./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p1.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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', '64bit', '--witnessprinter.graph.data.programhash', 'c13079d4927c37ef7c4e12e861d352aca7538cf90caea314288bdceb904b4d72'] 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/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p1.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash c13079d4927c37ef7c4e12e861d352aca7538cf90caea314288bdceb904b4d72 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 03:48:34,027 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 03:48:34,133 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 03:48:34,138 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 03:48:34,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 03:48:34,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 03:48:34,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 03:48:34,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 03:48:34,159 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 03:48:34,160 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 03:48:34,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 03:48:34,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 03:48:34,160 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 03:48:34,160 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 03:48:34,160 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 03:48:34,160 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 03:48:34,160 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 03:48:34,160 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 03:48:34,160 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 03:48:34,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 03:48:34,161 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 03:48:34,161 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 03:48:34,161 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 03:48:34,161 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 03:48:34,161 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 03:48:34,161 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 03:48:34,161 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 03:48:34,161 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 03:48:34,161 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 03:48:34,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:48:34,161 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 03:48:34,161 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 03:48:34,162 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 03:48:34,162 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 03:48:34,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 03:48:34,162 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 03:48:34,162 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 03:48:34,162 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 03:48:34,162 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 03:48:34,164 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c13079d4927c37ef7c4e12e861d352aca7538cf90caea314288bdceb904b4d72 [2024-11-07 03:48:34,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 03:48:34,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 03:48:34,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 03:48:34,426 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 03:48:34,426 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 03:48:34,428 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p1.c [2024-11-07 03:48:35,690 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 03:48:35,973 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 03:48:35,974 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p1.c [2024-11-07 03:48:35,992 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/30e28de1f/dc88a3c896c14b4e8c39f4b8d51f4867/FLAG4ecff9202 [2024-11-07 03:48:36,009 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/30e28de1f/dc88a3c896c14b4e8c39f4b8d51f4867 [2024-11-07 03:48:36,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 03:48:36,013 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 03:48:36,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 03:48:36,016 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 03:48:36,019 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 03:48:36,020 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:48:36" (1/1) ... [2024-11-07 03:48:36,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@faef39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:36, skipping insertion in model container [2024-11-07 03:48:36,022 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:48:36" (1/1) ... [2024-11-07 03:48:36,062 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 03:48:36,209 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/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p1.c[1258,1271] [2024-11-07 03:48:36,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:48:36,414 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 03:48:36,421 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/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p1.c[1258,1271] [2024-11-07 03:48:36,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 03:48:36,558 INFO L204 MainTranslator]: Completed translation [2024-11-07 03:48:36,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:36 WrapperNode [2024-11-07 03:48:36,559 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 03:48:36,559 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 03:48:36,560 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 03:48:36,560 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 03:48:36,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:36" (1/1) ... [2024-11-07 03:48:36,589 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:36" (1/1) ... [2024-11-07 03:48:36,781 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1476 [2024-11-07 03:48:36,781 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 03:48:36,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 03:48:36,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 03:48:36,782 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 03:48:36,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:36" (1/1) ... [2024-11-07 03:48:36,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:36" (1/1) ... [2024-11-07 03:48:36,815 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:36" (1/1) ... [2024-11-07 03:48:36,877 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]. [2024-11-07 03:48:36,881 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:36" (1/1) ... [2024-11-07 03:48:36,881 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:36" (1/1) ... [2024-11-07 03:48:36,939 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:36" (1/1) ... [2024-11-07 03:48:36,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:36" (1/1) ... [2024-11-07 03:48:36,974 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:36" (1/1) ... [2024-11-07 03:48:36,987 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:36" (1/1) ... [2024-11-07 03:48:37,020 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 03:48:37,021 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 03:48:37,022 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 03:48:37,022 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 03:48:37,023 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:36" (1/1) ... [2024-11-07 03:48:37,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 03:48:37,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:48:37,060 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) [2024-11-07 03:48:37,063 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 [2024-11-07 03:48:37,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 03:48:37,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 03:48:37,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 03:48:37,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 03:48:37,323 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 03:48:37,325 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 03:48:38,943 INFO L? ?]: Removed 723 outVars from TransFormulas that were not future-live. [2024-11-07 03:48:38,944 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 03:48:38,968 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 03:48:38,969 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 03:48:38,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:48:38 BoogieIcfgContainer [2024-11-07 03:48:38,969 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 03:48:38,971 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 03:48:38,971 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 03:48:38,975 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 03:48:38,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:48:36" (1/3) ... [2024-11-07 03:48:38,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@423077ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:48:38, skipping insertion in model container [2024-11-07 03:48:38,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:48:36" (2/3) ... [2024-11-07 03:48:38,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@423077ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:48:38, skipping insertion in model container [2024-11-07 03:48:38,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:48:38" (3/3) ... [2024-11-07 03:48:38,978 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_vMiim_p1.c [2024-11-07 03:48:38,991 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 03:48:38,992 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 03:48:39,053 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 03:48:39,066 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;@e14c4b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 03:48:39,066 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 03:48:39,073 INFO L276 IsEmpty]: Start isEmpty. Operand has 346 states, 344 states have (on average 1.497093023255814) internal successors, (515), 345 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:39,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-07 03:48:39,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:39,083 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:39,083 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:39,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:39,089 INFO L85 PathProgramCache]: Analyzing trace with hash -288881028, now seen corresponding path program 1 times [2024-11-07 03:48:39,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:39,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199542565] [2024-11-07 03:48:39,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:39,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:40,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:40,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:40,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199542565] [2024-11-07 03:48:40,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199542565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:40,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:40,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:48:40,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868562176] [2024-11-07 03:48:40,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:40,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:48:40,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:40,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:48:40,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:48:40,062 INFO L87 Difference]: Start difference. First operand has 346 states, 344 states have (on average 1.497093023255814) internal successors, (515), 345 states have internal predecessors, (515), 0 states have call successors, (0), 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 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:40,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:40,162 INFO L93 Difference]: Finished difference Result 565 states and 843 transitions. [2024-11-07 03:48:40,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:48:40,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-07 03:48:40,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:40,179 INFO L225 Difference]: With dead ends: 565 [2024-11-07 03:48:40,181 INFO L226 Difference]: Without dead ends: 345 [2024-11-07 03:48:40,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:48:40,188 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 0 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:40,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1521 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:40,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-07 03:48:40,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2024-11-07 03:48:40,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 344 states have (on average 1.4912790697674418) internal successors, (513), 344 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:40,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 513 transitions. [2024-11-07 03:48:40,255 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 513 transitions. Word has length 85 [2024-11-07 03:48:40,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:40,257 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 513 transitions. [2024-11-07 03:48:40,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:40,257 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 513 transitions. [2024-11-07 03:48:40,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-07 03:48:40,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:40,261 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:40,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 03:48:40,261 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:40,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:40,263 INFO L85 PathProgramCache]: Analyzing trace with hash -363681603, now seen corresponding path program 1 times [2024-11-07 03:48:40,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:40,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313580466] [2024-11-07 03:48:40,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:40,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:40,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:40,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:40,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313580466] [2024-11-07 03:48:40,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313580466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:40,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:40,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 03:48:40,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813678081] [2024-11-07 03:48:40,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:40,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:48:40,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:40,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:48:40,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:48:40,624 INFO L87 Difference]: Start difference. First operand 345 states and 513 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:40,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:40,678 INFO L93 Difference]: Finished difference Result 566 states and 841 transitions. [2024-11-07 03:48:40,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:48:40,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-07 03:48:40,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:40,681 INFO L225 Difference]: With dead ends: 566 [2024-11-07 03:48:40,681 INFO L226 Difference]: Without dead ends: 347 [2024-11-07 03:48:40,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 03:48:40,684 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 0 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:40,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1517 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:40,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-11-07 03:48:40,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2024-11-07 03:48:40,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 346 states have (on average 1.4884393063583814) internal successors, (515), 346 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:40,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 515 transitions. [2024-11-07 03:48:40,708 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 515 transitions. Word has length 86 [2024-11-07 03:48:40,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:40,709 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 515 transitions. [2024-11-07 03:48:40,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:40,709 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 515 transitions. [2024-11-07 03:48:40,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-07 03:48:40,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:40,714 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:40,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 03:48:40,715 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:40,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:40,715 INFO L85 PathProgramCache]: Analyzing trace with hash 512806773, now seen corresponding path program 1 times [2024-11-07 03:48:40,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:40,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349012351] [2024-11-07 03:48:40,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:40,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:40,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:41,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:41,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:41,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349012351] [2024-11-07 03:48:41,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349012351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:41,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:41,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 03:48:41,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316603896] [2024-11-07 03:48:41,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:41,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 03:48:41,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:41,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 03:48:41,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:48:41,508 INFO L87 Difference]: Start difference. First operand 347 states and 515 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:41,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:41,779 INFO L93 Difference]: Finished difference Result 595 states and 883 transitions. [2024-11-07 03:48:41,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 03:48:41,780 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-11-07 03:48:41,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:41,786 INFO L225 Difference]: With dead ends: 595 [2024-11-07 03:48:41,786 INFO L226 Difference]: Without dead ends: 374 [2024-11-07 03:48:41,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-07 03:48:41,789 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 512 mSDsluCounter, 2458 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 2951 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:41,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 2951 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:41,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-07 03:48:41,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 373. [2024-11-07 03:48:41,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 372 states have (on average 1.4838709677419355) internal successors, (552), 372 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:41,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 552 transitions. [2024-11-07 03:48:41,810 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 552 transitions. Word has length 87 [2024-11-07 03:48:41,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:41,811 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 552 transitions. [2024-11-07 03:48:41,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:41,811 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 552 transitions. [2024-11-07 03:48:41,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-07 03:48:41,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:41,817 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:41,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 03:48:41,817 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:41,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:41,817 INFO L85 PathProgramCache]: Analyzing trace with hash -373971900, now seen corresponding path program 1 times [2024-11-07 03:48:41,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:41,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538809384] [2024-11-07 03:48:41,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:41,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:42,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:42,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:42,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538809384] [2024-11-07 03:48:42,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538809384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:42,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:42,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 03:48:42,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122736000] [2024-11-07 03:48:42,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:42,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 03:48:42,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:42,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 03:48:42,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:48:42,265 INFO L87 Difference]: Start difference. First operand 373 states and 552 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:42,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:42,467 INFO L93 Difference]: Finished difference Result 600 states and 888 transitions. [2024-11-07 03:48:42,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 03:48:42,467 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-11-07 03:48:42,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:42,470 INFO L225 Difference]: With dead ends: 600 [2024-11-07 03:48:42,470 INFO L226 Difference]: Without dead ends: 379 [2024-11-07 03:48:42,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-07 03:48:42,471 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 513 mSDsluCounter, 2457 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:42,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 2950 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:42,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-07 03:48:42,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 378. [2024-11-07 03:48:42,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 377 states have (on average 1.4827586206896552) internal successors, (559), 377 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:42,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 559 transitions. [2024-11-07 03:48:42,480 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 559 transitions. Word has length 88 [2024-11-07 03:48:42,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:42,481 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 559 transitions. [2024-11-07 03:48:42,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:42,481 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 559 transitions. [2024-11-07 03:48:42,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 03:48:42,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:42,482 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:42,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 03:48:42,482 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:42,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:42,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1889870536, now seen corresponding path program 1 times [2024-11-07 03:48:42,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:42,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51302872] [2024-11-07 03:48:42,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:42,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:42,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:42,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:42,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51302872] [2024-11-07 03:48:42,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51302872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:42,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:42,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:48:42,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117750260] [2024-11-07 03:48:42,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:42,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:48:42,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:42,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:48:42,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:42,854 INFO L87 Difference]: Start difference. First operand 378 states and 559 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:43,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:43,046 INFO L93 Difference]: Finished difference Result 802 states and 1183 transitions. [2024-11-07 03:48:43,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:43,047 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-07 03:48:43,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:43,050 INFO L225 Difference]: With dead ends: 802 [2024-11-07 03:48:43,051 INFO L226 Difference]: Without dead ends: 569 [2024-11-07 03:48:43,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:48:43,053 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 1070 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 2456 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:43,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1070 Valid, 2456 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:43,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-11-07 03:48:43,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 379. [2024-11-07 03:48:43,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 378 states have (on average 1.4788359788359788) internal successors, (559), 378 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:43,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 559 transitions. [2024-11-07 03:48:43,069 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 559 transitions. Word has length 90 [2024-11-07 03:48:43,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:43,070 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 559 transitions. [2024-11-07 03:48:43,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:43,070 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 559 transitions. [2024-11-07 03:48:43,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-07 03:48:43,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:43,072 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:43,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 03:48:43,073 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:43,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:43,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1080329483, now seen corresponding path program 1 times [2024-11-07 03:48:43,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:43,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991736419] [2024-11-07 03:48:43,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:43,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:43,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:43,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:43,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991736419] [2024-11-07 03:48:43,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991736419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:43,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:43,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:48:43,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956206655] [2024-11-07 03:48:43,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:43,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:48:43,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:43,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:48:43,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:43,421 INFO L87 Difference]: Start difference. First operand 379 states and 559 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:43,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:43,592 INFO L93 Difference]: Finished difference Result 652 states and 955 transitions. [2024-11-07 03:48:43,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:43,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2024-11-07 03:48:43,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:43,595 INFO L225 Difference]: With dead ends: 652 [2024-11-07 03:48:43,595 INFO L226 Difference]: Without dead ends: 414 [2024-11-07 03:48:43,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:48:43,599 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 600 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 2471 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:43,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 2471 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:43,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-07 03:48:43,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 380. [2024-11-07 03:48:43,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 379 states have (on average 1.474934036939314) internal successors, (559), 379 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:43,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 559 transitions. [2024-11-07 03:48:43,614 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 559 transitions. Word has length 91 [2024-11-07 03:48:43,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:43,614 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 559 transitions. [2024-11-07 03:48:43,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:43,614 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 559 transitions. [2024-11-07 03:48:43,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-07 03:48:43,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:43,615 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:43,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 03:48:43,616 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:43,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:43,616 INFO L85 PathProgramCache]: Analyzing trace with hash 544002799, now seen corresponding path program 1 times [2024-11-07 03:48:43,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:43,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111311877] [2024-11-07 03:48:43,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:43,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:44,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:44,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:44,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111311877] [2024-11-07 03:48:44,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111311877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:44,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:44,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:48:44,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439088783] [2024-11-07 03:48:44,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:44,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:48:44,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:44,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:48:44,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:44,033 INFO L87 Difference]: Start difference. First operand 380 states and 559 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:44,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:44,223 INFO L93 Difference]: Finished difference Result 682 states and 997 transitions. [2024-11-07 03:48:44,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:44,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-07 03:48:44,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:44,226 INFO L225 Difference]: With dead ends: 682 [2024-11-07 03:48:44,226 INFO L226 Difference]: Without dead ends: 439 [2024-11-07 03:48:44,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:48:44,227 INFO L432 NwaCegarLoop]: 494 mSDtfsCounter, 670 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 2466 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:44,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 2466 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:44,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-07 03:48:44,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 381. [2024-11-07 03:48:44,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.4710526315789474) internal successors, (559), 380 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:44,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 559 transitions. [2024-11-07 03:48:44,242 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 559 transitions. Word has length 92 [2024-11-07 03:48:44,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:44,242 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 559 transitions. [2024-11-07 03:48:44,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:44,242 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 559 transitions. [2024-11-07 03:48:44,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-07 03:48:44,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:44,243 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:44,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 03:48:44,244 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:44,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:44,244 INFO L85 PathProgramCache]: Analyzing trace with hash -421531548, now seen corresponding path program 1 times [2024-11-07 03:48:44,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:44,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832808439] [2024-11-07 03:48:44,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:44,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:44,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:44,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:44,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832808439] [2024-11-07 03:48:44,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832808439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:44,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:44,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 03:48:44,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431960357] [2024-11-07 03:48:44,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:44,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:48:44,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:44,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:48:44,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:44,598 INFO L87 Difference]: Start difference. First operand 381 states and 559 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:44,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:44,770 INFO L93 Difference]: Finished difference Result 824 states and 1207 transitions. [2024-11-07 03:48:44,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:48:44,771 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-07 03:48:44,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:44,773 INFO L225 Difference]: With dead ends: 824 [2024-11-07 03:48:44,773 INFO L226 Difference]: Without dead ends: 576 [2024-11-07 03:48:44,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:48:44,775 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 1076 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 2471 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:44,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 2471 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:44,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-11-07 03:48:44,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 382. [2024-11-07 03:48:44,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 381 states have (on average 1.4671916010498687) internal successors, (559), 381 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:44,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 559 transitions. [2024-11-07 03:48:44,790 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 559 transitions. Word has length 93 [2024-11-07 03:48:44,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:44,790 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 559 transitions. [2024-11-07 03:48:44,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:44,790 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 559 transitions. [2024-11-07 03:48:44,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-07 03:48:44,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:44,793 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:44,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 03:48:44,793 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:44,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:44,794 INFO L85 PathProgramCache]: Analyzing trace with hash -684017642, now seen corresponding path program 1 times [2024-11-07 03:48:44,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:44,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080258696] [2024-11-07 03:48:44,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:44,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:45,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:45,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:45,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080258696] [2024-11-07 03:48:45,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080258696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:45,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:45,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:48:45,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922506933] [2024-11-07 03:48:45,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:45,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:48:45,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:45,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:48:45,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:48:45,003 INFO L87 Difference]: Start difference. First operand 382 states and 559 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:45,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:45,109 INFO L93 Difference]: Finished difference Result 795 states and 1166 transitions. [2024-11-07 03:48:45,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:48:45,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-07 03:48:45,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:45,112 INFO L225 Difference]: With dead ends: 795 [2024-11-07 03:48:45,113 INFO L226 Difference]: Without dead ends: 547 [2024-11-07 03:48:45,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:45,114 INFO L432 NwaCegarLoop]: 499 mSDtfsCounter, 1025 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 1494 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:45,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 1494 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:48:45,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-07 03:48:45,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 366. [2024-11-07 03:48:45,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 365 states have (on average 1.4684931506849315) internal successors, (536), 365 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:45,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 536 transitions. [2024-11-07 03:48:45,124 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 536 transitions. Word has length 94 [2024-11-07 03:48:45,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:45,124 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 536 transitions. [2024-11-07 03:48:45,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:45,124 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 536 transitions. [2024-11-07 03:48:45,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-07 03:48:45,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:45,126 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:45,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 03:48:45,126 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:45,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:45,127 INFO L85 PathProgramCache]: Analyzing trace with hash 920549707, now seen corresponding path program 1 times [2024-11-07 03:48:45,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:45,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389304494] [2024-11-07 03:48:45,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:45,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:45,871 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:45,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:45,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389304494] [2024-11-07 03:48:45,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389304494] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:48:45,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918503680] [2024-11-07 03:48:45,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:45,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:48:45,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:48:45,875 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) [2024-11-07 03:48:45,877 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 [2024-11-07 03:48:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:46,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 1425 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 03:48:46,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:48:47,005 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:47,007 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 03:48:47,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918503680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:47,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 03:48:47,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-07 03:48:47,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102983015] [2024-11-07 03:48:47,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:47,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 03:48:47,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:47,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 03:48:47,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:47,009 INFO L87 Difference]: Start difference. First operand 366 states and 536 transitions. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 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) [2024-11-07 03:48:47,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:47,400 INFO L93 Difference]: Finished difference Result 586 states and 862 transitions. [2024-11-07 03:48:47,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 03:48:47,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 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 197 [2024-11-07 03:48:47,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:47,403 INFO L225 Difference]: With dead ends: 586 [2024-11-07 03:48:47,403 INFO L226 Difference]: Without dead ends: 365 [2024-11-07 03:48:47,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-07 03:48:47,405 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 388 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:47,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 601 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 03:48:47,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-07 03:48:47,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2024-11-07 03:48:47,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 1.4642857142857142) internal successors, (533), 364 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:47,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 533 transitions. [2024-11-07 03:48:47,418 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 533 transitions. Word has length 197 [2024-11-07 03:48:47,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:47,419 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 533 transitions. [2024-11-07 03:48:47,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 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) [2024-11-07 03:48:47,419 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 533 transitions. [2024-11-07 03:48:47,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-07 03:48:47,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:47,421 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:47,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-07 03:48:47,621 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,SelfDestructingSolverStorable9 [2024-11-07 03:48:47,622 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:47,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:47,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1323076601, now seen corresponding path program 1 times [2024-11-07 03:48:47,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:47,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912070763] [2024-11-07 03:48:47,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:47,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:48,732 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:48,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:48,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912070763] [2024-11-07 03:48:48,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912070763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:48,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:48,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 03:48:48,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688739752] [2024-11-07 03:48:48,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:48,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 03:48:48,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:48,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 03:48:48,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:48:48,735 INFO L87 Difference]: Start difference. First operand 365 states and 533 transitions. Second operand has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 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) [2024-11-07 03:48:49,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:49,094 INFO L93 Difference]: Finished difference Result 705 states and 1032 transitions. [2024-11-07 03:48:49,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 03:48:49,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 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 198 [2024-11-07 03:48:49,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:49,097 INFO L225 Difference]: With dead ends: 705 [2024-11-07 03:48:49,097 INFO L226 Difference]: Without dead ends: 477 [2024-11-07 03:48:49,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-07 03:48:49,099 INFO L432 NwaCegarLoop]: 491 mSDtfsCounter, 787 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:49,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 1770 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 03:48:49,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-07 03:48:49,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 431. [2024-11-07 03:48:49,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 430 states have (on average 1.4627906976744185) internal successors, (629), 430 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:49,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 629 transitions. [2024-11-07 03:48:49,111 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 629 transitions. Word has length 198 [2024-11-07 03:48:49,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:49,111 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 629 transitions. [2024-11-07 03:48:49,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 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) [2024-11-07 03:48:49,111 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 629 transitions. [2024-11-07 03:48:49,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-07 03:48:49,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:49,114 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:49,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 03:48:49,114 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:49,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:49,115 INFO L85 PathProgramCache]: Analyzing trace with hash 973882016, now seen corresponding path program 1 times [2024-11-07 03:48:49,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:49,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528548860] [2024-11-07 03:48:49,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:49,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:50,317 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:50,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:50,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528548860] [2024-11-07 03:48:50,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528548860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:50,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:50,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:48:50,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517033598] [2024-11-07 03:48:50,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:50,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:48:50,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:50,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:48:50,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:48:50,319 INFO L87 Difference]: Start difference. First operand 431 states and 629 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:50,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:50,871 INFO L93 Difference]: Finished difference Result 697 states and 1020 transitions. [2024-11-07 03:48:50,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:48:50,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 0 states have call successors, (0), 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 199 [2024-11-07 03:48:50,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:50,874 INFO L225 Difference]: With dead ends: 697 [2024-11-07 03:48:50,874 INFO L226 Difference]: Without dead ends: 477 [2024-11-07 03:48:50,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:50,876 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 760 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:50,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 882 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 03:48:50,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-07 03:48:50,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 432. [2024-11-07 03:48:50,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 431 states have (on average 1.4617169373549883) internal successors, (630), 431 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:50,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 630 transitions. [2024-11-07 03:48:50,890 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 630 transitions. Word has length 199 [2024-11-07 03:48:50,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:50,892 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 630 transitions. [2024-11-07 03:48:50,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:50,892 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 630 transitions. [2024-11-07 03:48:50,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-07 03:48:50,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:50,894 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:50,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 03:48:50,895 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:50,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:50,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1515292036, now seen corresponding path program 1 times [2024-11-07 03:48:50,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:50,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885000304] [2024-11-07 03:48:50,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:50,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:51,798 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:51,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:51,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885000304] [2024-11-07 03:48:51,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885000304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:51,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:51,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 03:48:51,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101225580] [2024-11-07 03:48:51,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:51,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 03:48:51,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:51,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 03:48:51,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:48:51,800 INFO L87 Difference]: Start difference. First operand 432 states and 630 transitions. Second operand has 6 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:52,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:52,347 INFO L93 Difference]: Finished difference Result 835 states and 1216 transitions. [2024-11-07 03:48:52,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 03:48:52,347 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 0 states have call successors, (0), 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 200 [2024-11-07 03:48:52,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:52,350 INFO L225 Difference]: With dead ends: 835 [2024-11-07 03:48:52,350 INFO L226 Difference]: Without dead ends: 615 [2024-11-07 03:48:52,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-07 03:48:52,351 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 982 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:52,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 1684 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 03:48:52,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2024-11-07 03:48:52,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 542. [2024-11-07 03:48:52,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 541 states have (on average 1.4639556377079483) internal successors, (792), 541 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:52,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 792 transitions. [2024-11-07 03:48:52,366 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 792 transitions. Word has length 200 [2024-11-07 03:48:52,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:52,366 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 792 transitions. [2024-11-07 03:48:52,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:52,367 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 792 transitions. [2024-11-07 03:48:52,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-07 03:48:52,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:52,369 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:52,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 03:48:52,370 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:52,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:52,370 INFO L85 PathProgramCache]: Analyzing trace with hash -601620675, now seen corresponding path program 1 times [2024-11-07 03:48:52,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:52,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996782375] [2024-11-07 03:48:52,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:52,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:53,491 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:53,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:53,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996782375] [2024-11-07 03:48:53,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996782375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:53,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:53,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:48:53,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602345138] [2024-11-07 03:48:53,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:53,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:48:53,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:53,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:48:53,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:48:53,493 INFO L87 Difference]: Start difference. First operand 542 states and 792 transitions. Second operand has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:54,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:54,034 INFO L93 Difference]: Finished difference Result 764 states and 1119 transitions. [2024-11-07 03:48:54,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:48:54,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 0 states have call successors, (0), 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 201 [2024-11-07 03:48:54,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:54,038 INFO L225 Difference]: With dead ends: 764 [2024-11-07 03:48:54,038 INFO L226 Difference]: Without dead ends: 544 [2024-11-07 03:48:54,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 03:48:54,039 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 896 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:54,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 875 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 03:48:54,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-11-07 03:48:54,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 543. [2024-11-07 03:48:54,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 542 states have (on average 1.46309963099631) internal successors, (793), 542 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:54,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 793 transitions. [2024-11-07 03:48:54,052 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 793 transitions. Word has length 201 [2024-11-07 03:48:54,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:54,053 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 793 transitions. [2024-11-07 03:48:54,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:54,053 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 793 transitions. [2024-11-07 03:48:54,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-07 03:48:54,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:54,055 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:48:54,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 03:48:54,056 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:54,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:54,056 INFO L85 PathProgramCache]: Analyzing trace with hash 556901287, now seen corresponding path program 1 times [2024-11-07 03:48:54,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:54,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906495279] [2024-11-07 03:48:54,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:54,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:56,180 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:56,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:56,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906495279] [2024-11-07 03:48:56,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906495279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:48:56,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:48:56,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 03:48:56,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542807151] [2024-11-07 03:48:56,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:48:56,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:48:56,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:48:56,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:48:56,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 03:48:56,184 INFO L87 Difference]: Start difference. First operand 543 states and 793 transitions. Second operand has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:56,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:48:56,234 INFO L93 Difference]: Finished difference Result 854 states and 1252 transitions. [2024-11-07 03:48:56,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:48:56,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 0 states have call successors, (0), 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 202 [2024-11-07 03:48:56,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:48:56,237 INFO L225 Difference]: With dead ends: 854 [2024-11-07 03:48:56,237 INFO L226 Difference]: Without dead ends: 547 [2024-11-07 03:48:56,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-07 03:48:56,238 INFO L432 NwaCegarLoop]: 502 mSDtfsCounter, 382 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:48:56,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 1501 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 03:48:56,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-07 03:48:56,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2024-11-07 03:48:56,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 546 states have (on average 1.4597069597069596) internal successors, (797), 546 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:56,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 797 transitions. [2024-11-07 03:48:56,254 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 797 transitions. Word has length 202 [2024-11-07 03:48:56,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:48:56,254 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 797 transitions. [2024-11-07 03:48:56,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:48:56,254 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 797 transitions. [2024-11-07 03:48:56,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-07 03:48:56,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:48:56,257 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 03:48:56,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 03:48:56,257 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:48:56,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:48:56,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1493615647, now seen corresponding path program 1 times [2024-11-07 03:48:56,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:48:56,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469218716] [2024-11-07 03:48:56,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:56,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:48:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:58,888 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:48:58,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:48:58,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469218716] [2024-11-07 03:48:58,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469218716] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:48:58,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734237142] [2024-11-07 03:48:58,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:48:58,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:48:58,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:48:58,893 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:48:58,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 03:48:59,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:48:59,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-07 03:48:59,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:49:00,595 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:00,595 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 03:49:00,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734237142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:00,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 03:49:00,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-07 03:49:00,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903219957] [2024-11-07 03:49:00,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:00,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 03:49:00,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:00,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 03:49:00,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-07 03:49:00,598 INFO L87 Difference]: Start difference. First operand 547 states and 797 transitions. Second operand has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:01,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:01,179 INFO L93 Difference]: Finished difference Result 925 states and 1351 transitions. [2024-11-07 03:49:01,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 03:49:01,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 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 203 [2024-11-07 03:49:01,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:01,182 INFO L225 Difference]: With dead ends: 925 [2024-11-07 03:49:01,182 INFO L226 Difference]: Without dead ends: 547 [2024-11-07 03:49:01,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-07 03:49:01,184 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 731 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:01,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 870 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 03:49:01,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-07 03:49:01,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2024-11-07 03:49:01,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 546 states have (on average 1.456043956043956) internal successors, (795), 546 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:01,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 795 transitions. [2024-11-07 03:49:01,199 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 795 transitions. Word has length 203 [2024-11-07 03:49:01,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:01,199 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 795 transitions. [2024-11-07 03:49:01,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:01,199 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 795 transitions. [2024-11-07 03:49:01,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-07 03:49:01,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:01,218 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:01,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 03:49:01,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-07 03:49:01,419 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:01,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:01,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1610051298, now seen corresponding path program 1 times [2024-11-07 03:49:01,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:01,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046496147] [2024-11-07 03:49:01,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:01,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:04,093 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:04,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:04,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046496147] [2024-11-07 03:49:04,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046496147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:04,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 03:49:04,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 03:49:04,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786319299] [2024-11-07 03:49:04,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:04,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 03:49:04,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:04,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 03:49:04,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-07 03:49:04,097 INFO L87 Difference]: Start difference. First operand 547 states and 795 transitions. Second operand has 11 states, 11 states have (on average 18.636363636363637) internal successors, (205), 11 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:04,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:04,388 INFO L93 Difference]: Finished difference Result 978 states and 1416 transitions. [2024-11-07 03:49:04,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 03:49:04,388 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 18.636363636363637) internal successors, (205), 11 states have internal predecessors, (205), 0 states have call successors, (0), 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 205 [2024-11-07 03:49:04,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:04,392 INFO L225 Difference]: With dead ends: 978 [2024-11-07 03:49:04,392 INFO L226 Difference]: Without dead ends: 672 [2024-11-07 03:49:04,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2024-11-07 03:49:04,394 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 1090 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 2604 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:04,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 2604 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:04,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2024-11-07 03:49:04,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 656. [2024-11-07 03:49:04,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 655 states have (on average 1.4381679389312978) internal successors, (942), 655 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:04,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 942 transitions. [2024-11-07 03:49:04,409 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 942 transitions. Word has length 205 [2024-11-07 03:49:04,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:04,410 INFO L471 AbstractCegarLoop]: Abstraction has 656 states and 942 transitions. [2024-11-07 03:49:04,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.636363636363637) internal successors, (205), 11 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:04,410 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 942 transitions. [2024-11-07 03:49:04,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-07 03:49:04,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:04,412 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:04,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 03:49:04,412 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:04,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:04,413 INFO L85 PathProgramCache]: Analyzing trace with hash 161548361, now seen corresponding path program 1 times [2024-11-07 03:49:04,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:04,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023755601] [2024-11-07 03:49:04,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:04,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:06,197 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:06,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:06,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023755601] [2024-11-07 03:49:06,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023755601] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:49:06,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401498066] [2024-11-07 03:49:06,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:06,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:06,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:49:06,200 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:49:06,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 03:49:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:07,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 1443 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-07 03:49:07,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:49:07,787 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:07,788 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 03:49:07,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401498066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:07,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 03:49:07,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2024-11-07 03:49:07,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514775361] [2024-11-07 03:49:07,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:07,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 03:49:07,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:07,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 03:49:07,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-11-07 03:49:07,790 INFO L87 Difference]: Start difference. First operand 656 states and 942 transitions. Second operand has 7 states, 7 states have (on average 29.285714285714285) internal successors, (205), 7 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:07,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:07,923 INFO L93 Difference]: Finished difference Result 969 states and 1403 transitions. [2024-11-07 03:49:07,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 03:49:07,924 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 29.285714285714285) internal successors, (205), 7 states have internal predecessors, (205), 0 states have call successors, (0), 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 205 [2024-11-07 03:49:07,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:07,927 INFO L225 Difference]: With dead ends: 969 [2024-11-07 03:49:07,927 INFO L226 Difference]: Without dead ends: 660 [2024-11-07 03:49:07,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2024-11-07 03:49:07,928 INFO L432 NwaCegarLoop]: 487 mSDtfsCounter, 382 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:07,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 2425 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:07,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2024-11-07 03:49:07,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 658. [2024-11-07 03:49:07,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 657 states have (on average 1.4368340943683409) internal successors, (944), 657 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:07,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 944 transitions. [2024-11-07 03:49:07,942 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 944 transitions. Word has length 205 [2024-11-07 03:49:07,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:07,943 INFO L471 AbstractCegarLoop]: Abstraction has 658 states and 944 transitions. [2024-11-07 03:49:07,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.285714285714285) internal successors, (205), 7 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:07,943 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 944 transitions. [2024-11-07 03:49:07,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-07 03:49:07,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:07,945 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:07,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 03:49:08,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:08,146 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:08,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:08,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2024220089, now seen corresponding path program 1 times [2024-11-07 03:49:08,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:08,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429007570] [2024-11-07 03:49:08,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:08,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:10,066 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:10,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:10,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429007570] [2024-11-07 03:49:10,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429007570] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:49:10,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030025651] [2024-11-07 03:49:10,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:10,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:10,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:49:10,070 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:49:10,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 03:49:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:10,837 INFO L255 TraceCheckSpWp]: Trace formula consists of 1446 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-07 03:49:10,842 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:49:11,766 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:11,767 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 03:49:12,923 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:12,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030025651] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 03:49:12,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 03:49:12,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 13] total 36 [2024-11-07 03:49:12,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530750887] [2024-11-07 03:49:12,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 03:49:12,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-07 03:49:12,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:12,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-07 03:49:12,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1146, Unknown=0, NotChecked=0, Total=1260 [2024-11-07 03:49:12,928 INFO L87 Difference]: Start difference. First operand 658 states and 944 transitions. Second operand has 36 states, 36 states have (on average 16.77777777777778) internal successors, (604), 36 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:14,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:14,401 INFO L93 Difference]: Finished difference Result 1218 states and 1757 transitions. [2024-11-07 03:49:14,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-07 03:49:14,401 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 16.77777777777778) internal successors, (604), 36 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 206 [2024-11-07 03:49:14,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:14,405 INFO L225 Difference]: With dead ends: 1218 [2024-11-07 03:49:14,405 INFO L226 Difference]: Without dead ends: 828 [2024-11-07 03:49:14,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1089 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=679, Invalid=4433, Unknown=0, NotChecked=0, Total=5112 [2024-11-07 03:49:14,408 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 2822 mSDsluCounter, 11564 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2822 SdHoareTripleChecker+Valid, 12044 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:14,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2822 Valid, 12044 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 03:49:14,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2024-11-07 03:49:14,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 695. [2024-11-07 03:49:14,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 694 states have (on average 1.4322766570605188) internal successors, (994), 694 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:14,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 994 transitions. [2024-11-07 03:49:14,425 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 994 transitions. Word has length 206 [2024-11-07 03:49:14,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:14,426 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 994 transitions. [2024-11-07 03:49:14,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 16.77777777777778) internal successors, (604), 36 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:14,427 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 994 transitions. [2024-11-07 03:49:14,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-07 03:49:14,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:14,429 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:14,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 03:49:14,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:14,630 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:14,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:14,631 INFO L85 PathProgramCache]: Analyzing trace with hash -33163772, now seen corresponding path program 1 times [2024-11-07 03:49:14,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:14,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17685743] [2024-11-07 03:49:14,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:14,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:16,492 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:16,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:16,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17685743] [2024-11-07 03:49:16,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17685743] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:49:16,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000652495] [2024-11-07 03:49:16,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:16,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:16,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:49:16,496 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:49:16,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 03:49:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:17,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 1453 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-07 03:49:17,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:49:17,907 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:17,907 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 03:49:17,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000652495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:17,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 03:49:17,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2024-11-07 03:49:17,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211584498] [2024-11-07 03:49:17,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:17,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 03:49:17,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:17,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 03:49:17,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-11-07 03:49:17,909 INFO L87 Difference]: Start difference. First operand 695 states and 994 transitions. Second operand has 6 states, 6 states have (on average 34.833333333333336) internal successors, (209), 6 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:18,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:18,007 INFO L93 Difference]: Finished difference Result 1053 states and 1517 transitions. [2024-11-07 03:49:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 03:49:18,008 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 34.833333333333336) internal successors, (209), 6 states have internal predecessors, (209), 0 states have call successors, (0), 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 209 [2024-11-07 03:49:18,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:18,010 INFO L225 Difference]: With dead ends: 1053 [2024-11-07 03:49:18,010 INFO L226 Difference]: Without dead ends: 705 [2024-11-07 03:49:18,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-07 03:49:18,012 INFO L432 NwaCegarLoop]: 487 mSDtfsCounter, 380 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 1939 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:18,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 1939 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 03:49:18,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-11-07 03:49:18,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 699. [2024-11-07 03:49:18,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.4297994269340975) internal successors, (998), 698 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:18,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 998 transitions. [2024-11-07 03:49:18,024 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 998 transitions. Word has length 209 [2024-11-07 03:49:18,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:18,025 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 998 transitions. [2024-11-07 03:49:18,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 34.833333333333336) internal successors, (209), 6 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:18,025 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 998 transitions. [2024-11-07 03:49:18,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-07 03:49:18,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:18,026 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:18,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 03:49:18,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:18,228 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:18,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:18,228 INFO L85 PathProgramCache]: Analyzing trace with hash -387824430, now seen corresponding path program 1 times [2024-11-07 03:49:18,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:18,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740242732] [2024-11-07 03:49:18,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:18,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:18,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:19,721 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:19,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:19,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740242732] [2024-11-07 03:49:19,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740242732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:49:19,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500960518] [2024-11-07 03:49:19,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:19,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:19,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:49:19,725 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:49:19,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-07 03:49:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:20,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 1453 conjuncts, 105 conjuncts are in the unsatisfiable core [2024-11-07 03:49:20,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:49:22,043 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:22,043 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 03:49:22,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500960518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 03:49:22,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 03:49:22,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [13] total 25 [2024-11-07 03:49:22,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315190932] [2024-11-07 03:49:22,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 03:49:22,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 03:49:22,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:22,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 03:49:22,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2024-11-07 03:49:22,045 INFO L87 Difference]: Start difference. First operand 699 states and 998 transitions. Second operand has 14 states, 14 states have (on average 14.928571428571429) internal successors, (209), 14 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:23,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:23,271 INFO L93 Difference]: Finished difference Result 1335 states and 1915 transitions. [2024-11-07 03:49:23,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 03:49:23,272 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 14.928571428571429) internal successors, (209), 14 states have internal predecessors, (209), 0 states have call successors, (0), 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 209 [2024-11-07 03:49:23,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:23,274 INFO L225 Difference]: With dead ends: 1335 [2024-11-07 03:49:23,275 INFO L226 Difference]: Without dead ends: 808 [2024-11-07 03:49:23,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=1103, Unknown=0, NotChecked=0, Total=1260 [2024-11-07 03:49:23,276 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 728 mSDsluCounter, 2247 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 2343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:23,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 2516 Invalid, 2343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2340 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 03:49:23,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-07 03:49:23,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 771. [2024-11-07 03:49:23,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 770 states have (on average 1.4285714285714286) internal successors, (1100), 770 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:23,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1100 transitions. [2024-11-07 03:49:23,290 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1100 transitions. Word has length 209 [2024-11-07 03:49:23,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:23,290 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 1100 transitions. [2024-11-07 03:49:23,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.928571428571429) internal successors, (209), 14 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:23,290 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1100 transitions. [2024-11-07 03:49:23,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-07 03:49:23,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:23,292 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:23,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-07 03:49:23,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-07 03:49:23,493 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:23,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:23,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1461042710, now seen corresponding path program 1 times [2024-11-07 03:49:23,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:23,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355683506] [2024-11-07 03:49:23,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:23,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:25,084 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:25,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:25,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355683506] [2024-11-07 03:49:25,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355683506] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:49:25,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174812308] [2024-11-07 03:49:25,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:25,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:25,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:49:25,087 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:49:25,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-07 03:49:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:25,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-11-07 03:49:25,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:49:26,665 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:26,665 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 03:49:28,461 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:28,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174812308] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 03:49:28,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 03:49:28,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 20, 17] total 43 [2024-11-07 03:49:28,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033728805] [2024-11-07 03:49:28,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 03:49:28,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-07 03:49:28,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:28,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-07 03:49:28,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=1488, Unknown=0, NotChecked=0, Total=1806 [2024-11-07 03:49:28,464 INFO L87 Difference]: Start difference. First operand 771 states and 1100 transitions. Second operand has 43 states, 43 states have (on average 12.395348837209303) internal successors, (533), 43 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:30,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 03:49:30,446 INFO L93 Difference]: Finished difference Result 3600 states and 5199 transitions. [2024-11-07 03:49:30,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2024-11-07 03:49:30,447 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 12.395348837209303) internal successors, (533), 43 states have internal predecessors, (533), 0 states have call successors, (0), 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 209 [2024-11-07 03:49:30,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 03:49:30,456 INFO L225 Difference]: With dead ends: 3600 [2024-11-07 03:49:30,456 INFO L226 Difference]: Without dead ends: 3286 [2024-11-07 03:49:30,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 387 SyntacticMatches, 2 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4094 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1911, Invalid=10745, Unknown=0, NotChecked=0, Total=12656 [2024-11-07 03:49:30,462 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 15158 mSDsluCounter, 10013 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15158 SdHoareTripleChecker+Valid, 10503 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 03:49:30,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15158 Valid, 10503 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 03:49:30,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3286 states. [2024-11-07 03:49:30,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3286 to 1565. [2024-11-07 03:49:30,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 1.4335038363171355) internal successors, (2242), 1564 states have internal predecessors, (2242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:30,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 2242 transitions. [2024-11-07 03:49:30,497 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 2242 transitions. Word has length 209 [2024-11-07 03:49:30,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 03:49:30,497 INFO L471 AbstractCegarLoop]: Abstraction has 1565 states and 2242 transitions. [2024-11-07 03:49:30,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 12.395348837209303) internal successors, (533), 43 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 03:49:30,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 2242 transitions. [2024-11-07 03:49:30,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-07 03:49:30,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 03:49:30,499 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-07 03:49:30,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-07 03:49:30,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:30,700 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 03:49:30,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 03:49:30,701 INFO L85 PathProgramCache]: Analyzing trace with hash 2065534257, now seen corresponding path program 1 times [2024-11-07 03:49:30,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 03:49:30,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542975474] [2024-11-07 03:49:30,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:30,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 03:49:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:33,251 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:33,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 03:49:33,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542975474] [2024-11-07 03:49:33,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542975474] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 03:49:33,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237093689] [2024-11-07 03:49:33,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 03:49:33,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 03:49:33,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 03:49:33,254 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 03:49:33,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-07 03:49:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 03:49:34,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 129 conjuncts are in the unsatisfiable core [2024-11-07 03:49:34,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 03:49:36,584 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:36,584 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 03:49:41,044 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 03:49:41,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237093689] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 03:49:41,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 03:49:41,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 25, 26] total 62 [2024-11-07 03:49:41,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650885965] [2024-11-07 03:49:41,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 03:49:41,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-11-07 03:49:41,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 03:49:41,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-11-07 03:49:41,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=417, Invalid=3365, Unknown=0, NotChecked=0, Total=3782 [2024-11-07 03:49:41,047 INFO L87 Difference]: Start difference. First operand 1565 states and 2242 transitions. Second operand has 62 states, 62 states have (on average 9.85483870967742) internal successors, (611), 62 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)