./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label45.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/Problem12_label45.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', '8467039cd3b163d296fd08bc696cd2f7637ba962b4c476281adfe8f379f9ad63'] 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/Problem12_label45.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 8467039cd3b163d296fd08bc696cd2f7637ba962b4c476281adfe8f379f9ad63 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 19:44:26,033 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 19:44:26,128 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 19:44:26,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 19:44:26,134 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 19:44:26,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 19:44:26,160 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 19:44:26,160 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 19:44:26,160 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 19:44:26,160 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 19:44:26,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 19:44:26,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 19:44:26,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 19:44:26,161 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 19:44:26,161 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 19:44:26,161 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 19:44:26,161 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 19:44:26,162 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 19:44:26,162 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 19:44:26,162 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 19:44:26,162 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 19:44:26,162 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 19:44:26,162 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 19:44:26,162 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 19:44:26,162 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 19:44:26,162 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 19:44:26,162 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 19:44:26,162 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 19:44:26,163 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 19:44:26,163 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 19:44:26,163 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 19:44:26,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 19:44:26,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:44:26,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 19:44:26,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 19:44:26,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 19:44:26,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 19:44:26,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 19:44:26,164 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 19:44:26,164 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 19:44:26,164 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 19:44:26,164 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 19:44:26,164 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 -> 8467039cd3b163d296fd08bc696cd2f7637ba962b4c476281adfe8f379f9ad63 [2024-11-06 19:44:26,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 19:44:26,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 19:44:26,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 19:44:26,456 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 19:44:26,457 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 19:44:26,458 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label45.c [2024-11-06 19:44:27,697 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 19:44:28,164 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 19:44:28,166 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label45.c [2024-11-06 19:44:28,201 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3c4ebfe30/48ef690e12f54afb87b3c3ba8f61a8eb/FLAG73b956972 [2024-11-06 19:44:28,225 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3c4ebfe30/48ef690e12f54afb87b3c3ba8f61a8eb [2024-11-06 19:44:28,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 19:44:28,228 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 19:44:28,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 19:44:28,230 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 19:44:28,233 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 19:44:28,234 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:44:28" (1/1) ... [2024-11-06 19:44:28,234 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ad8b106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:44:28, skipping insertion in model container [2024-11-06 19:44:28,234 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:44:28" (1/1) ... [2024-11-06 19:44:28,344 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 19:44:28,566 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/Problem12_label45.c[6354,6367] [2024-11-06 19:44:29,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:44:29,154 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 19:44:29,174 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/Problem12_label45.c[6354,6367] [2024-11-06 19:44:29,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:44:29,543 INFO L204 MainTranslator]: Completed translation [2024-11-06 19:44:29,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:44:29 WrapperNode [2024-11-06 19:44:29,544 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 19:44:29,546 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 19:44:29,546 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 19:44:29,547 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 19:44:29,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:44:29" (1/1) ... [2024-11-06 19:44:29,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:44:29" (1/1) ... [2024-11-06 19:44:30,048 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4761 [2024-11-06 19:44:30,049 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 19:44:30,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 19:44:30,050 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 19:44:30,050 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 19:44:30,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:44:29" (1/1) ... [2024-11-06 19:44:30,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:44:29" (1/1) ... [2024-11-06 19:44:30,111 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:44:29" (1/1) ... [2024-11-06 19:44:30,298 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 19:44:30,299 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:44:29" (1/1) ... [2024-11-06 19:44:30,299 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:44:29" (1/1) ... [2024-11-06 19:44:30,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:44:29" (1/1) ... [2024-11-06 19:44:30,577 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:44:29" (1/1) ... [2024-11-06 19:44:30,608 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:44:29" (1/1) ... [2024-11-06 19:44:30,622 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:44:29" (1/1) ... [2024-11-06 19:44:30,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 19:44:30,684 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 19:44:30,684 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 19:44:30,684 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 19:44:30,685 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:44:29" (1/1) ... [2024-11-06 19:44:30,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:44:30,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:44:30,720 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 19:44:30,723 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 19:44:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 19:44:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 19:44:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 19:44:30,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 19:44:30,823 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 19:44:30,825 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 19:44:35,157 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-11-06 19:44:35,157 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 19:44:35,191 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 19:44:35,195 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 19:44:35,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:44:35 BoogieIcfgContainer [2024-11-06 19:44:35,199 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 19:44:35,201 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 19:44:35,201 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 19:44:35,206 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 19:44:35,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:44:28" (1/3) ... [2024-11-06 19:44:35,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eaf392f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:44:35, skipping insertion in model container [2024-11-06 19:44:35,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:44:29" (2/3) ... [2024-11-06 19:44:35,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eaf392f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:44:35, skipping insertion in model container [2024-11-06 19:44:35,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:44:35" (3/3) ... [2024-11-06 19:44:35,208 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label45.c [2024-11-06 19:44:35,222 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 19:44:35,222 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 19:44:35,380 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 19:44:35,393 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;@6a9bc4a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 19:44:35,394 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 19:44:35,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 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 19:44:35,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-06 19:44:35,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:44:35,412 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:44:35,413 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:44:35,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:44:35,417 INFO L85 PathProgramCache]: Analyzing trace with hash 2122806209, now seen corresponding path program 1 times [2024-11-06 19:44:35,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:44:35,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109689187] [2024-11-06 19:44:35,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:44:35,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:44:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:44:35,821 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 19:44:35,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:44:35,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109689187] [2024-11-06 19:44:35,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109689187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:44:35,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:44:35,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:44:35,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736336434] [2024-11-06 19:44:35,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:44:35,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:44:35,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:44:35,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:44:35,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:44:35,857 INFO L87 Difference]: Start difference. First operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 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 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 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 19:44:39,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:44:39,077 INFO L93 Difference]: Finished difference Result 2388 states and 4629 transitions. [2024-11-06 19:44:39,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:44:39,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-11-06 19:44:39,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:44:39,095 INFO L225 Difference]: With dead ends: 2388 [2024-11-06 19:44:39,095 INFO L226 Difference]: Without dead ends: 1506 [2024-11-06 19:44:39,107 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 19:44:39,111 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 783 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-06 19:44:39,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 481 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-06 19:44:39,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2024-11-06 19:44:39,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1506. [2024-11-06 19:44:39,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 1.6385382059800664) internal successors, (2466), 1505 states have internal predecessors, (2466), 0 states have call successors, (0), 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 19:44:39,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2466 transitions. [2024-11-06 19:44:39,224 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2466 transitions. Word has length 51 [2024-11-06 19:44:39,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:44:39,225 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 2466 transitions. [2024-11-06 19:44:39,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 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 19:44:39,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2466 transitions. [2024-11-06 19:44:39,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-06 19:44:39,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:44:39,230 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 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 19:44:39,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 19:44:39,230 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:44:39,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:44:39,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1988888109, now seen corresponding path program 1 times [2024-11-06 19:44:39,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:44:39,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725979875] [2024-11-06 19:44:39,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:44:39,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:44:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:44:39,786 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:44:39,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:44:39,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725979875] [2024-11-06 19:44:39,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725979875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:44:39,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:44:39,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:44:39,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717312427] [2024-11-06 19:44:39,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:44:39,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:44:39,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:44:39,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:44:39,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:44:39,793 INFO L87 Difference]: Start difference. First operand 1506 states and 2466 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 19:44:43,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:44:43,757 INFO L93 Difference]: Finished difference Result 4549 states and 7430 transitions. [2024-11-06 19:44:43,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:44:43,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2024-11-06 19:44:43,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:44:43,769 INFO L225 Difference]: With dead ends: 4549 [2024-11-06 19:44:43,769 INFO L226 Difference]: Without dead ends: 3008 [2024-11-06 19:44:43,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:44:43,772 INFO L432 NwaCegarLoop]: 638 mSDtfsCounter, 703 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 3074 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 3803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 3074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-06 19:44:43,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 652 Invalid, 3803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 3074 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-06 19:44:43,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2024-11-06 19:44:43,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 3008. [2024-11-06 19:44:43,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3008 states, 3007 states have (on average 1.341536415031593) internal successors, (4034), 3007 states have internal predecessors, (4034), 0 states have call successors, (0), 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 19:44:43,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 4034 transitions. [2024-11-06 19:44:43,832 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 4034 transitions. Word has length 122 [2024-11-06 19:44:43,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:44:43,833 INFO L471 AbstractCegarLoop]: Abstraction has 3008 states and 4034 transitions. [2024-11-06 19:44:43,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 19:44:43,833 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 4034 transitions. [2024-11-06 19:44:43,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-06 19:44:43,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:44:43,836 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:44:43,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 19:44:43,836 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:44:43,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:44:43,837 INFO L85 PathProgramCache]: Analyzing trace with hash 742612050, now seen corresponding path program 1 times [2024-11-06 19:44:43,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:44:43,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389629776] [2024-11-06 19:44:43,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:44:43,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:44:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:44:44,251 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:44:44,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:44:44,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389629776] [2024-11-06 19:44:44,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389629776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:44:44,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:44:44,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:44:44,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346841650] [2024-11-06 19:44:44,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:44:44,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:44:44,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:44:44,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:44:44,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:44:44,256 INFO L87 Difference]: Start difference. First operand 3008 states and 4034 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 19:44:48,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:44:48,046 INFO L93 Difference]: Finished difference Result 9769 states and 12892 transitions. [2024-11-06 19:44:48,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:44:48,047 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2024-11-06 19:44:48,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:44:48,074 INFO L225 Difference]: With dead ends: 9769 [2024-11-06 19:44:48,074 INFO L226 Difference]: Without dead ends: 6763 [2024-11-06 19:44:48,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:44:48,082 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 2094 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 4274 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2094 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 4841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 4274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-06 19:44:48,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2094 Valid, 451 Invalid, 4841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 4274 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-06 19:44:48,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6763 states. [2024-11-06 19:44:48,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6763 to 6763. [2024-11-06 19:44:48,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6763 states, 6762 states have (on average 1.287488908606921) internal successors, (8706), 6762 states have internal predecessors, (8706), 0 states have call successors, (0), 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 19:44:48,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6763 states to 6763 states and 8706 transitions. [2024-11-06 19:44:48,217 INFO L78 Accepts]: Start accepts. Automaton has 6763 states and 8706 transitions. Word has length 160 [2024-11-06 19:44:48,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:44:48,218 INFO L471 AbstractCegarLoop]: Abstraction has 6763 states and 8706 transitions. [2024-11-06 19:44:48,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 19:44:48,219 INFO L276 IsEmpty]: Start isEmpty. Operand 6763 states and 8706 transitions. [2024-11-06 19:44:48,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-06 19:44:48,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:44:48,223 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:44:48,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 19:44:48,223 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:44:48,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:44:48,224 INFO L85 PathProgramCache]: Analyzing trace with hash -280783918, now seen corresponding path program 1 times [2024-11-06 19:44:48,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:44:48,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093993842] [2024-11-06 19:44:48,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:44:48,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:44:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:44:48,729 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-06 19:44:48,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:44:48,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093993842] [2024-11-06 19:44:48,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093993842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:44:48,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:44:48,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:44:48,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280676507] [2024-11-06 19:44:48,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:44:48,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:44:48,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:44:48,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:44:48,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:44:48,734 INFO L87 Difference]: Start difference. First operand 6763 states and 8706 transitions. Second operand has 4 states, 4 states have (on average 48.5) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 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 19:44:51,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:44:51,738 INFO L93 Difference]: Finished difference Result 15816 states and 21396 transitions. [2024-11-06 19:44:51,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:44:51,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 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 263 [2024-11-06 19:44:51,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:44:51,769 INFO L225 Difference]: With dead ends: 15816 [2024-11-06 19:44:51,769 INFO L226 Difference]: Without dead ends: 9769 [2024-11-06 19:44:51,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:44:51,779 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 850 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3465 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 4018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 3465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:44:51,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 494 Invalid, 4018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 3465 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-06 19:44:51,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9769 states. [2024-11-06 19:44:51,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9769 to 9767. [2024-11-06 19:44:51,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9767 states, 9766 states have (on average 1.273192709399959) internal successors, (12434), 9766 states have internal predecessors, (12434), 0 states have call successors, (0), 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 19:44:51,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9767 states to 9767 states and 12434 transitions. [2024-11-06 19:44:51,939 INFO L78 Accepts]: Start accepts. Automaton has 9767 states and 12434 transitions. Word has length 263 [2024-11-06 19:44:51,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:44:51,940 INFO L471 AbstractCegarLoop]: Abstraction has 9767 states and 12434 transitions. [2024-11-06 19:44:51,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 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 19:44:51,941 INFO L276 IsEmpty]: Start isEmpty. Operand 9767 states and 12434 transitions. [2024-11-06 19:44:51,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-06 19:44:51,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:44:51,945 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:44:51,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 19:44:51,946 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:44:51,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:44:51,946 INFO L85 PathProgramCache]: Analyzing trace with hash 120245758, now seen corresponding path program 1 times [2024-11-06 19:44:51,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:44:51,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697741444] [2024-11-06 19:44:51,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:44:51,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:44:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:44:52,202 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-06 19:44:52,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:44:52,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697741444] [2024-11-06 19:44:52,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697741444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:44:52,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:44:52,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:44:52,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662583186] [2024-11-06 19:44:52,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:44:52,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:44:52,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:44:52,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:44:52,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:44:52,203 INFO L87 Difference]: Start difference. First operand 9767 states and 12434 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 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 19:44:54,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:44:54,765 INFO L93 Difference]: Finished difference Result 26291 states and 34157 transitions. [2024-11-06 19:44:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:44:54,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 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 266 [2024-11-06 19:44:54,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:44:54,808 INFO L225 Difference]: With dead ends: 26291 [2024-11-06 19:44:54,808 INFO L226 Difference]: Without dead ends: 17277 [2024-11-06 19:44:54,818 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 19:44:54,819 INFO L432 NwaCegarLoop]: 592 mSDtfsCounter, 619 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2021 mSolverCounterSat, 794 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 2815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 794 IncrementalHoareTripleChecker+Valid, 2021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:44:54,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 598 Invalid, 2815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [794 Valid, 2021 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-06 19:44:54,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17277 states. [2024-11-06 19:44:55,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17277 to 16526. [2024-11-06 19:44:55,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16526 states, 16525 states have (on average 1.2063540090771558) internal successors, (19935), 16525 states have internal predecessors, (19935), 0 states have call successors, (0), 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 19:44:55,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16526 states to 16526 states and 19935 transitions. [2024-11-06 19:44:55,156 INFO L78 Accepts]: Start accepts. Automaton has 16526 states and 19935 transitions. Word has length 266 [2024-11-06 19:44:55,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:44:55,157 INFO L471 AbstractCegarLoop]: Abstraction has 16526 states and 19935 transitions. [2024-11-06 19:44:55,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 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 19:44:55,158 INFO L276 IsEmpty]: Start isEmpty. Operand 16526 states and 19935 transitions. [2024-11-06 19:44:55,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-06 19:44:55,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:44:55,162 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:44:55,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 19:44:55,162 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:44:55,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:44:55,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1189419317, now seen corresponding path program 1 times [2024-11-06 19:44:55,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:44:55,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118185723] [2024-11-06 19:44:55,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:44:55,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:44:55,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:44:55,444 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-06 19:44:55,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:44:55,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118185723] [2024-11-06 19:44:55,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118185723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:44:55,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:44:55,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:44:55,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397974682] [2024-11-06 19:44:55,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:44:55,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:44:55,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:44:55,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:44:55,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:44:55,447 INFO L87 Difference]: Start difference. First operand 16526 states and 19935 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 19:44:58,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:44:58,126 INFO L93 Difference]: Finished difference Result 32299 states and 39112 transitions. [2024-11-06 19:44:58,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:44:58,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 281 [2024-11-06 19:44:58,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:44:58,158 INFO L225 Difference]: With dead ends: 32299 [2024-11-06 19:44:58,159 INFO L226 Difference]: Without dead ends: 16526 [2024-11-06 19:44:58,171 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 19:44:58,173 INFO L432 NwaCegarLoop]: 1233 mSDtfsCounter, 696 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2429 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 2429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:44:58,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 1241 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 2429 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-06 19:44:58,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16526 states. [2024-11-06 19:44:58,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16526 to 15775. [2024-11-06 19:44:58,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15775 states, 15774 states have (on average 1.1770635222518067) internal successors, (18567), 15774 states have internal predecessors, (18567), 0 states have call successors, (0), 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 19:44:58,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15775 states to 15775 states and 18567 transitions. [2024-11-06 19:44:58,330 INFO L78 Accepts]: Start accepts. Automaton has 15775 states and 18567 transitions. Word has length 281 [2024-11-06 19:44:58,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:44:58,331 INFO L471 AbstractCegarLoop]: Abstraction has 15775 states and 18567 transitions. [2024-11-06 19:44:58,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 19:44:58,332 INFO L276 IsEmpty]: Start isEmpty. Operand 15775 states and 18567 transitions. [2024-11-06 19:44:58,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-06 19:44:58,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:44:58,335 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:44:58,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 19:44:58,336 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:44:58,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:44:58,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1133778842, now seen corresponding path program 1 times [2024-11-06 19:44:58,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:44:58,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275750805] [2024-11-06 19:44:58,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:44:58,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:44:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:44:58,557 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-06 19:44:58,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:44:58,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275750805] [2024-11-06 19:44:58,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275750805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:44:58,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:44:58,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:44:58,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488218848] [2024-11-06 19:44:58,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:44:58,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:44:58,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:44:58,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:44:58,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:44:58,561 INFO L87 Difference]: Start difference. First operand 15775 states and 18567 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:45:01,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:45:01,289 INFO L93 Difference]: Finished difference Result 39058 states and 46231 transitions. [2024-11-06 19:45:01,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:45:01,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 282 [2024-11-06 19:45:01,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:45:01,328 INFO L225 Difference]: With dead ends: 39058 [2024-11-06 19:45:01,328 INFO L226 Difference]: Without dead ends: 24036 [2024-11-06 19:45:01,341 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 19:45:01,342 INFO L432 NwaCegarLoop]: 1356 mSDtfsCounter, 710 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2707 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 3010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 2707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:45:01,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 1364 Invalid, 3010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 2707 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-06 19:45:01,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24036 states. [2024-11-06 19:45:01,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24036 to 22534. [2024-11-06 19:45:01,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22534 states, 22533 states have (on average 1.1770292459947633) internal successors, (26522), 22533 states have internal predecessors, (26522), 0 states have call successors, (0), 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 19:45:01,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22534 states to 22534 states and 26522 transitions. [2024-11-06 19:45:01,614 INFO L78 Accepts]: Start accepts. Automaton has 22534 states and 26522 transitions. Word has length 282 [2024-11-06 19:45:01,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:45:01,615 INFO L471 AbstractCegarLoop]: Abstraction has 22534 states and 26522 transitions. [2024-11-06 19:45:01,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:45:01,615 INFO L276 IsEmpty]: Start isEmpty. Operand 22534 states and 26522 transitions. [2024-11-06 19:45:01,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-11-06 19:45:01,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:45:01,618 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 19:45:01,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 19:45:01,619 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:45:01,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:45:01,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1785263591, now seen corresponding path program 1 times [2024-11-06 19:45:01,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:45:01,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325830836] [2024-11-06 19:45:01,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:45:01,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:45:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:45:01,850 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-06 19:45:01,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:45:01,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325830836] [2024-11-06 19:45:01,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325830836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:45:01,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:45:01,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:45:01,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548270605] [2024-11-06 19:45:01,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:45:01,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:45:01,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:45:01,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:45:01,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:45:01,853 INFO L87 Difference]: Start difference. First operand 22534 states and 26522 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 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 19:45:04,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:45:04,525 INFO L93 Difference]: Finished difference Result 56331 states and 67373 transitions. [2024-11-06 19:45:04,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:45:04,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 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 328 [2024-11-06 19:45:04,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:45:04,570 INFO L225 Difference]: With dead ends: 56331 [2024-11-06 19:45:04,570 INFO L226 Difference]: Without dead ends: 34550 [2024-11-06 19:45:04,591 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 19:45:04,592 INFO L432 NwaCegarLoop]: 1196 mSDtfsCounter, 724 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 2756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:45:04,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 1204 Invalid, 2756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [518 Valid, 2238 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-06 19:45:04,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34550 states. [2024-11-06 19:45:04,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34550 to 34550. [2024-11-06 19:45:04,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34550 states, 34549 states have (on average 1.1429274363946857) internal successors, (39487), 34549 states have internal predecessors, (39487), 0 states have call successors, (0), 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 19:45:04,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34550 states to 34550 states and 39487 transitions. [2024-11-06 19:45:04,954 INFO L78 Accepts]: Start accepts. Automaton has 34550 states and 39487 transitions. Word has length 328 [2024-11-06 19:45:04,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:45:04,955 INFO L471 AbstractCegarLoop]: Abstraction has 34550 states and 39487 transitions. [2024-11-06 19:45:04,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 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 19:45:04,956 INFO L276 IsEmpty]: Start isEmpty. Operand 34550 states and 39487 transitions. [2024-11-06 19:45:04,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-06 19:45:04,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:45:04,959 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 19:45:04,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 19:45:04,959 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:45:04,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:45:04,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1461859373, now seen corresponding path program 1 times [2024-11-06 19:45:04,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:45:04,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250532679] [2024-11-06 19:45:04,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:45:04,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:45:05,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:45:05,541 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-06 19:45:05,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:45:05,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250532679] [2024-11-06 19:45:05,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250532679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:45:05,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:45:05,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:45:05,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959732661] [2024-11-06 19:45:05,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:45:05,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:45:05,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:45:05,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:45:05,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:45:05,548 INFO L87 Difference]: Start difference. First operand 34550 states and 39487 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 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 19:45:07,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:45:07,869 INFO L93 Difference]: Finished difference Result 76608 states and 87297 transitions. [2024-11-06 19:45:07,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:45:07,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 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 336 [2024-11-06 19:45:07,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:45:07,910 INFO L225 Difference]: With dead ends: 76608 [2024-11-06 19:45:07,910 INFO L226 Difference]: Without dead ends: 42811 [2024-11-06 19:45:07,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:45:07,933 INFO L432 NwaCegarLoop]: 913 mSDtfsCounter, 803 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2131 mSolverCounterSat, 579 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 2710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 579 IncrementalHoareTripleChecker+Valid, 2131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-06 19:45:07,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 921 Invalid, 2710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [579 Valid, 2131 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-06 19:45:07,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42811 states. [2024-11-06 19:45:08,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42811 to 40558. [2024-11-06 19:45:08,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40558 states, 40557 states have (on average 1.1183272924525975) internal successors, (45356), 40557 states have internal predecessors, (45356), 0 states have call successors, (0), 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 19:45:08,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40558 states to 40558 states and 45356 transitions. [2024-11-06 19:45:08,404 INFO L78 Accepts]: Start accepts. Automaton has 40558 states and 45356 transitions. Word has length 336 [2024-11-06 19:45:08,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:45:08,404 INFO L471 AbstractCegarLoop]: Abstraction has 40558 states and 45356 transitions. [2024-11-06 19:45:08,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 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 19:45:08,404 INFO L276 IsEmpty]: Start isEmpty. Operand 40558 states and 45356 transitions. [2024-11-06 19:45:08,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2024-11-06 19:45:08,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:45:08,420 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:45:08,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-06 19:45:08,420 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:45:08,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:45:08,420 INFO L85 PathProgramCache]: Analyzing trace with hash -202015512, now seen corresponding path program 1 times [2024-11-06 19:45:08,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:45:08,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235243501] [2024-11-06 19:45:08,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:45:08,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:45:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:45:08,702 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 707 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-06 19:45:08,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:45:08,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235243501] [2024-11-06 19:45:08,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235243501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:45:08,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:45:08,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:45:08,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495113196] [2024-11-06 19:45:08,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:45:08,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:45:08,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:45:08,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:45:08,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:45:08,705 INFO L87 Difference]: Start difference. First operand 40558 states and 45356 transitions. Second operand has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 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 19:45:11,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:45:11,250 INFO L93 Difference]: Finished difference Result 81865 states and 91467 transitions. [2024-11-06 19:45:11,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:45:11,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 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 551 [2024-11-06 19:45:11,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:45:11,285 INFO L225 Difference]: With dead ends: 81865 [2024-11-06 19:45:11,286 INFO L226 Difference]: Without dead ends: 42060 [2024-11-06 19:45:11,304 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 19:45:11,305 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 661 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2286 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 2915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 2286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:45:11,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 252 Invalid, 2915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [629 Valid, 2286 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-06 19:45:11,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42060 states. [2024-11-06 19:45:11,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42060 to 39807. [2024-11-06 19:45:11,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39807 states, 39806 states have (on average 1.1137014520424056) internal successors, (44332), 39806 states have internal predecessors, (44332), 0 states have call successors, (0), 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 19:45:11,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39807 states to 39807 states and 44332 transitions. [2024-11-06 19:45:11,609 INFO L78 Accepts]: Start accepts. Automaton has 39807 states and 44332 transitions. Word has length 551 [2024-11-06 19:45:11,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:45:11,609 INFO L471 AbstractCegarLoop]: Abstraction has 39807 states and 44332 transitions. [2024-11-06 19:45:11,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 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 19:45:11,610 INFO L276 IsEmpty]: Start isEmpty. Operand 39807 states and 44332 transitions. [2024-11-06 19:45:11,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2024-11-06 19:45:11,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:45:11,622 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:45:11,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-06 19:45:11,622 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:45:11,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:45:11,622 INFO L85 PathProgramCache]: Analyzing trace with hash -515885921, now seen corresponding path program 1 times [2024-11-06 19:45:11,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:45:11,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747453883] [2024-11-06 19:45:11,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:45:11,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:45:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:45:12,087 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 394 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-06 19:45:12,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:45:12,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747453883] [2024-11-06 19:45:12,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747453883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:45:12,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:45:12,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:45:12,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226272739] [2024-11-06 19:45:12,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:45:12,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:45:12,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:45:12,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:45:12,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:45:12,090 INFO L87 Difference]: Start difference. First operand 39807 states and 44332 transitions. Second operand has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:45:14,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:45:14,906 INFO L93 Difference]: Finished difference Result 108901 states and 122143 transitions. [2024-11-06 19:45:14,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:45:14,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 559 [2024-11-06 19:45:14,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:45:14,982 INFO L225 Difference]: With dead ends: 108901 [2024-11-06 19:45:14,982 INFO L226 Difference]: Without dead ends: 69847 [2024-11-06 19:45:15,014 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 19:45:15,015 INFO L432 NwaCegarLoop]: 555 mSDtfsCounter, 712 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2332 mSolverCounterSat, 587 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 2919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 587 IncrementalHoareTripleChecker+Valid, 2332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:45:15,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 562 Invalid, 2919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [587 Valid, 2332 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-06 19:45:15,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69847 states. [2024-11-06 19:45:15,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69847 to 66092. [2024-11-06 19:45:15,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66092 states, 66091 states have (on average 1.1068224115235055) internal successors, (73151), 66091 states have internal predecessors, (73151), 0 states have call successors, (0), 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 19:45:15,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66092 states to 66092 states and 73151 transitions. [2024-11-06 19:45:15,838 INFO L78 Accepts]: Start accepts. Automaton has 66092 states and 73151 transitions. Word has length 559 [2024-11-06 19:45:15,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:45:15,839 INFO L471 AbstractCegarLoop]: Abstraction has 66092 states and 73151 transitions. [2024-11-06 19:45:15,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:45:15,839 INFO L276 IsEmpty]: Start isEmpty. Operand 66092 states and 73151 transitions. [2024-11-06 19:45:15,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2024-11-06 19:45:15,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:45:15,864 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:45:15,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-06 19:45:15,864 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:45:15,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:45:15,865 INFO L85 PathProgramCache]: Analyzing trace with hash -446642940, now seen corresponding path program 1 times [2024-11-06 19:45:15,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:45:15,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913840839] [2024-11-06 19:45:15,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:45:15,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:45:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:45:16,472 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 187 proven. 229 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-06 19:45:16,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:45:16,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913840839] [2024-11-06 19:45:16,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913840839] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:45:16,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240086450] [2024-11-06 19:45:16,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:45:16,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:45:16,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:45:16,479 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 19:45:16,480 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 19:45:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:45:16,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:45:16,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:45:17,160 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-06 19:45:17,161 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:45:17,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240086450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:45:17,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:45:17,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-06 19:45:17,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228301952] [2024-11-06 19:45:17,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:45:17,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:45:17,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:45:17,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:45:17,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:45:17,163 INFO L87 Difference]: Start difference. First operand 66092 states and 73151 transitions. Second operand has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 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 19:45:19,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:45:19,974 INFO L93 Difference]: Finished difference Result 168981 states and 188474 transitions. [2024-11-06 19:45:19,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:45:19,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 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 569 [2024-11-06 19:45:19,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:45:20,090 INFO L225 Difference]: With dead ends: 168981 [2024-11-06 19:45:20,090 INFO L226 Difference]: Without dead ends: 103642 [2024-11-06 19:45:20,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:45:20,135 INFO L432 NwaCegarLoop]: 992 mSDtfsCounter, 524 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2297 mSolverCounterSat, 704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 3001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 704 IncrementalHoareTripleChecker+Valid, 2297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:45:20,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 999 Invalid, 3001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [704 Valid, 2297 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-06 19:45:20,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103642 states. [2024-11-06 19:45:21,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103642 to 103642. [2024-11-06 19:45:21,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103642 states, 103641 states have (on average 1.112146737295086) internal successors, (115264), 103641 states have internal predecessors, (115264), 0 states have call successors, (0), 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 19:45:21,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103642 states to 103642 states and 115264 transitions. [2024-11-06 19:45:21,424 INFO L78 Accepts]: Start accepts. Automaton has 103642 states and 115264 transitions. Word has length 569 [2024-11-06 19:45:21,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:45:21,425 INFO L471 AbstractCegarLoop]: Abstraction has 103642 states and 115264 transitions. [2024-11-06 19:45:21,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 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 19:45:21,425 INFO L276 IsEmpty]: Start isEmpty. Operand 103642 states and 115264 transitions. [2024-11-06 19:45:21,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2024-11-06 19:45:21,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:45:21,458 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:45:21,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-06 19:45:21,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-06 19:45:21,658 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:45:21,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:45:21,659 INFO L85 PathProgramCache]: Analyzing trace with hash -2072014364, now seen corresponding path program 1 times [2024-11-06 19:45:21,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:45:21,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674572568] [2024-11-06 19:45:21,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:45:21,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:45:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:45:22,344 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 546 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-06 19:45:22,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:45:22,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674572568] [2024-11-06 19:45:22,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674572568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:45:22,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:45:22,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:45:22,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669310523] [2024-11-06 19:45:22,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:45:22,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:45:22,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:45:22,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:45:22,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:45:22,347 INFO L87 Difference]: Start difference. First operand 103642 states and 115264 transitions. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 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 19:45:25,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:45:25,222 INFO L93 Difference]: Finished difference Result 231314 states and 258859 transitions. [2024-11-06 19:45:25,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:45:25,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 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 691 [2024-11-06 19:45:25,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:45:25,382 INFO L225 Difference]: With dead ends: 231314 [2024-11-06 19:45:25,383 INFO L226 Difference]: Without dead ends: 128425 [2024-11-06 19:45:25,454 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 19:45:25,454 INFO L432 NwaCegarLoop]: 1268 mSDtfsCounter, 479 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2227 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 2629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 2227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:45:25,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 1276 Invalid, 2629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 2227 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-06 19:45:25,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128425 states. [2024-11-06 19:45:26,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128425 to 126923. [2024-11-06 19:45:26,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126923 states, 126922 states have (on average 1.092379571705457) internal successors, (138647), 126922 states have internal predecessors, (138647), 0 states have call successors, (0), 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 19:45:27,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126923 states to 126923 states and 138647 transitions. [2024-11-06 19:45:27,067 INFO L78 Accepts]: Start accepts. Automaton has 126923 states and 138647 transitions. Word has length 691 [2024-11-06 19:45:27,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:45:27,068 INFO L471 AbstractCegarLoop]: Abstraction has 126923 states and 138647 transitions. [2024-11-06 19:45:27,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 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 19:45:27,068 INFO L276 IsEmpty]: Start isEmpty. Operand 126923 states and 138647 transitions. [2024-11-06 19:45:27,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2024-11-06 19:45:27,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:45:27,106 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:45:27,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-06 19:45:27,107 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:45:27,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:45:27,107 INFO L85 PathProgramCache]: Analyzing trace with hash -263910530, now seen corresponding path program 1 times [2024-11-06 19:45:27,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:45:27,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211409108] [2024-11-06 19:45:27,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:45:27,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:45:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:45:27,568 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 597 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-06 19:45:27,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:45:27,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211409108] [2024-11-06 19:45:27,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211409108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:45:27,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:45:27,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:45:27,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919016247] [2024-11-06 19:45:27,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:45:27,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:45:27,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:45:27,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:45:27,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:45:27,571 INFO L87 Difference]: Start difference. First operand 126923 states and 138647 transitions. Second operand has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 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 19:45:30,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:45:30,677 INFO L93 Difference]: Finished difference Result 277125 states and 303414 transitions. [2024-11-06 19:45:30,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:45:30,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 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 694 [2024-11-06 19:45:30,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:45:30,853 INFO L225 Difference]: With dead ends: 277125 [2024-11-06 19:45:30,854 INFO L226 Difference]: Without dead ends: 150955 [2024-11-06 19:45:30,928 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 19:45:30,929 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 716 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 641 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 2902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 641 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:45:30,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 491 Invalid, 2902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [641 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-06 19:45:31,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150955 states. [2024-11-06 19:45:32,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150955 to 126923. [2024-11-06 19:45:32,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126923 states, 126922 states have (on average 1.092379571705457) internal successors, (138647), 126922 states have internal predecessors, (138647), 0 states have call successors, (0), 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 19:45:32,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126923 states to 126923 states and 138647 transitions. [2024-11-06 19:45:32,634 INFO L78 Accepts]: Start accepts. Automaton has 126923 states and 138647 transitions. Word has length 694 [2024-11-06 19:45:32,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:45:32,634 INFO L471 AbstractCegarLoop]: Abstraction has 126923 states and 138647 transitions. [2024-11-06 19:45:32,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 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 19:45:32,634 INFO L276 IsEmpty]: Start isEmpty. Operand 126923 states and 138647 transitions. [2024-11-06 19:45:32,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 722 [2024-11-06 19:45:32,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:45:32,673 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:45:32,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-06 19:45:32,674 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:45:32,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:45:32,674 INFO L85 PathProgramCache]: Analyzing trace with hash -794148503, now seen corresponding path program 1 times [2024-11-06 19:45:32,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:45:32,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591483290] [2024-11-06 19:45:32,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:45:32,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:45:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:45:33,334 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 526 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-06 19:45:33,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:45:33,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591483290] [2024-11-06 19:45:33,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591483290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:45:33,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:45:33,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:45:33,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726822823] [2024-11-06 19:45:33,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:45:33,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:45:33,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:45:33,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:45:33,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:45:33,337 INFO L87 Difference]: Start difference. First operand 126923 states and 138647 transitions. Second operand has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 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 19:45:36,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:45:36,351 INFO L93 Difference]: Finished difference Result 297402 states and 326567 transitions. [2024-11-06 19:45:36,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:45:36,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 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 721 [2024-11-06 19:45:36,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:45:36,541 INFO L225 Difference]: With dead ends: 297402 [2024-11-06 19:45:36,541 INFO L226 Difference]: Without dead ends: 165975 [2024-11-06 19:45:36,608 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 19:45:36,608 INFO L432 NwaCegarLoop]: 1273 mSDtfsCounter, 454 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2196 mSolverCounterSat, 611 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 2807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 2196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:45:36,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 1281 Invalid, 2807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [611 Valid, 2196 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-06 19:45:36,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165975 states. [2024-11-06 19:45:38,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165975 to 148702. [2024-11-06 19:45:38,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148702 states, 148701 states have (on average 1.0788158788441233) internal successors, (160421), 148701 states have internal predecessors, (160421), 0 states have call successors, (0), 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 19:45:38,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148702 states to 148702 states and 160421 transitions. [2024-11-06 19:45:38,638 INFO L78 Accepts]: Start accepts. Automaton has 148702 states and 160421 transitions. Word has length 721 [2024-11-06 19:45:38,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:45:38,639 INFO L471 AbstractCegarLoop]: Abstraction has 148702 states and 160421 transitions. [2024-11-06 19:45:38,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 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 19:45:38,639 INFO L276 IsEmpty]: Start isEmpty. Operand 148702 states and 160421 transitions. [2024-11-06 19:45:38,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 724 [2024-11-06 19:45:38,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:45:38,681 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 19:45:38,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-06 19:45:38,681 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:45:38,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:45:38,682 INFO L85 PathProgramCache]: Analyzing trace with hash 609716404, now seen corresponding path program 1 times [2024-11-06 19:45:38,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:45:38,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910534404] [2024-11-06 19:45:38,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:45:38,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:45:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:45:39,734 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2024-11-06 19:45:39,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:45:39,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910534404] [2024-11-06 19:45:39,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910534404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:45:39,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:45:39,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:45:39,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357323064] [2024-11-06 19:45:39,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:45:39,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:45:39,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:45:39,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:45:39,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:45:39,737 INFO L87 Difference]: Start difference. First operand 148702 states and 160421 transitions. Second operand has 4 states, 4 states have (on average 90.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:45:44,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:45:44,770 INFO L93 Difference]: Finished difference Result 447604 states and 483502 transitions. [2024-11-06 19:45:44,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:45:44,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 723 [2024-11-06 19:45:44,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted.