]: With dead ends: 261381 [2024-11-06 19:47:51,803 INFO L226 Difference]: Without dead ends: 131876 [2024-11-06 19:47:51,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:47:51,874 INFO L432 NwaCegarLoop]: 622 mSDtfsCounter, 835 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 2368 mSolverCounterSat, 703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 3071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 703 IncrementalHoareTripleChecker+Valid, 2368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-06 19:47:51,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 702 Invalid, 3071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [703 Valid, 2368 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-06 19:47:51,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131876 states. [2024-11-06 19:47:53,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131876 to 130284. [2024-11-06 19:47:53,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130284 states, 130283 states have (on average 1.065434477253364) internal successors, (138808), 130283 states have internal predecessors, (138808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:53,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130284 states to 130284 states and 138808 transitions. [2024-11-06 19:47:53,314 INFO L78 Accepts]: Start accepts. Automaton has 130284 states and 138808 transitions. Word has length 663 [2024-11-06 19:47:53,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:47:53,315 INFO L471 AbstractCegarLoop]: Abstraction has 130284 states and 138808 transitions. [2024-11-06 19:47:53,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:53,315 INFO L276 IsEmpty]: Start isEmpty. Operand 130284 states and 138808 transitions. [2024-11-06 19:47:53,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 719 [2024-11-06 19:47:53,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:47:53,346 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:47:53,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-06 19:47:53,350 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:47:53,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:47:53,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1650283535, now seen corresponding path program 1 times [2024-11-06 19:47:53,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:47:53,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782846586] [2024-11-06 19:47:53,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:47:53,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:47:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:47:54,877 INFO L134 CoverageAnalysis]: Checked inductivity of 917 backedges. 576 proven. 113 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-11-06 19:47:54,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:47:54,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782846586] [2024-11-06 19:47:54,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782846586] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:47:54,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354534753] [2024-11-06 19:47:54,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:47:54,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:47:54,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:47:54,883 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 19:47:54,888 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 19:47:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:47:55,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:47:55,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:47:55,457 INFO L134 CoverageAnalysis]: Checked inductivity of 917 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-06 19:47:55,458 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:47:55,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354534753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:47:55,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:47:55,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-06 19:47:55,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933877995] [2024-11-06 19:47:55,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:47:55,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:47:55,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:47:55,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:47:55,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-06 19:47:55,460 INFO L87 Difference]: Start difference. First operand 130284 states and 138808 transitions. Second operand has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:57,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:47:57,947 INFO L93 Difference]: Finished difference Result 249526 states and 266851 transitions. [2024-11-06 19:47:57,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:47:57,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 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 718 [2024-11-06 19:47:57,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:47:58,245 INFO L225 Difference]: With dead ends: 249526 [2024-11-06 19:47:58,246 INFO L226 Difference]: Without dead ends: 134990 [2024-11-06 19:47:58,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 724 GetRequests, 717 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-06 19:47:58,284 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 1016 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 840 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 3101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 840 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-06 19:47:58,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 389 Invalid, 3101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [840 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-06 19:47:58,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134990 states. [2024-11-06 19:47:59,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134990 to 134990. [2024-11-06 19:47:59,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134990 states, 134989 states have (on average 1.0631310699390322) internal successors, (143511), 134989 states have internal predecessors, (143511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:59,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134990 states to 134990 states and 143511 transitions. [2024-11-06 19:47:59,278 INFO L78 Accepts]: Start accepts. Automaton has 134990 states and 143511 transitions. Word has length 718 [2024-11-06 19:47:59,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:47:59,279 INFO L471 AbstractCegarLoop]: Abstraction has 134990 states and 143511 transitions. [2024-11-06 19:47:59,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:47:59,279 INFO L276 IsEmpty]: Start isEmpty. Operand 134990 states and 143511 transitions. [2024-11-06 19:47:59,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 771 [2024-11-06 19:47:59,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:47:59,305 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:47:59,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-06 19:47:59,505 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,SelfDestructingSolverStorable14 [2024-11-06 19:47:59,505 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:47:59,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:47:59,506 INFO L85 PathProgramCache]: Analyzing trace with hash -228091699, now seen corresponding path program 1 times [2024-11-06 19:47:59,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:47:59,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596963830] [2024-11-06 19:47:59,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:47:59,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:47:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:48:00,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1181 backedges. 893 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-06 19:48:00,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:48:00,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596963830] [2024-11-06 19:48:00,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596963830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:48:00,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:48:00,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:48:00,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320494144] [2024-11-06 19:48:00,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:48:00,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:48:00,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:48:00,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:48:00,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:48:00,091 INFO L87 Difference]: Start difference. First operand 134990 states and 143511 transitions. Second operand has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:48:03,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:48:03,600 INFO L93 Difference]: Finished difference Result 270769 states and 287818 transitions. [2024-11-06 19:48:03,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:48:03,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 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 770 [2024-11-06 19:48:03,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:48:03,750 INFO L225 Difference]: With dead ends: 270769 [2024-11-06 19:48:03,750 INFO L226 Difference]: Without dead ends: 136568 [2024-11-06 19:48:03,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:48:03,809 INFO L432 NwaCegarLoop]: 1390 mSDtfsCounter, 932 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 1472 SdHoareTripleChecker+Invalid, 3060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:48:03,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [932 Valid, 1472 Invalid, 3060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [589 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-06 19:48:03,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136568 states. [2024-11-06 19:48:04,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136568 to 134984. [2024-11-06 19:48:04,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134984 states, 134983 states have (on average 1.052354740967381) internal successors, (142050), 134983 states have internal predecessors, (142050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:48:05,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134984 states to 134984 states and 142050 transitions. [2024-11-06 19:48:05,372 INFO L78 Accepts]: Start accepts. Automaton has 134984 states and 142050 transitions. Word has length 770 [2024-11-06 19:48:05,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:48:05,373 INFO L471 AbstractCegarLoop]: Abstraction has 134984 states and 142050 transitions. [2024-11-06 19:48:05,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:48:05,373 INFO L276 IsEmpty]: Start isEmpty. Operand 134984 states and 142050 transitions. [2024-11-06 19:48:05,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2024-11-06 19:48:05,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:48:05,401 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:48:05,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-06 19:48:05,401 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:48:05,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:48:05,402 INFO L85 PathProgramCache]: Analyzing trace with hash 2135332128, now seen corresponding path program 1 times [2024-11-06 19:48:05,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:48:05,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385612254] [2024-11-06 19:48:05,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:48:05,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:48:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:48:05,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1222 backedges. 641 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2024-11-06 19:48:05,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:48:05,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385612254] [2024-11-06 19:48:05,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385612254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:48:05,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:48:05,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:48:05,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312296608] [2024-11-06 19:48:05,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:48:05,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:48:05,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:48:05,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:48:05,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:48:05,605 INFO L87 Difference]: Start difference. First operand 134984 states and 142050 transitions. Second operand has 3 states, 3 states have (on average 163.0) internal successors, (489), 2 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:48:07,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:48:07,625 INFO L93 Difference]: Finished difference Result 253415 states and 267131 transitions. [2024-11-06 19:48:07,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:48:07,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 163.0) internal successors, (489), 2 states have internal predecessors, (489), 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 811 [2024-11-06 19:48:07,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:48:07,755 INFO L225 Difference]: With dead ends: 253415 [2024-11-06 19:48:07,755 INFO L226 Difference]: Without dead ends: 134179 [2024-11-06 19:48:07,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:48:07,803 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 1649 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1510 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1649 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:48:07,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1649 Valid, 286 Invalid, 1522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1510 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-06 19:48:07,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134179 states. [2024-11-06 19:48:09,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134179 to 134178. [2024-11-06 19:48:09,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134178 states, 134177 states have (on average 1.051886686988083) internal successors, (141139), 134177 states have internal predecessors, (141139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:48:09,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134178 states to 134178 states and 141139 transitions. [2024-11-06 19:48:09,278 INFO L78 Accepts]: Start accepts. Automaton has 134178 states and 141139 transitions. Word has length 811 [2024-11-06 19:48:09,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:48:09,278 INFO L471 AbstractCegarLoop]: Abstraction has 134178 states and 141139 transitions. [2024-11-06 19:48:09,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.0) internal successors, (489), 2 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:48:09,278 INFO L276 IsEmpty]: Start isEmpty. Operand 134178 states and 141139 transitions. [2024-11-06 19:48:09,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 828 [2024-11-06 19:48:09,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:48:09,320 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:48:09,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-06 19:48:09,321 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:48:09,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:48:09,321 INFO L85 PathProgramCache]: Analyzing trace with hash -2091953618, now seen corresponding path program 1 times [2024-11-06 19:48:09,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:48:09,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653538015] [2024-11-06 19:48:09,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:48:09,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:48:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:48:10,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1045 backedges. 681 proven. 110 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-06 19:48:10,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:48:10,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653538015] [2024-11-06 19:48:10,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653538015] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:48:10,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27521051] [2024-11-06 19:48:10,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:48:10,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:48:10,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:48:10,607 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:48:10,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-06 19:48:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:48:10,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 1002 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 19:48:10,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:48:11,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1045 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-06 19:48:11,394 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:48:11,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27521051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:48:11,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:48:11,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-06 19:48:11,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680298090] [2024-11-06 19:48:11,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:48:11,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:48:11,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:48:11,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:48:11,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:48:11,396 INFO L87 Difference]: Start difference. First operand 134178 states and 141139 transitions. Second operand has 3 states, 3 states have (on average 170.0) internal successors, (510), 2 states have internal predecessors, (510), 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)