./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label21.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/Problem11_label21.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', '09d063705287b401285699bfa86431b1230e05d127a376405f72545cb8e31896'] 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/Problem11_label21.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 09d063705287b401285699bfa86431b1230e05d127a376405f72545cb8e31896 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 19:38:09,428 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 19:38:09,508 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 19:38:09,513 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 19:38:09,514 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 19:38:09,532 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 19:38:09,533 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 19:38:09,533 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 19:38:09,534 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 19:38:09,534 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 19:38:09,535 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 19:38:09,535 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 19:38:09,535 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 19:38:09,535 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 19:38:09,535 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 19:38:09,535 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 19:38:09,535 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 19:38:09,535 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 19:38:09,535 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 19:38:09,535 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 19:38:09,535 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 19:38:09,535 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 19:38:09,535 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 19:38:09,535 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 19:38:09,535 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 19:38:09,535 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 19:38:09,535 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 19:38:09,535 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 19:38:09,536 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 19:38:09,536 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 19:38:09,536 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 19:38:09,536 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 19:38:09,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:38:09,536 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 19:38:09,536 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 19:38:09,536 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 19:38:09,536 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 19:38:09,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 19:38:09,536 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 19:38:09,537 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 19:38:09,537 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 19:38:09,537 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 19:38:09,537 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 -> 09d063705287b401285699bfa86431b1230e05d127a376405f72545cb8e31896 [2024-11-06 19:38:09,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 19:38:09,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 19:38:09,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 19:38:09,747 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 19:38:09,747 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 19:38:09,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label21.c [2024-11-06 19:38:10,820 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 19:38:11,053 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 19:38:11,056 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label21.c [2024-11-06 19:38:11,067 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ebfb432ce/47411bdf3fe94851b0c10ac8735924d4/FLAG4d0865c63 [2024-11-06 19:38:11,377 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ebfb432ce/47411bdf3fe94851b0c10ac8735924d4 [2024-11-06 19:38:11,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 19:38:11,379 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 19:38:11,380 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 19:38:11,380 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 19:38:11,386 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 19:38:11,387 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:38:11" (1/1) ... [2024-11-06 19:38:11,387 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c1afb6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:38:11, skipping insertion in model container [2024-11-06 19:38:11,387 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:38:11" (1/1) ... [2024-11-06 19:38:11,413 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 19:38:11,530 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/Problem11_label21.c[3545,3558] [2024-11-06 19:38:11,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:38:11,667 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 19:38:11,682 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/Problem11_label21.c[3545,3558] [2024-11-06 19:38:11,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:38:11,769 INFO L204 MainTranslator]: Completed translation [2024-11-06 19:38:11,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:38:11 WrapperNode [2024-11-06 19:38:11,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 19:38:11,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 19:38:11,771 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 19:38:11,772 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 19:38:11,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:38:11" (1/1) ... [2024-11-06 19:38:11,791 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:38:11" (1/1) ... [2024-11-06 19:38:11,864 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1000 [2024-11-06 19:38:11,865 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 19:38:11,865 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 19:38:11,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 19:38:11,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 19:38:11,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:38:11" (1/1) ... [2024-11-06 19:38:11,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:38:11" (1/1) ... [2024-11-06 19:38:11,886 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:38:11" (1/1) ... [2024-11-06 19:38:11,924 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 19:38:11,926 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:38:11" (1/1) ... [2024-11-06 19:38:11,926 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:38:11" (1/1) ... [2024-11-06 19:38:11,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:38:11" (1/1) ... [2024-11-06 19:38:11,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:38:11" (1/1) ... [2024-11-06 19:38:11,974 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:38:11" (1/1) ... [2024-11-06 19:38:11,982 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:38:11" (1/1) ... [2024-11-06 19:38:11,995 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 19:38:11,996 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 19:38:11,997 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 19:38:11,997 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 19:38:11,997 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:38:11" (1/1) ... [2024-11-06 19:38:12,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:38:12,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:38:12,040 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 19:38:12,048 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 19:38:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 19:38:12,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 19:38:12,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 19:38:12,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 19:38:12,112 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 19:38:12,114 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 19:38:13,174 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-06 19:38:13,174 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 19:38:13,187 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 19:38:13,188 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 19:38:13,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:38:13 BoogieIcfgContainer [2024-11-06 19:38:13,188 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 19:38:13,191 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 19:38:13,191 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 19:38:13,194 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 19:38:13,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:38:11" (1/3) ... [2024-11-06 19:38:13,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7820b9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:38:13, skipping insertion in model container [2024-11-06 19:38:13,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:38:11" (2/3) ... [2024-11-06 19:38:13,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7820b9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:38:13, skipping insertion in model container [2024-11-06 19:38:13,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:38:13" (3/3) ... [2024-11-06 19:38:13,196 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label21.c [2024-11-06 19:38:13,206 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 19:38:13,206 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 19:38:13,247 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 19:38:13,253 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;@3dc3b08e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 19:38:13,254 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 19:38:13,257 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 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 19:38:13,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-06 19:38:13,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:38:13,261 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] [2024-11-06 19:38:13,262 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:38:13,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:38:13,266 INFO L85 PathProgramCache]: Analyzing trace with hash -593706766, now seen corresponding path program 1 times [2024-11-06 19:38:13,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:38:13,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749124756] [2024-11-06 19:38:13,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:38:13,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:38:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:38:13,488 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 19:38:13,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:38:13,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749124756] [2024-11-06 19:38:13,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749124756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:38:13,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:38:13,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:38:13,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460576719] [2024-11-06 19:38:13,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:38:13,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:38:13,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:38:13,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:38:13,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:38:13,513 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 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 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 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 19:38:14,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:38:14,370 INFO L93 Difference]: Finished difference Result 769 states and 1360 transitions. [2024-11-06 19:38:14,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:38:14,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2024-11-06 19:38:14,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:38:14,379 INFO L225 Difference]: With dead ends: 769 [2024-11-06 19:38:14,379 INFO L226 Difference]: Without dead ends: 422 [2024-11-06 19:38:14,384 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 19:38:14,386 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 216 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 19:38:14,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 163 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 19:38:14,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-06 19:38:14,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 412. [2024-11-06 19:38:14,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 411 states have (on average 1.5231143552311435) internal successors, (626), 411 states have internal predecessors, (626), 0 states have call successors, (0), 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 19:38:14,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 626 transitions. [2024-11-06 19:38:14,439 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 626 transitions. Word has length 24 [2024-11-06 19:38:14,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:38:14,439 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 626 transitions. [2024-11-06 19:38:14,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 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 19:38:14,440 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 626 transitions. [2024-11-06 19:38:14,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-06 19:38:14,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:38:14,443 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:38:14,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 19:38:14,443 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:38:14,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:38:14,443 INFO L85 PathProgramCache]: Analyzing trace with hash -660284401, now seen corresponding path program 1 times [2024-11-06 19:38:14,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:38:14,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672416176] [2024-11-06 19:38:14,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:38:14,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:38:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:38:14,592 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:38:14,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:38:14,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672416176] [2024-11-06 19:38:14,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672416176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:38:14,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:38:14,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:38:14,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763363410] [2024-11-06 19:38:14,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:38:14,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:38:14,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:38:14,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:38:14,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:38:14,595 INFO L87 Difference]: Start difference. First operand 412 states and 626 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 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 19:38:15,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:38:15,208 INFO L93 Difference]: Finished difference Result 1194 states and 1821 transitions. [2024-11-06 19:38:15,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:38:15,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-11-06 19:38:15,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:38:15,212 INFO L225 Difference]: With dead ends: 1194 [2024-11-06 19:38:15,212 INFO L226 Difference]: Without dead ends: 784 [2024-11-06 19:38:15,216 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 19:38:15,216 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 175 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:38:15,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 154 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 19:38:15,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2024-11-06 19:38:15,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 784. [2024-11-06 19:38:15,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 1.3742017879948913) internal successors, (1076), 783 states have internal predecessors, (1076), 0 states have call successors, (0), 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 19:38:15,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1076 transitions. [2024-11-06 19:38:15,249 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1076 transitions. Word has length 90 [2024-11-06 19:38:15,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:38:15,250 INFO L471 AbstractCegarLoop]: Abstraction has 784 states and 1076 transitions. [2024-11-06 19:38:15,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 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 19:38:15,250 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1076 transitions. [2024-11-06 19:38:15,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-06 19:38:15,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:38:15,251 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:38:15,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 19:38:15,251 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:38:15,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:38:15,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1736045893, now seen corresponding path program 1 times [2024-11-06 19:38:15,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:38:15,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410981899] [2024-11-06 19:38:15,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:38:15,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:38:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:38:15,486 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:38:15,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:38:15,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410981899] [2024-11-06 19:38:15,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410981899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:38:15,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:38:15,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:38:15,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423645360] [2024-11-06 19:38:15,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:38:15,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:38:15,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:38:15,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:38:15,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:38:15,488 INFO L87 Difference]: Start difference. First operand 784 states and 1076 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:38:16,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:38:16,025 INFO L93 Difference]: Finished difference Result 1936 states and 2599 transitions. [2024-11-06 19:38:16,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:38:16,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-06 19:38:16,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:38:16,028 INFO L225 Difference]: With dead ends: 1936 [2024-11-06 19:38:16,028 INFO L226 Difference]: Without dead ends: 1154 [2024-11-06 19:38:16,029 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 19:38:16,030 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 119 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:38:16,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 190 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 19:38:16,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2024-11-06 19:38:16,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 1153. [2024-11-06 19:38:16,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1152 states have (on average 1.2699652777777777) internal successors, (1463), 1152 states have internal predecessors, (1463), 0 states have call successors, (0), 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 19:38:16,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1463 transitions. [2024-11-06 19:38:16,051 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1463 transitions. Word has length 94 [2024-11-06 19:38:16,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:38:16,051 INFO L471 AbstractCegarLoop]: Abstraction has 1153 states and 1463 transitions. [2024-11-06 19:38:16,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 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 19:38:16,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1463 transitions. [2024-11-06 19:38:16,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-06 19:38:16,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:38:16,054 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:38:16,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 19:38:16,054 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:38:16,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:38:16,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1419296110, now seen corresponding path program 1 times [2024-11-06 19:38:16,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:38:16,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021997660] [2024-11-06 19:38:16,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:38:16,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:38:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:38:16,220 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:38:16,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:38:16,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021997660] [2024-11-06 19:38:16,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021997660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:38:16,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:38:16,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:38:16,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490488755] [2024-11-06 19:38:16,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:38:16,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:38:16,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:38:16,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:38:16,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:38:16,221 INFO L87 Difference]: Start difference. First operand 1153 states and 1463 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:38:16,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:38:16,833 INFO L93 Difference]: Finished difference Result 2679 states and 3481 transitions. [2024-11-06 19:38:16,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:38:16,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2024-11-06 19:38:16,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:38:16,839 INFO L225 Difference]: With dead ends: 2679 [2024-11-06 19:38:16,839 INFO L226 Difference]: Without dead ends: 1712 [2024-11-06 19:38:16,840 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 19:38:16,840 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 182 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:38:16,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 332 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 19:38:16,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2024-11-06 19:38:16,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1521. [2024-11-06 19:38:16,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 1.255921052631579) internal successors, (1909), 1520 states have internal predecessors, (1909), 0 states have call successors, (0), 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 19:38:16,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 1909 transitions. [2024-11-06 19:38:16,860 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 1909 transitions. Word has length 136 [2024-11-06 19:38:16,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:38:16,860 INFO L471 AbstractCegarLoop]: Abstraction has 1521 states and 1909 transitions. [2024-11-06 19:38:16,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:38:16,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 1909 transitions. [2024-11-06 19:38:16,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-06 19:38:16,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:38:16,865 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 19:38:16,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 19:38:16,866 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:38:16,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:38:16,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1825817793, now seen corresponding path program 1 times [2024-11-06 19:38:16,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:38:16,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908827325] [2024-11-06 19:38:16,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:38:16,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:38:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:38:17,112 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-06 19:38:17,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:38:17,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908827325] [2024-11-06 19:38:17,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908827325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:38:17,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:38:17,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:38:17,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398409947] [2024-11-06 19:38:17,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:38:17,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:38:17,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:38:17,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:38:17,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:38:17,114 INFO L87 Difference]: Start difference. First operand 1521 states and 1909 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:38:17,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:38:17,695 INFO L93 Difference]: Finished difference Result 4145 states and 5277 transitions. [2024-11-06 19:38:17,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:38:17,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 206 [2024-11-06 19:38:17,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:38:17,702 INFO L225 Difference]: With dead ends: 4145 [2024-11-06 19:38:17,702 INFO L226 Difference]: Without dead ends: 2626 [2024-11-06 19:38:17,703 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 19:38:17,703 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 183 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:38:17,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 348 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 19:38:17,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2626 states. [2024-11-06 19:38:17,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2626 to 2626. [2024-11-06 19:38:17,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2626 states, 2625 states have (on average 1.211809523809524) internal successors, (3181), 2625 states have internal predecessors, (3181), 0 states have call successors, (0), 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 19:38:17,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2626 states to 2626 states and 3181 transitions. [2024-11-06 19:38:17,732 INFO L78 Accepts]: Start accepts. Automaton has 2626 states and 3181 transitions. Word has length 206 [2024-11-06 19:38:17,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:38:17,732 INFO L471 AbstractCegarLoop]: Abstraction has 2626 states and 3181 transitions. [2024-11-06 19:38:17,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:38:17,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2626 states and 3181 transitions. [2024-11-06 19:38:17,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-11-06 19:38:17,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:38:17,734 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:38:17,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 19:38:17,734 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:38:17,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:38:17,735 INFO L85 PathProgramCache]: Analyzing trace with hash 659678752, now seen corresponding path program 1 times [2024-11-06 19:38:17,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:38:17,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124975577] [2024-11-06 19:38:17,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:38:17,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:38:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:38:17,912 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-06 19:38:17,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:38:17,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124975577] [2024-11-06 19:38:17,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124975577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:38:17,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:38:17,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:38:17,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818781395] [2024-11-06 19:38:17,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:38:17,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:38:17,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:38:17,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:38:17,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:38:17,913 INFO L87 Difference]: Start difference. First operand 2626 states and 3181 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:38:18,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:38:18,495 INFO L93 Difference]: Finished difference Result 5990 states and 7353 transitions. [2024-11-06 19:38:18,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:38:18,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 242 [2024-11-06 19:38:18,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:38:18,502 INFO L225 Difference]: With dead ends: 5990 [2024-11-06 19:38:18,502 INFO L226 Difference]: Without dead ends: 3366 [2024-11-06 19:38:18,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:38:18,505 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 177 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:38:18,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 361 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 19:38:18,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3366 states. [2024-11-06 19:38:18,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3366 to 3361. [2024-11-06 19:38:18,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3361 states, 3360 states have (on average 1.2026785714285715) internal successors, (4041), 3360 states have internal predecessors, (4041), 0 states have call successors, (0), 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 19:38:18,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3361 states to 3361 states and 4041 transitions. [2024-11-06 19:38:18,542 INFO L78 Accepts]: Start accepts. Automaton has 3361 states and 4041 transitions. Word has length 242 [2024-11-06 19:38:18,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:38:18,542 INFO L471 AbstractCegarLoop]: Abstraction has 3361 states and 4041 transitions. [2024-11-06 19:38:18,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:38:18,542 INFO L276 IsEmpty]: Start isEmpty. Operand 3361 states and 4041 transitions. [2024-11-06 19:38:18,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-06 19:38:18,544 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:38:18,545 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 19:38:18,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 19:38:18,545 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:38:18,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:38:18,545 INFO L85 PathProgramCache]: Analyzing trace with hash 208185974, now seen corresponding path program 1 times [2024-11-06 19:38:18,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:38:18,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896088850] [2024-11-06 19:38:18,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:38:18,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:38:18,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:38:18,743 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-06 19:38:18,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:38:18,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896088850] [2024-11-06 19:38:18,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896088850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:38:18,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:38:18,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:38:18,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711026251] [2024-11-06 19:38:18,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:38:18,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:38:18,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:38:18,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:38:18,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:38:18,744 INFO L87 Difference]: Start difference. First operand 3361 states and 4041 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 19:38:19,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:38:19,307 INFO L93 Difference]: Finished difference Result 8381 states and 9936 transitions. [2024-11-06 19:38:19,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:38:19,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 246 [2024-11-06 19:38:19,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:38:19,318 INFO L225 Difference]: With dead ends: 8381 [2024-11-06 19:38:19,318 INFO L226 Difference]: Without dead ends: 5022 [2024-11-06 19:38:19,322 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 19:38:19,323 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 195 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:38:19,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 389 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 19:38:19,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5022 states. [2024-11-06 19:38:19,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5022 to 5021. [2024-11-06 19:38:19,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5021 states, 5020 states have (on average 1.1741035856573705) internal successors, (5894), 5020 states have internal predecessors, (5894), 0 states have call successors, (0), 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 19:38:19,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5021 states to 5021 states and 5894 transitions. [2024-11-06 19:38:19,382 INFO L78 Accepts]: Start accepts. Automaton has 5021 states and 5894 transitions. Word has length 246 [2024-11-06 19:38:19,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:38:19,383 INFO L471 AbstractCegarLoop]: Abstraction has 5021 states and 5894 transitions. [2024-11-06 19:38:19,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 19:38:19,383 INFO L276 IsEmpty]: Start isEmpty. Operand 5021 states and 5894 transitions. [2024-11-06 19:38:19,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-11-06 19:38:19,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:38:19,388 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 19:38:19,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 19:38:19,388 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:38:19,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:38:19,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1796501245, now seen corresponding path program 1 times [2024-11-06 19:38:19,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:38:19,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096769548] [2024-11-06 19:38:19,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:38:19,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:38:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:38:19,554 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-06 19:38:19,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:38:19,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096769548] [2024-11-06 19:38:19,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096769548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:38:19,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:38:19,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:38:19,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935923412] [2024-11-06 19:38:19,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:38:19,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:38:19,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:38:19,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:38:19,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:38:19,556 INFO L87 Difference]: Start difference. First operand 5021 states and 5894 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 19:38:20,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:38:20,090 INFO L93 Difference]: Finished difference Result 9670 states and 11404 transitions. [2024-11-06 19:38:20,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:38:20,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 344 [2024-11-06 19:38:20,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:38:20,101 INFO L225 Difference]: With dead ends: 9670 [2024-11-06 19:38:20,102 INFO L226 Difference]: Without dead ends: 5019 [2024-11-06 19:38:20,106 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 19:38:20,106 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 211 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:38:20,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 303 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 19:38:20,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5019 states. [2024-11-06 19:38:20,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5019 to 5019. [2024-11-06 19:38:20,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5019 states, 5018 states have (on average 1.143682742128338) internal successors, (5739), 5018 states have internal predecessors, (5739), 0 states have call successors, (0), 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 19:38:20,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5019 states to 5019 states and 5739 transitions. [2024-11-06 19:38:20,178 INFO L78 Accepts]: Start accepts. Automaton has 5019 states and 5739 transitions. Word has length 344 [2024-11-06 19:38:20,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:38:20,178 INFO L471 AbstractCegarLoop]: Abstraction has 5019 states and 5739 transitions. [2024-11-06 19:38:20,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 19:38:20,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5019 states and 5739 transitions. [2024-11-06 19:38:20,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-06 19:38:20,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:38:20,185 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:38:20,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 19:38:20,185 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:38:20,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:38:20,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1190673294, now seen corresponding path program 1 times [2024-11-06 19:38:20,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:38:20,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156263843] [2024-11-06 19:38:20,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:38:20,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:38:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:38:20,384 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2024-11-06 19:38:20,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:38:20,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156263843] [2024-11-06 19:38:20,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156263843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:38:20,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:38:20,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:38:20,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102087550] [2024-11-06 19:38:20,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:38:20,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:38:20,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:38:20,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:38:20,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:38:20,386 INFO L87 Difference]: Start difference. First operand 5019 states and 5739 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 19:38:20,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:38:20,967 INFO L93 Difference]: Finished difference Result 10956 states and 12601 transitions. [2024-11-06 19:38:20,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:38:20,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 349 [2024-11-06 19:38:20,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:38:20,979 INFO L225 Difference]: With dead ends: 10956 [2024-11-06 19:38:20,979 INFO L226 Difference]: Without dead ends: 6307 [2024-11-06 19:38:20,983 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 19:38:20,983 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 195 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:38:20,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 307 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 19:38:20,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6307 states. [2024-11-06 19:38:21,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6307 to 5387. [2024-11-06 19:38:21,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5387 states, 5386 states have (on average 1.1438915707389528) internal successors, (6161), 5386 states have internal predecessors, (6161), 0 states have call successors, (0), 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 19:38:21,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5387 states to 5387 states and 6161 transitions. [2024-11-06 19:38:21,043 INFO L78 Accepts]: Start accepts. Automaton has 5387 states and 6161 transitions. Word has length 349 [2024-11-06 19:38:21,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:38:21,043 INFO L471 AbstractCegarLoop]: Abstraction has 5387 states and 6161 transitions. [2024-11-06 19:38:21,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 19:38:21,044 INFO L276 IsEmpty]: Start isEmpty. Operand 5387 states and 6161 transitions. [2024-11-06 19:38:21,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-11-06 19:38:21,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:38:21,050 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:38:21,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-06 19:38:21,050 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:38:21,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:38:21,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1434086856, now seen corresponding path program 1 times [2024-11-06 19:38:21,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:38:21,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604300730] [2024-11-06 19:38:21,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:38:21,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:38:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:38:21,272 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-06 19:38:21,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:38:21,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604300730] [2024-11-06 19:38:21,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604300730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:38:21,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:38:21,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:38:21,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789155292] [2024-11-06 19:38:21,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:38:21,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:38:21,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:38:21,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:38:21,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:38:21,276 INFO L87 Difference]: Start difference. First operand 5387 states and 6161 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 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 19:38:21,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:38:21,827 INFO L93 Difference]: Finished difference Result 11335 states and 13028 transitions. [2024-11-06 19:38:21,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:38:21,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 396 [2024-11-06 19:38:21,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:38:21,838 INFO L225 Difference]: With dead ends: 11335 [2024-11-06 19:38:21,839 INFO L226 Difference]: Without dead ends: 6318 [2024-11-06 19:38:21,842 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 19:38:21,843 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 67 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:38:21,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 186 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 19:38:21,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6318 states. [2024-11-06 19:38:21,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6318 to 6307. [2024-11-06 19:38:21,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6307 states, 6306 states have (on average 1.1390738978750397) internal successors, (7183), 6306 states have internal predecessors, (7183), 0 states have call successors, (0), 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 19:38:21,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6307 states to 6307 states and 7183 transitions. [2024-11-06 19:38:21,907 INFO L78 Accepts]: Start accepts. Automaton has 6307 states and 7183 transitions. Word has length 396 [2024-11-06 19:38:21,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:38:21,907 INFO L471 AbstractCegarLoop]: Abstraction has 6307 states and 7183 transitions. [2024-11-06 19:38:21,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 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 19:38:21,908 INFO L276 IsEmpty]: Start isEmpty. Operand 6307 states and 7183 transitions. [2024-11-06 19:38:21,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-11-06 19:38:21,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:38:21,917 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:38:21,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-06 19:38:21,917 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:38:21,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:38:21,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1588489422, now seen corresponding path program 1 times [2024-11-06 19:38:21,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:38:21,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415568612] [2024-11-06 19:38:21,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:38:21,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:38:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:38:22,125 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-11-06 19:38:22,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:38:22,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415568612] [2024-11-06 19:38:22,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415568612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:38:22,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:38:22,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:38:22,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325294241] [2024-11-06 19:38:22,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:38:22,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:38:22,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:38:22,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:38:22,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:38:22,127 INFO L87 Difference]: Start difference. First operand 6307 states and 7183 transitions. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 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 19:38:22,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:38:22,693 INFO L93 Difference]: Finished difference Result 14267 states and 16367 transitions. [2024-11-06 19:38:22,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:38:22,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 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 449 [2024-11-06 19:38:22,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:38:22,716 INFO L225 Difference]: With dead ends: 14267 [2024-11-06 19:38:22,716 INFO L226 Difference]: Without dead ends: 7962 [2024-11-06 19:38:22,720 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 19:38:22,721 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 63 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:38:22,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 363 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 19:38:22,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7962 states. [2024-11-06 19:38:22,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7962 to 7962. [2024-11-06 19:38:22,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7962 states, 7961 states have (on average 1.134530837834443) internal successors, (9032), 7961 states have internal predecessors, (9032), 0 states have call successors, (0), 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 19:38:22,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7962 states to 7962 states and 9032 transitions. [2024-11-06 19:38:22,846 INFO L78 Accepts]: Start accepts. Automaton has 7962 states and 9032 transitions. Word has length 449 [2024-11-06 19:38:22,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:38:22,847 INFO L471 AbstractCegarLoop]: Abstraction has 7962 states and 9032 transitions. [2024-11-06 19:38:22,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 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 19:38:22,848 INFO L276 IsEmpty]: Start isEmpty. Operand 7962 states and 9032 transitions. [2024-11-06 19:38:22,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2024-11-06 19:38:22,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:38:22,857 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 19:38:22,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-06 19:38:22,857 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:38:22,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:38:22,857 INFO L85 PathProgramCache]: Analyzing trace with hash 407446619, now seen corresponding path program 1 times [2024-11-06 19:38:22,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:38:22,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941690156] [2024-11-06 19:38:22,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:38:22,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:38:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:38:23,124 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 510 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2024-11-06 19:38:23,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:38:23,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941690156] [2024-11-06 19:38:23,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941690156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:38:23,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:38:23,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:38:23,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460791177] [2024-11-06 19:38:23,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:38:23,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:38:23,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:38:23,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:38:23,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:38:23,125 INFO L87 Difference]: Start difference. First operand 7962 states and 9032 transitions. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 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 19:38:23,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:38:23,704 INFO L93 Difference]: Finished difference Result 18513 states and 21042 transitions. [2024-11-06 19:38:23,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:38:23,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 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 484 [2024-11-06 19:38:23,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:38:23,719 INFO L225 Difference]: With dead ends: 18513 [2024-11-06 19:38:23,719 INFO L226 Difference]: Without dead ends: 10921 [2024-11-06 19:38:23,724 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 19:38:23,725 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 139 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:38:23,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 129 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 19:38:23,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10921 states. [2024-11-06 19:38:23,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10921 to 10735. [2024-11-06 19:38:23,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10735 states, 10734 states have (on average 1.1191540898080865) internal successors, (12013), 10734 states have internal predecessors, (12013), 0 states have call successors, (0), 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 19:38:23,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10735 states to 10735 states and 12013 transitions. [2024-11-06 19:38:23,846 INFO L78 Accepts]: Start accepts. Automaton has 10735 states and 12013 transitions. Word has length 484 [2024-11-06 19:38:23,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:38:23,846 INFO L471 AbstractCegarLoop]: Abstraction has 10735 states and 12013 transitions. [2024-11-06 19:38:23,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 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 19:38:23,846 INFO L276 IsEmpty]: Start isEmpty. Operand 10735 states and 12013 transitions. [2024-11-06 19:38:23,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-06 19:38:23,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:38:23,858 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:38:23,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-06 19:38:23,858 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:38:23,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:38:23,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1079830754, now seen corresponding path program 1 times [2024-11-06 19:38:23,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:38:23,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972333563] [2024-11-06 19:38:23,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:38:23,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:38:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:38:24,666 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 168 proven. 406 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-06 19:38:24,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:38:24,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972333563] [2024-11-06 19:38:24,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972333563] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:38:24,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001635855] [2024-11-06 19:38:24,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:38:24,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:38:24,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:38:24,668 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 19:38:24,670 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 19:38:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:38:24,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:38:24,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:38:24,950 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2024-11-06 19:38:24,951 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:38:24,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001635855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:38:24,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:38:24,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-06 19:38:24,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873167369] [2024-11-06 19:38:24,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:38:24,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:38:24,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:38:24,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:38:24,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:38:24,952 INFO L87 Difference]: Start difference. First operand 10735 states and 12013 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 19:38:25,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:38:25,471 INFO L93 Difference]: Finished difference Result 12391 states and 13833 transitions. [2024-11-06 19:38:25,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:38:25,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 494 [2024-11-06 19:38:25,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:38:25,472 INFO L225 Difference]: With dead ends: 12391 [2024-11-06 19:38:25,472 INFO L226 Difference]: Without dead ends: 0 [2024-11-06 19:38:25,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:38:25,477 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 197 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:38:25,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 143 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 19:38:25,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-06 19:38:25,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-06 19:38:25,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:38:25,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-06 19:38:25,478 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 494 [2024-11-06 19:38:25,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:38:25,478 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-06 19:38:25,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 19:38:25,478 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-06 19:38:25,478 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-06 19:38:25,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 19:38:25,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-06 19:38:25,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-06 19:38:25,683 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:38:25,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-06 19:38:26,270 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 19:38:26,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 07:38:26 BoogieIcfgContainer [2024-11-06 19:38:26,281 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 19:38:26,281 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-06 19:38:26,282 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-06 19:38:26,282 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-06 19:38:26,282 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:38:13" (3/4) ... [2024-11-06 19:38:26,283 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-06 19:38:26,299 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-06 19:38:26,300 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-06 19:38:26,301 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-06 19:38:26,301 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-06 19:38:26,405 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-06 19:38:26,405 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-06 19:38:26,405 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-06 19:38:26,405 INFO L158 Benchmark]: Toolchain (without parser) took 15026.17ms. Allocated memory was 109.1MB in the beginning and 553.6MB in the end (delta: 444.6MB). Free memory was 82.1MB in the beginning and 314.8MB in the end (delta: -232.8MB). Peak memory consumption was 209.3MB. Max. memory is 16.1GB. [2024-11-06 19:38:26,406 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 83.9MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 19:38:26,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.30ms. Allocated memory is still 109.1MB. Free memory was 81.9MB in the beginning and 39.3MB in the end (delta: 42.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-06 19:38:26,406 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.74ms. Allocated memory is still 109.1MB. Free memory was 39.1MB in the beginning and 66.9MB in the end (delta: -27.7MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2024-11-06 19:38:26,406 INFO L158 Benchmark]: Boogie Preprocessor took 130.35ms. Allocated memory is still 109.1MB. Free memory was 66.9MB in the beginning and 42.4MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-06 19:38:26,406 INFO L158 Benchmark]: RCFGBuilder took 1191.52ms. Allocated memory was 109.1MB in the beginning and 151.0MB in the end (delta: 41.9MB). Free memory was 42.4MB in the beginning and 102.1MB in the end (delta: -59.8MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2024-11-06 19:38:26,406 INFO L158 Benchmark]: TraceAbstraction took 13090.45ms. Allocated memory was 151.0MB in the beginning and 553.6MB in the end (delta: 402.7MB). Free memory was 101.4MB in the beginning and 331.5MB in the end (delta: -230.2MB). Peak memory consumption was 354.5MB. Max. memory is 16.1GB. [2024-11-06 19:38:26,406 INFO L158 Benchmark]: Witness Printer took 123.45ms. Allocated memory is still 553.6MB. Free memory was 331.5MB in the beginning and 314.8MB in the end (delta: 16.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 19:38:26,407 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 83.9MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 390.30ms. Allocated memory is still 109.1MB. Free memory was 81.9MB in the beginning and 39.3MB in the end (delta: 42.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.74ms. Allocated memory is still 109.1MB. Free memory was 39.1MB in the beginning and 66.9MB in the end (delta: -27.7MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 130.35ms. Allocated memory is still 109.1MB. Free memory was 66.9MB in the beginning and 42.4MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1191.52ms. Allocated memory was 109.1MB in the beginning and 151.0MB in the end (delta: 41.9MB). Free memory was 42.4MB in the beginning and 102.1MB in the end (delta: -59.8MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * TraceAbstraction took 13090.45ms. Allocated memory was 151.0MB in the beginning and 553.6MB in the end (delta: 402.7MB). Free memory was 101.4MB in the beginning and 331.5MB in the end (delta: -230.2MB). Peak memory consumption was 354.5MB. Max. memory is 16.1GB. * Witness Printer took 123.45ms. Allocated memory is still 553.6MB. Free memory was 331.5MB in the beginning and 314.8MB in the end (delta: 16.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 88]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.5s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2119 SdHoareTripleChecker+Valid, 7.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2119 mSDsluCounter, 3368 SdHoareTripleChecker+Invalid, 6.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 283 mSDsCounter, 1258 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7012 IncrementalHoareTripleChecker+Invalid, 8270 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1258 mSolverCounterUnsat, 3085 mSDtfsCounter, 7012 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 531 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10735occurred in iteration=12, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 1325 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 4048 NumberOfCodeBlocks, 4048 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 4034 ConstructedInterpolants, 0 QuantifiedInterpolants, 7438 SizeOfPredicates, 0 NumberOfNonLiveVariables, 658 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 14 InterpolantComputations, 13 PerfectInterpolantSequences, 3885/4291 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: ((((((((a25 == 12) || ((141 <= a29) && (a4 == 1))) || ((((long long) a23 + 43) <= 0) && (a4 != 1))) || ((139 <= a23) && (a4 == 1))) || ((a25 == 13) && (a4 != 1))) || (246 <= a29)) || ((a25 <= 10) && (a4 == 1))) || ((a29 <= 220) && (a4 != 1))) RESULT: Ultimate proved your program to be correct! [2024-11-06 19:38:26,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE